This has been copied for a work in process by Terrell Neuage for a Ph.D on Conversation of Internet Chatroom ‘speech’ at the University of South Australia

The original site for this article is linked at

· Jargon File - This document is a collection of slang terms used by various subcultures of computer hackers.

· Domain name registries around the world

· Emoticons/abbreviations used in chatrooms and SMS and Email

· ONLINE JOURNALS which discuss chatrooms and virtual communities

· CURRENT RESEARCH

BABEL: A GLOSSARY OF COMPUTER ORIENTED ABBREVIATIONS AND ACRONYMS Version 01B http://www.hjs.org/BABEL.HTM

ALSO SEE NetLingo which is an online dictionary about the Internet. It contains hundreds of words and definitions that describe the technology and community world of the Web.

Copyright (C) 1989-2001 Irving & Richard Kind All Rights Reserved c/o K & D, One Church Lane, Baltimore, MD 21208 Jan 2001 version = 01A Jan 2002 version = 02A May 2001 version = 01B May 2002 version = 02B Sep 2001 version = 01C Sep 2002 version = 02C

COUNTRY DOMAIN NAMES

A...

1)           AA        Auto Answer

2)          AAB       All-to-All Broadcast

3)           AAL       Asynchronous Transfer Mode Adaption Layer

4)          AAM            Automatic Acoustic Management

5)           AAP       Applications Access Point [DEC]

6)          AARP      AppleTalk Address Resolution Protocol

7)           AAS       All-to-All Scatter

8)          AASP      ASCII Asynchronous Support Package

9)          AAT       Average Access Time

10)        AATP      Authorized Academic Training Program [Microsoft]

11)         .ABA      Address Book Archive (file name extension) [Palm]

12)        ABC    *  Atanasoff-Berry Computer  (First digital

13)        calculating machine that used vacuum tubes)

14)        ABEND     Abnormal End

15)        ABI       Application Binary Interface

16)        ABIOS     Advanced BIOS

17)        ABIST     Automatic Built-In Self-Test [IBM]

18)        ABLE      Adaptive Battery Life Extender

19)        ABR       Available Bit Rate

20)       ABRS      Automated Book Request System [British Library]

21)        ABS       Address Book Synchronization [IBM] + Absolute

22)       ABT       Abort

23)       ABTS      ASCII Block Terminal Services

24)       AC        Autocheck + Automatic Computer + Alternating Current

25)       ACAP      Application Configuration Access Protocol

26)       ACC       Accumulator

27)       ACCMAIL   Accessing the Internet Via Email

28)       ACD       Automatic Call Distribution

29)       ACDI      Asynchronous Communications Device Interface

30)       ACE       Access Control Encryption/Entry +

31)        Adobe Certified Expert +

32)       Advanced Computing Environment [SCO] +

33)        Adverse Channel Enhancements [Microcom] +

34)       Automatic Computing Engine

35)        ACF       Access Control Field +

36)       Advanced Communications Function

37)        ACH       Automated Clearing House

38)       ACIAS     Automated Calibration Interval Analysis System

39)       ACIS      American Committee for Interoperable Systems

40)       ACK       Acknowledgment

41)        ACL       Access Control List + Asynchronous Connection-Less (link)

42)       ACM       Association for Computing Machinery

43)       Audio Compression Manager [Microsoft]

44)       ACMS      Application Control Management System

45)       ACP       Ancillary Control Program + Auxiliary Control Process

46)       ACPI      Advanced Configuration and Power Interface

47)       ACR       Allowed Cell Rate

48)       ACROSS    Automated Cargo Release and Operations

49)       Service System

50)       ACS       Access + Access Control Set + Access Control System +

51)        Advanced Computer System [IBM] +

52)       Anti Curl System + Asynchronous Communication Server

53)        ACSS      Audio Cascading Style Sheets

54)       ACTS      Automated Computer Time Service

55)        ACTT      Advanced Communication and Timekeeping Technology [Seiko]

56)       ACU       Automatic Calling Unit

57)        ACVC      Ada Compiler Validation Capacity

58)       A/D       Analog to Digital

59)       ADA       Automatic Data Acquisitions +

60)       (Programming Language named after Augusta Ada Lovelace)

61)        ADB       Apple Desktop Bus

62)       ADC       Adaptive Data Compression (protocol) [Hayes] +

63)       Add with Carry + Analog to Digital Converter

64)       ADCCP     Advanced Data Communication Control Procedures

65)       ADD       Automatic Document Detection [WordPerfect]

66)       ADF       Automatic Document Feeder +

67)       Automatically Defined Function

68)       .ADF      Adapter Description File (file name extension)

69)       ADI       AutoCad/AutoDesk Device Interface (driver)

70)       ADL       Address Data Latch

71)        ADLAT     Adaptive Lattice Filter

72)       ADLC      Adaptive Lossless Data Compression [IBM] +

73)        Asynchronous Data Link Control

74)       ADMACS    Apple Document Management And Conrol System

75)        ADMD      Administrative Management Domain [X.400]

76)       .ADN      Add In Utility (file name extension)

77)        [Lotus 1-2-3] [LDC]

78)       ADO       Active Data Objects

79)       ADP       Automatic Data Processing

80)       ADPCM     Adaptive Differential Pulse Code Modulation

81)        ADR       Address

82)       ADS       Application Development Solutions [AT&T] +

83)       Application Development System +

84)       Automatic Distribution System

85)       ADSC      Address Status Changed +

86)       Adobe Document Structuring Conventions

87)       ADSI      Active Directory Service Interface [Microsoft] +

88)       Analog Display Services Interface

89)       ADSL      (See DSL)

90)       ADSP      AppleTalk Datastream Protocol

91)        ADSR      Attack, Decay, Sustain, Release

92)       ADT       Abstract Data Type + Application Data Types

93)       ADU       Automatic Dialing Unit

94)       AE        Above or Equal

95)       AEB       Analog Expansion Bus [Dialogic]

96)       AEC       Architecture, Engineering, Construction

97)       .AERO        Aviation Industry (Domain Name) [Internet]

98)       AES       Advanced Encryption Standard

99)       AESA      ATM End System Address

100)     AF        Auxiliary carry Flag

101)      AFA       Accelerated File Access

102)     AFC       Automatic Font Change + Automatic Frequency Control

103)     AFD       Automatic File Distribution

104)     AFDW      Active Framework for Data Warehousing [Microsoft]

105)     AFI       Authority and Format Identifier

106)     AFII      Association for Font Information Interchange

107)     AFIRM     Automated Fingerprint Image Reporting and Match

108)     AFIS      Automated Fingerprint Identification System

109)     .AFM      Adobe Font Metrics (file name extension) [Adobe Systems]

110)      AFP       Advanced Function Presentation [IBM] +

111)       Advanced Function Printing +

112)      Appletalk Filing Protocol [Macintosh]

113)      AFS       Andrew File System (protocols)

114)      AFTP      Anonymous File Transfer Protocol

115)      AGA       Advanced Graphics Adapter

116)      AGC       Automatic Gain Control

117)      AGP       Accelerated/Advanced Graphics Port

118)      AGRAS     Antiglare-Antireflective-Antistatic

119)      AGU       Address-Generation Unit

120)     AH               Authentication Header (protocol)

121)      AHS       Automated Highway Systems

122)     AI        Analog Input + Artificial Intelligence

123)     AIA       Applications Integration Architecture [DEC]

124)     AIC       AIXwindows Interface Composer [IBM]

125)     AIF       Audio Interchange Format

126)     AIIM      Association for Information and Image Management

127)     AIM       AOL Instant Messenger

128)     AIN       Advanced Intelligent Network [Bell Atlantic]

129)     AIR       Architecture Implementation Review

130)     AIS       Automated Identification System [NCIC] +

131)      Automated Information Systems

132)     AISB      Association of Imaging Service Bureaus

133)     AISP      Association of Information Systems Professionals

134)     AIT       Advanced Intelligent Tape (drive) [Sony]

135)     AIX       Advanced Interactive Executive [IBM]

136)     ALAT           Advanced Load Address Table

137)     ALC       Arithmetic and Logic Circuits +

138)     Automatic Level Control

139)     ALE       Address Latch Enable +

140)     Application Linking and Embedding

141)      ALGOL     Algorithmic Oriented Language (see IAL)

142)     ALIBI     Adaptive Location of Internetworked Bases

143)     of Information

144)     ALINK     Active Link [HTML]

145)     ALIWEB    Archie Like Indexing in the Web [Internet]

146)     ALN       Asynchronous Learning Network

147)     ALR       Advanced Logic Research, Inc.

148)     ALT       Alternate (mode)

149)     ALT.      Alternate lifestyle [USENET Newsgroup Category]

150)     ALU       Arithmetic Logic Unit

151)      AMA       Automatic Message Accounting

152)     AMANDDA   Automated Messaging and Directory Assistance

153)     AMASS     Archival Management and Storage System

154)     AMD       Active Matrix Display + Advanced Micro Devices, Inc.

155)     AMI       Alternate Mark Inversion + American Megatrends, Inc. +

156)     Application Messaging Interface

157)     AMMA      Advanced Memory Management Architecture

158)     [Everex Systems]

159)     AMPS      Advanced Mobile Phone Service

160)     AMR            Audio Modem Riser

161)      ANCOVA    Analysis of Covariance

162)     ANDF      Architecture-Neutral Distribution Format

163)     ANI       Automatic Number Identification

164)     .ANI      Animated Cursor (file name extension) [Microsoft]

165)     ANN       Artificial Neural Network

166)     .ANN      Annotations (file name extension) [IBM]

167)     ANOVA     Analysis Of Variance

168)     ANSI      American National Standards Institute

169)     ANX       Automotive Network Exchange [Chrysler/Ford/

170)     General Motors]

171)      AO        Analog Output

172)     AOCE      Apple Open Collaboration Environment

173)     AO/DI     Always On/Dynamic ISDN

174)     AOE       Application Operating Environment [AT&T]

175)     AOL       America Online

176)     AOS       Add Or Subtract

177)     AP        Adjunct Processor + Application Processor

178)     A/P       Accounts Payable

179)     APA       Adaptive Packet Assembly +

180)     All Points Addressable +

181)      Arithmetic Processing Accelerator

182)     APAR      Authorized Program Analysis Report [IBM]

183)     APAREN    Address Parity Enable [IBM]

184)     APCUG     Association of PC User Groups

185)     APDU      Application Protocol Data Units

186)     API       Application Program Interface

187)     APIC      Advanced Programmable Interrupt Controller (bus) [Intel]

188)     APIS      Advanced Passenger Information System

189)     APL     * A Programming Language (Mathematics)

190)     APM       Advanced Power Management [IBM]

191)      APNIC     Asia-Pacific Network Information Center [Internet]

192)     APOP      Authenticated Post Office Protocol

193)     .APP      Application (file name extension) [R:Base]

194)     APPC      Advanced Program-to-Program Communications [IBM]

195)     APPI      Advanced Peer-to-Peer Internetworking

196)     APPLETS   Applications

197)     APPN      Advanced Peer-to-Peer Networking [IBM]

198)     APPS      Applications

199)     APRP      Adaptive Pattern Recognition Processing

200)    APS       Advanced Photo System + Advanced Printing Service [IBM]

201)     Asynchronous Protocol Specification

202)    APSE      ADA Programming Support Environment

203)    APT       Address Pass Through +

204)    Advanced Parallel Technology +

205)    Automatically Programmed Tools

206)    A/R       Accounts Receivable

207)    ARA       AppleTalk Remote Access

208)    ARAG      Antireflective-Antiglare

209)    ARAS      Antireflective-Antistatic

210)     .ARC      Archive (file name extension)

211)      ARCA      Advanced RISC Computing Architecture

212)     ARCnet    Attached Resource Computer Network

213)     .ARJ      Compressed File (file name extension) [Jung]

214)     ARL       Adjusted Ring Length

215)     ARLL      Advanced Run Length Limited

216)     ARM       Advanced RISC Machine (processor) +

217)     Annotated Reference Manual +

218)     Asynchronous Response Mode

219)     ARMA      Association of Records Managers and Administrators

220)    ARP       Address Resolution Protocol [Novell]

221)     ARPANET   Advanced Research Projects Agency Network

222)    ARPL      Adjust Requested Privilege Level

223)    ARTA      Apple Real Time Architecture

224)    ARTIC     A Real-Time Interface Coprocessor [IBM]

225)    ARTS      Asynchronous Remote Takeover Server

226)    .ARTS     Cultural Groups (Domain Name) [Internet]

227)    ARTT      Asynchronous Remote Takeover Terminal

228)    ARQ       Automatic Repeat Request

229)    ARU       Audio Response Unit

230)    AS        Autonomous System [Internet]

231)     ASAI      Adjunct Switch Application Interface [AT&T]

232)    ASAP      As Soon As Possible +

233)    Automatic Switching And Processing

234)    AS3AP     ANSI SQL Standard Scalable and Portable

235)    ASB       Advanced System Buffering [Intel]

236)    .ASC      ASCII text (file name extension)

237)    ASCC    * Automatic Sequence Controlled Calculator [IBM]

238)    ASCII     American Standard Code for Information Interchange

239)    ASD             Automatic Skip Driver [Microsoft]

240)    ASF       Active/Advanced Streaming Format [Microsoft]

241)     ASIC      Application-Specific Integrated Circuit

242)    ASIT      Advanced Security and Identification Technology

243)    ASL       Adaptive Speed Levelling

244)    ASLM      Apple Shared Library Manager [Macintosh]

245)    .ASM      Assembler Source Language (file name extension)

246)    ASMP      Asymmetric Multprocessing

247)    ASN       Abstract Syntax Notation + Autonomous System Number

248)    ASO       Automated Systems Operations

249)    ASP       Active Server Page [Microsoft] +

250)    Application/Authorized Service Provider +

251)     Association of Shareware Professionals

252)    .ASP      Active Server Page (file name extension)

253)    ASPI      Advanced SCSI Programming Interface [Adaptec]

254)    ASPS      Advanced Signal Processing System

255)    ASR       Address Space Register + Automatic Send-Receive +

256)    Automatic Speech Recognition

257)    AST       AST Research, Inc. (named from first initials of

258)    the founders: Albert Wong, Safi Qureshey, Thomas Yuen)

259)    AS/U      Advanced Server for Unix

260)    ASYNC     Asynchronous

261)     AS/400    Application System/400 [IBM]

262)    AT        Advanced Technology + Attention

263)    ATAPI     Advanced Technology Attachment Packet Interface

264)    ATDP      Attention Dial Pulse

265)    ATDT      Attention Dial Tone

266)    ATE       Automated Test Equipment

267)    ATG       Advanced Technology Group

268)    ATH       Attention Hang-Up (Modem command)

269)    ATL       Active Template Library

270)    ATM       Adobe Typeface Manager + Air Traffic Management +

271)     Asynchronous Transfer Mode + Automated Teller Machine

272)    ATPS      AppleTalk Printing Services [Macintosh]

273)    ATR       Automatic Terminal Recognition

274)    ATS       Administrative Terminal System +

275)    Apple Terminal Services

276)    AT&T      American Telephone and Telegraph

277)    ATTN      Attention

278)    ATTRIB    Attribute (also ATR)

279)    ATX       Advanced Technology Extended [Intel]

280)    ATZ       Attention Restore configuration profile from nonvolatile RAM (Modem command)

281)     .AU       Audio (file name extension)

282)    AUDIT     Automated Data Input Terminal

283)    AUI       Attachment/Autonomous Unit Interface

284)    AUP       Acceptable Use Policy [Internet]

285)    AUTO      Automatic

286)    AUTOEXEC  Automatic Execution

287)    AUX       Auxiliary + (First Serial Port)

288)    AV        Audio/Video + Audiovisual + Authenticity Verification

289)    AVA       Audio Visual Authoring [IBM]

290)    AVC       Audio Visual Connection [IBM]

291)     AVD       Alternating Voice and Data

292)    AVG       Average

293)    AVI       Audio Visual Interleave [Microsoft]

294)    AVP       Attribute-Value Pair

295)    AVR       Automatic Voice Recognition

296)    AVT       Applied Voice Technology

297)    AWE       Advanced Wave Effects [Creative Lab]

298)    AWG       American Wire Gage

299)    AWK       (Unix language named after its authors...

300)    Al Aho, Peter Weinberger and Brian Kernighan)

301)     AWS       Advanced Workstations and Systems (group) [IBM]

302)    AWT       Abstract Window Toolkit [Java]

303)    AX        Architecture Extended + Automatic Transmission

B...

304)    BA                Bell Atlantic (company)

305)    BACP      Bandwidth Allocation Control Protocol

306)    BAK       Binary Adaptation Kit [Microsoft]

307)    .BAK      Backup (file name extension)

308)    BAL       Basic Assembly Language

309)    BALUN     Balanced Unbalanced (device)

310)     BAM       Boyan Action Module

311)      BAPI      Business Application Programming Interface [SAP]

312)     BARTS     Bell Atlantic Regional Timesharing

313)     .BAS      Basic Language (file name extension)

314)     BASH      Bourne Again Shell [Unix]

315)     BASIC     Beginner's All-purpose Symbolic Instruction Code

316)     BASM      Built-In Assembler

317)     BAT       Block Address Translation

318)     .BAT      Batch Processing (file name extension)

319)     B2B             Business-To-Business

320)    BBS       Bulletin Board System

321)     B2C             Business To Consumer

322)    BCC       Block Check Character

323)    BCC:      Blind Carbon Copy

324)    BCD       Binary Coded Decimal

325)    B-CHANNEL Bearer Channel

326)    BCL       Batch Command Language

327)    BCN       Beacon

328)    BCNF          Boyce-Codd Normal Form

329)    BCP       Best Current Practice + Bulk Copy Program

330)    BCPL      Basic Computer Programming Language

331)     BCR       Byte Count Register

332)    BCS       Bar Code Sorter

333)     BDA       Bios Data Area

334)    BDC       Backup Domain Controller

335)     BDE       Borland Database Engine [Borland]

336)    BDLS      Bidirectional Loop Switching

337)     BDOS      Basic Disk Operating System

338)    BDR       Bus Device Request

339)    BDSL      (See DSL)

340)    BE        Below or Equal

341)     B2E       Business To Employees

342)    BECN      Backward Explicit Congestion Notification

343)    BEDO      Burst Extended Data Out

344)    BEEP           Blocks Extensible Exchange Protocol

345)    BEL       Bell

346)    BELLCORE  Bell Communications Research

347)    BER       Basic Encoding Rules + Bit Error Rate

348)    BERT      Bit Error Rate Test/Tester

349)    BF        Bad Flag

350)    B/F       Background/Foreground

351)     .BFC      Briefcase (file name extension) [Microsoft]

352)    BFF       Binary File Format [IBM]

353)     BFT       Binary File Transfer

354)    BFTP      Batch FTP

355)     BGA       Ball Grid Array

356)    BGCOLOR   Background Color [HTML]

357)     BGE       Branch if Greater or Equal

358)    .BGI      Borland Graphic Interface (file name extension)

359)    BGP       Border Gateway Protocol

360)    BGT       Branch if Greater Than

361)     BHI       Branch if Higher

362)    BHIS      Branch if Higher or Same

363)    BI        Binary Input

364)    .BIB      Bibliography (file name extension)

365)    BiDi      Bi-Directional

366)    BIFET     Bipolar Field Effect Transistor

367)    BIFF      Binary Interchange File Format

368)    BIM       Beginning of Information Marker

369)    .BIN      Binary (file name extension)

370)    BINAC   * Binary Automatic Computer

371)     BIND      Berkeley Internet Name Domain

372)    BINHEX    Binary Hexadecimal

373)     BIOS      Basic Input/Output System

374)    BIS       Business Information System

375)     BISDN     Broadband Integrated Services Digital Network

376)    BIST      Built-In Self-Test

377)     BiSYNC    (See BSYNC)

378)    BIT       Binary Digit

379)    BITNET    Because It's Time Network

380)    BITNIC    Bitnet Network Information Center

381)     BIU       Bus Interface Unit

382)    BIW       Business Intelligence Warehouse [SAP]

383)    BIX       Byte Information Exchange (BBS)

384)    .BIZ      Businesses (Domain Name) [Internet]

385)    .BK!      Backup (file name extension) [WordPerfect]

386)    .B~K      Backup (file name extension)

387)    BKSP      Backspace

388)    BL        Backlit + Bit Line

389)    BLAST     Blocked Asynchronous Transmission (protocol)

390)    [Communications Research Group]

391)     .BLD      BASIC Bload Graphics (file name extension)

392)    BLE       Branch if Less or Equal

393)    BLER      Block Error

394)    BLK       Block

395)    BLMC      Buried Logic Macrocell

396)    BLOB      Binary Large Object

397)    BLOS      Branch if Lower Or Same

398)    BMI       Branch if Minus

399)    BMIC      BusMaster Interface Controller [Intel]

400)    BMP       Basic Mapping Support + Batch Message Processing Program

401)     .BMP      Bitmap (file name extension) [Paintbrush Format]

402)    BNC       Bayonet Neill-Concelman (connector used with

403)    coaxial cable invented by Mr. Neill-Concelman)

404)    BNE       Branch if Not Equal

405)    BNF       Backus-Naur Form (also Backus-Normal Form) [developed by

406)    John Backus and Peter Naur]

407)    BNS       Backbone Network Service

408)    BO        Binary Output

409)    BOA             Basic Object Adapter

410)     BOB       Break-out Box

411)      BOC       Basic Operator Console

412)     BOF       Beginning Of File

413)     BOM       Basic Online Memory [IBM] + Beginning Of Message

414)     BOND      Bandwidth On Demand

415)     BOOTP     Bootstrap Protocol [Internet]

416)     BOPS      Billion Operations Per Second

417)     BORPQU    Borland Pro Quattro

418)     BORQU     Borland Quattro

419)     BOS       Basic Operating System

420)    BOT       Beginning Of Table + Beginning of Tape + Robot

421)     BP        Base Pointer

422)    BPB       BIOS Parameter Block

423)    BPDU      Bridge Protocol Data Unit

424)    BPI       Bits Per Inch

425)    BPL       Branch if Plus

426)    BPP       Bits Per Pixel

427)    BPR             Business Process Re-engineering [Linux]

428)    BPS       Bits Per Second + Bytes Per Second

429)    BPSK      Binary Phase Shift Keying

430)    BR        Bad Register

431)     BRGC      Binary Reflected Gray Code

432)    BRI       Basic Rate Interface + Brain Response Interface

433)    BS        Backspace

434)    BSAM      Basic Sequential Access Method

435)    BSC       Binary Synchronous Communication

436)    .BSC      Boyan Script (file name extension) [Boyan Communications]

437)    BSCS      Bachelor of Science (Degree) in Computer Science

438)    BSD       Berkely Software/Standard Distribution

439)    BSF       Bit Scan Forward

440)    BSI       British Standards Institute

441)     BSM       Basic Storage Module [IBM]

442)    BSP       Bulk Synchronous Parallelism

443)    BSR       Bit Scan Reverse

444)    BS-RAM    Burst Static RAM

445)    BSS       Block Started by Symbol

446)    BSY       Busy

447)    BSYNC     Binary Synchronous Communications (protocol)

448)    BT        Bit Test

449)    BTAM      Basic Telecommunications Access Method [IBM]

450)    BTB       Branch Target Buffer

451)     BTC       Bit Test and Complement

452)    BTI              Business Type Identifier

453)    BTOA      Binary To ASCII

454)    BTP       Batch Transfer Program

455)    BTR       Bit Test and Reset

456)    BTS       Bit Test and Set

457)    BU        Branch Unit

458)    BUBL      Bulletin Board for Libraries [Janet]

459)    BUF       Buffer

460)    BUS       Broadcast and Unknown Server

461)     BVH       Base Video Handler

462)    BWM       Block-Write Mode

463)    B2X       Binary To Hexadecimal [REXX]

464)    BYTE      Binary Element String

C

465)    C         C Programming Language

466)    .C        C source code (file name extension) [C]

467)    CA        Collision  Avoidance

468)    CAB             Compressed Application Binary [Microsoft]

469)    .CAB      Cabinet (file name extension) [Microsoft]

470)    CAD       Computer Aided Design

471)     CADD      Computer Aided Design and Drafting

472)    CADE      Client/server Application Development Environment

473)    CAE       Client Application Enabler + Common Applications

474)    Environment + Computer Aided Engineering

475)    CAEN      Chemically Assembled Electronic Nanocomputer

476)    CAEX      Computer Aided Exploration

477)    CAG       Column Address Generator

478)    CAI       Computer Aided Instruction

479)    CAIRN     Collaborative Advanced Interagency Research Network

480)    CAL       Calendar + Client Access License +

481)     Computer Aided Learning

482)    CALS      Computer-Aided Acquisition in Logistic Support

483)    CAM       Common Access Method + Computer Aided Manufacturing +

484)    Contents Addressable Memory

485)    CAN       Cancel

486)    CANBUS    Conroller Area Network Bus

487)    CAP       Carrierless Amplitude and Phase-Modulation +

488)    Central Arbitration Point +

489)    Communication Application Platform +

490)    Competitive Access Provider +

491)     Computer Aided Publishing

492)    .CAP      Capture (file name extension)

493)    CAPD      Computing To Assist Persons With Disabilities [Johns

494)    Hopkins University]

495)    CAPE      Concurrent Art-to-Product Environment

496)    CAPS      Capitals (Upper Case Letters) +

497)    Cassette Programming System

498)    CAR             Committed Access Rate [Cisco]

499)    CARL      Colorado Alliance of Research Libraries [Internet]

500)    CAS       Column Address Select/Strobe +

501)     Communications Application Specification +

502)    Computer Aided Styling

503)    CASE      Computer Aided Software Engineering

504)    CASL      Crosstalk Application Scripting Language [DCA]

505)    CASS      Computer Assisted Search Service

506)    CASSIS    Classified and Search Support Information System

507)    CAT       Computer Adaptive Test + Computer Aided Testing +

508)    Computer Aided Tomography +

509)    Computer Aided Transcription + Concatenate

510)     .CAT      Catalog (file name extension)

511)      CATS      Computer Assisted Training System

512)     CAT SCAN  Computerized Axial Tomography Scan

513)     CATV      Community Antenna Television (this was the original

514)     name for what is now known as Cable TV)

515)     CAU       Controlled Access Unit

516)     CAV       Constant Angular Velocity

517)     CAVE      Computer Automatic Virtual Environment

518)     CBC       Cipher Block Chaining

519)     CBCR      Channel Byte Count Register

520)    CBDS      Connectionless Broadband Data Service

521)     CBEMA     Computer and Business Equipment

522)    Manufacturers Association

523)    CBGA      Ceramic Ball Grid Array

524)    CBI       Computer Based Instruction\Instrumentation

525)    CBL       Computer Based Learning

526)    .CBL      COBOL source code (file name extension)

527)    CBMS      Computer-Based Mail System

528)    CBR       Case Based Reasoning + Constant Bit Rate

529)    CBT       Computer Based Training

530)    CBW       Convert Byte to Word

531)     CBX       Computer-Controlled Branch Exchange

532)    CC        Cluster Controller

533)     CC:       Carbon Copy

534)    CCD       Charged-Coupled Device

535)     CCFT      Cold Cathode Fluorescent Tube

536)    CCI       Common Client Interface

537)     CCIE      Cisco Certified Internetwork Expert [Cisco]

538)    CCITT     Comite Consultatif International Telegraphique et

539)    Telephonique/ Consultative Committee for International

540)    Telegraph and Telephone

541)     CCL       Connection/Cursor Control Language

542)    CCM       Corba Component Mode

543)    CCP       Certified Computing Professional +

544)    Console Command Processor

545)    CCS       Common Command Set + Common Communications Services +

546)    Common Communications Support +

547)    Continuous Composite Servo

548)    .CCS      Color Calibration System (file name extension)

549)    CCSD      Cellular Circuit-Switched Data

550)    CCTLD       Country Code Top-Level Domain

551)     CD        Carrier Detect + Change Directory +

552)    Collision Detection + Color Display + Compact Disk

553)     C/D       Control Data

554)    C2D       Character To Decimal [REXX]

555)     CDA       Compound Document Architecture [DEC]

556)    .CDA      CD Audio Track (file name extension)

557)     CDBT      Compact Disk-Based Training

558)    CDC       Control Data Corporation

559)    CD_CHRDY  Card Channel Ready [IBM]

560)    CD-DA     Compact Disk -Digital Audio

561)     CDDI      Copper Distributed Data Interface

562)    CDE       Common Desktop Environment + Complex Data Entry

563)    CD-E      Compact Disk - Erasable

564)    CDF       Channel Definition Format

565)    .CDF      Comma Delimited Format (file name extension)

566)    CDFS      Compact Disc File System [Microsoft]

567)    CD+G      Compact Disk plus Graphics

568)    CD-I      Compact Disk - Interactive

569)    CDIA      Certified Document Imaging Architect

570)    CDL       Computer Design Language

571)     CDMA      Code Division Multiple Access

572)    CDMF      Commercial Data Masking Facility [IBM]

573)     CD-MO     Compact Disk - Magneto Optical

574)    CDOS      Concurrent Disk Operating System

575)     CDP     * Certificate In Data Processing (First certification

576)    for Computer Professionals)

577)     CDPD      Cellular Digital Packet Data

578)    CDR       Call Detail Record + Call Detail Recording +

579)    Common Data Representation

580)    .CDR           CorelDRAW (file name extension) [Corel]

581)     CD-R      Compact Disk - Recordable

582)    CDRAM     Cache DRAM

583)    CD-RDx    Compact Disk - Read Only Memory Data Exchange Standard

584)    CDRL      Contract Data Requirements List

585)    CD-ROM    Compact Disk - Read Only Memory

586)    CD-RTOS   Compact Disk - Real Time Operating System

587)    CD-RW     Compact Disk - Rewritable

588)    CDS       Current Directory Structure

589)    CDSA      Common Data Security Architecture

590)    CDSL      (See DSL)

591)     .CDT      Corel Draw Template (file name extension)

592)    CD-V      Compact Disk - Video

593)    CD-WO     Compact Disk - Write Once

594)    .CDX      Compound Index (file name extension) [Fox Pro]

595)    CD-XA     Compact Disk - Extended Architecture

596)    CE        Cache Enable + Chip Enable + Collision Elimination +

597)    Convert Enable

598)    CEG       Continuous Edge Graphics

599)    CEI       Conducted Electromagnetic Interference

600)    CELP      Card Edge Low Profile (socket) [Intel]

601)     CEMS      Constituent Electronic Mail System

602)    CEOP      Conditional End Of Page

603)    CER       Canonical Encoding Rules

604)    CERN      The European Particle Physics Laboratory (initials

605)    originally from Conseil Europien pour la Recherche

606)    Nucliaire)

607)    CERT      Computer Emergency Response Team

608)    CFB       Cipher Feedback + Configurable Function Block

609)    .CFG      Configuration (file name extension)

610)     CFM       Code Fragment Manager [Macintosh] +

611)      Cubic Feet Per Minute

612)     CFML      ColdFusion Markup Language

613)     CFR       Computerized Facial Recognition

614)     CFS       Caching/Common File System

615)     CFV       Call For Votes [Bitnet]

616)     CG        Control Gate

617)     CGA       Color Graphics Adapter

618)     CGE       Common Graphics Environment

619)     CGI       Computer Generated Images + Computer Graphics Interface

620)    CGI-BIN   Common Gateway Interface - Binary

621)     .CGM      Computer Graphics Metafile (file name extension) +

622)    Graph (file name extension) [Lotus 1-2-3] [LDC]

623)    CGS       Continuous-Grain Silicon

624)    CHAP      Challenge-Handshake Authentication Protocol

625)    CHAR      Character

626)    CHAT      Conversational Hypertext Access Technology [Internet]

627)    CHCK      Channel Check

628)    CHCP      Change Code Page

629)     CHDIR     Change Directory

630)    CHFN      Change Finger [Unix]

631)     CHGRP     Change Group

632)    CHIPS     Clearinghouse Interbank Payments System

633)    .CHK      CHKDSK (file name extension)

634)    CHKDSK    Check Disk

635)    CHMOD     Change Mode

636)    CHOWN     Change Owner

637)    CHP       Chapter

638)    CHR       Character

639)    CHRP      Common Hardware Reference Platform

640)    CHS       Cylinder Head Sector

641)     CHTML     Compressed HTML

642)    CI        Component Interface

643)    CIA       Current Instruction Address

644)    CIAC      Computer Incident Advisory Capability

645)    CICS/VS   Customer Information Control System/

646)    Virtual Storage [IBM]

647)    CID       Charge-Injection Device +

648)    Configuration/Installation/Distribution

649)    CIDR      Classless Inter-Domain Routing

650)    CIF       Common Interchange/Intermediate Format +

651)     Crystallographic Information File +

652)    Customer Information Feed

653)    CIFS      Common Internet File System

654)    CIM       Common Information Model +

655)    CompuServe Information Manager +

656)    Computer Integrated Manufacturing

657)    CIO       Chief Information Officer

658)    CIOCS     Communication Input/Output Control System

659)    CIP       Command Interface Port + Common Indexing Protocol

660)    CIR       Committed Information Rate

661)     CIRC      Circular Reference +

662)    Cross-Interleaved Reed-Solomon Code

663)    CIS       Card Information Structure + Client Information System +

664)    CompuServe Information Service +

665)    Computer Information Systems + Contact Image Sensor +

666)    Customer Information System

667)    CISC      Complex Instruction Set Computing

668)    CIT       Computer-Integrated Telephony

669)    CIVR      Computer and Interactive Voice Response

670)    CIW             Certified Internet Webmaster

671)     CIX       Commercial Internet Exchange +

672)    Compulink Information Exchange

673)    CJLI      Command Job Language Interpreter

674)    CKD       Count Key Data (device)

675)    CLAR      Channel Local Address Register

676)    CLASS     Client Access to Systems and Services +

677)    Cooperative Library Agency for Systems and Services +

678)    Custom Local-Area Signaling Services

679)    CLC       Clear Carry Flag

680)    CLD       Clear Direction Flag

681)     CLEC      Competitive Local Exchange Carrier

682)    CLI       Call-Level Interface + Clear Interrupt Flag +

683)    Client Library Interface + Command Line Interface

684)    CLIB      C Library

685)    CLID      Calling Line Identification

686)    CLIST     Command List

687)    CLK       Clock

688)    CLNP      Connectionless Network Protocol

689)    CLOS      Common Lisp Object System

690)    CLP       Cell Loss Priority + Constraint Logic Programming

691)     .CLP      Clipboard (file name extension) [Windows]

692)    CLS       Clear Screen

693)    CLSID     Class Identifier

694)    CLTP      Connectionless Transport Protocol

695)    CLTS      Clear Task Switch Flag

696)    CLTV      Constant Linear Time Velocity

697)    CLUI      Command Line User Interface

698)    CLUT      Color Look-Up Table

699)    CLV       Constant Linear Velocity

700)    CM        Centimeter + Control Mark + Corrective Maintenance

701)     CMA       Concert Multi-thread Architecture

702)    CMC       Common Mail Calls + Common Messaging Calls +

703)    Communication Management Configuration +

704)    Complement Carry Flag +

705)    Computer-Mediated Communication [Internet]

706)    CMD       Circuit Mode Data

707)    .CMD      Command (file name extension)

708)    CMF       Creative Music Format

709)    CNIDR     Clearinghouse for Network Information and

710)     Discovery and Retrieval [Internet]

711)      CMIP      Common Management Information Protocol

712)     CMIS      Common Management Information Services/System

713)     CML       Chemical Markup Language + Conceptual Modelling Language +

714)     Computer Managed Learning + Current Mode Logic

715)     CMM       Capability Maturity Model

716)     CMMS      Computerized Maintenance Management Software

717)     CMMU      Cache/Memory Management Unit [Motorola]

718)     CMOS      Complementary Metal-Oxide Semiconductor

719)     CMOV      Conditional Move

720)    CMP       Compare + Computer

721)     CMPS      Compare word String

722)    CMS       Code Management System + Compiler Monitor System +

723)    Conversation Monitor System

724)    CMVC      Configuration Management Version Control [IBM]

725)    CMW       Compartmented Mode Workstation

726)    CMY       Cyan-Magenta-Yellow (color model)

727)    CMYK      Cyan-Magenta-Yellow-Black (color model)

728)    CNA       Certified NetWare/Network Administrator

729)    CNAPS     Co-Processing Node Architecture for Parallel Systems

730)    CNC       Computerized Numerical Control

731)     CNE       Certified NetWare Engineer

732)    .CNF      Configuration (file name extension)

733)     CNG       Calling (tone)

734)    CNI       Certified Novell Instructor [Novell]

735)     CNIDR     Clearinghouse for Networked Information and

286           Discovery and Retrieval [Internet]

736)    CNN       Composite Network Node

737)     CNR       Carrier to Noise Ratio

738)    CNSS      Core Nodal Switching Subsystem [Internet]

739)    .CNT      Contents (file name extension)

740)    CNV       Conventional (pertaining to Memory)

741)     CNVT      Convert

742)    CNX       Certified Network Expert

743)    CO        Central Office + Command Output + Convert Out

744)    COAST     Card On A Stick (module)

745)    COAX      Coaxial Cable

746)    COB       Chip-On-Board

747)    .COB      COBOL source code (file name extension)

748)    COBOL     Common Business-oriented Language (See HLL)

749)    .COD      Code List (file name extension)

750)    CODASYL * Conference on Data System Languages (Group that

751)     designed COBOL)

752)    CODE      Client-Server Open Development Environment

753)     CODEC     Coder/Decoder + Compression/Decompression

754)    COEM      Commercial Original Equipment Manufacturer

755)     COFF      Common Object File Format [Unix]

756)    COGO      Coordinate Geometry (Programming Language)

757)     COL       Collision + Computer Oriented Language

758)    COLD      Computer Output to Laser Disk

759)    COLL      Collision

760)    COM       Component Object Model [Microsoft] +

761)     Computer Output Microfilm

762)    .COM      Command (file name extension) +

763)    Commercial Business (Domain Name) [Internet]

764)    COM1      First serial Port (asynchronous port)

765)    COM2      Second serial Port

766)    COM3      Third serial Port

767)    COM4      Fourth serial Port

768)    COMDEX    Computer Dealers Exposition

769)    COMET     Cornell Macintosh Terminal Emulator

770)    COMM      Communications

771)     COMP      Compare

772)    COMP.     Computers [USENET Newsgroup Category]

773)     COMSAT    Communications Satellite Corporation

774)    CON       Console (includes Keyboard and Screen)

775)     COND      Condition

776)    CONFIG    Configuration

777)     CONS      Connection-Oriented Network Service

778)    CONTONE   Continuous Tone

779)    .COOP        Cooperatives-Business (Domain Name) [Internet]

780)    COPICS    Communications Oriented Production Information

781)     and Control System [IBM]

782)    COR       Common Object Runtime

783)    CORBA     Common Object Request Broker Architecture

784)    CoREN     Corporation for Research and Enterprise Network

785)    COS       Compatible Operating System

786)    COSE      Combined Office Standard Environment +

787)    Common Open Software/Systems Environment

788)    COSMIC    Computer Software Management and Information

789)    Center [NASA]

790)    COSMOS    Computer System for Mainframe Operations

791)     COSS      Common Object Services Specification

792)    COTS      Commercial Off-The-Shelf (software)

793)    CP        Copy Protected

794)    CPA       Certified Public Accountant + Cost Per Action

795)    CPAN          Comprehensive Perl Archive Network

796)    CPC       Constant Point Calculation + Cost Per Click

797)    CPCS      Check Processing Control System [IBM]

798)    CPE       Central Processing Element +

799)    Customer Premises Equipment +

800)    Customer Provided Equipment

801)     .CPE      Cover Page (file name extension)

802)    CPFR           Collaborative Planning, Forecasting and Replenishment

803)    CPG       Clock Pulse Generator

804)    CPI       Characters Per Inch + Clock Per Instruction +

805)    Common Programming Interface [IBM]

806)    .CPI      Code Page Information (file name extension) [MS-DOS]

807)    CPI-C     Common Programming Interface for Communications [IBM]

808)    CPIO      Copy In and Out [Unix]

809)    CPL       Current Privilege Level

810)     .CPL      Control Panel (file name extension)

811)      CPLD      Complex Programmable Logic Device

812)     CPM       Critical Path Method

813)     CP/M      Control Program for Microcomputers [Digital Research]

814)     CPS       Characters Per Second + Cycles Per Second

815)     CPT       Command Pass Through

816)     CPU       Central Processing Unit

817)     CPW       Commercial Processing Workload [IBM]

818)     CR        Carriage Return

819)     CRAM      Cyberspatial Reality Advancement Movement

820)    CRAYON    Create Your Own Newspaper

821)     CRC       Cyclic Redundancy Check

822)    .CRD      Cardfile (file name extension) +

823)    Chord (music file name extension)

824)    CREN      Computer Research Education Network +

825)    Corporation for Research and Education Networking

826)    CRF       Cable Retransmission Facility + Cross Reference File

827)    CRI       Color Reproduction Indices

828)    CR/LF     Carriage Return/Line Feed

829)    CRM       Customer Relationship Management

830)    CROM      Control Read Only Memory

831)     CRT       Cathode Ray Tube

832)    CRTC      CRT Controller

833)    CRUD      Create, Retrieve, Update, Delete

834)    CS        Chip Select + Clear to Send + Code Segment

835)    C/S       Client/Server

836)    CSA       Calendaring and Scheduling API [IBM]

837)    CSAR      Channel System Address Register

838)    CSCW      Computer Supported Cooperative Work

839)    CSD       Circuit-Switched Data +

840)    Computer Services Department +

841)     Corrective Service Diskette [IBM]

842)    CSDS      Circuit Switched Data Service

843)    CSE       Certified System Engineer

844)    CSFI      Communication Subsystem For Interconnection

845)    CSG       Constructive Solid Geometry +

846)    Consulting Services Group [Lotus]

847)    CSI       Command Sequence Introducer + CompuServe Incorporated

848)    CSID      Call Subscriber ID

849)    CSL       Computer Sensitive Language

850)    CSLIP     Compressed Serial Line Interface Protocol [Internet]

851)     CSM       Code Set Map (file) + Communications Services Manager

852)    CSMA/CA   Carrier Sense Multiple Access/with Collision Avoidance

853)    CSMA/CD   Carrier Sense Multiple Access/with Collision Detection

854)    CSMS      Customer Support Management System

855)    CSN       Card-Select Number

856)    CSNET     Computer Science Network

857)    CSO       Central Services Organization

858)    CSP       Certified Systems Professional +

859)    Chip-Scale Packaging +

860)    Commercial Service Provider +

286           Commercial Subroutine Package +

861)     CompuCom Speed Protocol [CompuCom] +

862)    Communicating Sequential Processes +

863)    Cross System Product [IBM]

864)    CSPDN     Circuit Switched Public Data Network

865)    CSRAM     Custom Static RAM

866)    CSS     * Continuous System Simulator (Language)

867)    CSS       Cascading Style Sheet [Microsoft] +

868)    Contact Start-Stop + Content Scrambling System

869)    CSSM      Client-Server Systems Management [IBM]

870)    CS/SS     Card Service/Socket Service

871)     CSTA      Computer-Supported Telephony Applications

872)    CSU       Channel Service/Switching Unit

873)    CSV       Circuit-Switched Voice +

874)    Comma-Separated Value/Variable +

875)    Common Services Verbs (interface) [Microsoft]

876)    C&T       Chips and Technologies

877)    CTB       Cipher Type Byte

878)    CTC       Channel To Channel

879)    CTCP      Client-To-Client Protocol

880)    CTI       Computer-Telephony Integration

881)     CTOS      Computerized Tomography Operating System +

882)    Convergent Technologies Operating System

883)    CTPA      Coax-to-Twisted-Pair Adapter

884)    CTRCO   * Calculating,Tabulating,Recording Company (The name of

885)    this company was changed to "International Business

886)    Machines" by Thomas J. Watson, Sr.)

887)    CTRL      Control

888)    CTS       Clear To Send + Computer Telephony Solution [IBM] +

889)    Customer Telephone System

890)    CTSS    * Compatible Time Sharing System

891)     CUA       Common User Access [IBM]

892)    CUB       Cursor Backward

893)    CUD       Cursor Down

894)    CUE       Custom Updates and Extras (card) [Egghead Software]

895)    CUF       Cursor Forward

896)    CUI       Character-Oriented User Interface + Common User Interface [IBM]

897)    CUP       Cursor Position

898)    CUPID     Completely Universal Processor I/O Design [AST]

899)    .CUR      Cursor (file name extension)

900)    CUSIP     Committee for Uniform Security Identification Procedures [U.S. Treasury]

901)     CUT       Control Unit Terminal

902)    CUTE      Clarkston University Terminal Emulator

903)    CUU       Cursor Up

904)    CVF       Compressed Volume File

905)    CVGA      Color Video Graphics Array

906)    CVIA      Computer Virus Industry Association

907)    CVT       Convert

908)    CVW       CodeView for Windows

909)    CWA            Competitive Web Analysis

910)     CWD       Convert Word to Double Word + Change Working Directory [Internet]

911)      CWIS      Campus Wide Information Service/System [Internet] +

912)     Community Wide Information Service/System [Internet]

913)     C2X       Character To Hexadecimal [REXX]

914)     CXML         Commerce Extensible Markup Language

915)     CYL       Cylinder

916)     CYMK      Cyan-Yellow-Magenta-Black (color model)

D...

917)     D/A       Digital to Analog

918)     DAA       Data Access Arrangement +

919)     Decimal Adjust for Addition

920)    DAB       Digital Audio Broadcasting

921)     DAC       Data Acquisition and Control + Device Access Code +

922)    Digital to Analog Converter +

923)    Dual Attachment Concentrator

924)    DACL      Discretionary Access Control List

925)    DAD       Desktop Application Director [Borland]

926)    DAE       Digital Audio Extraction

927)    DAI       Distributed Artificial Intelligence

928)    DAL       Data Access Language [Apple Computer] +

929)    Disk Access Lockout

930)     DAM       Data Acquisition and Monitoring

931)     DAMPS     Digital AMPS

932)    DAO       Data Access Object [Microsoft]

933)    DAP       Data Access Protocol [DEC] +

934)    Developer Assistance Program

935)    DAPIE     Developers Application Programming Interface Extensions

936)    DARI      Database Application Remote Interface [IBM]

937)    DARMS     Digital Alternate Realization of Musical Symbols

938)    DART      Digital Audio Reconstruction Technology

939)    DAS       Decimal Adjust for Subtraction +

940)    Dual-Attached Station

941)     DASD      Direct Access Storage Device [IBM]

942)    DAT       Digital Audio Tape + Disk Array Technology

943)    .DAT      Data (file name extension)

944)    DATACOM   Data Communications

945)    DAV       Digital Audio-Video

946)    DAVIC     Digital Audio-Visual Council

947)    dB        Decibel

948)    DB        Data Base + Data Buffer + Device Bay

949)    dBA       Adjusted Decibel

950)    .dba             Date Book Archive (file name extension) [Palm]

951)     DBC       Device Bay Controller

952)    DBCS      Delivery Bar Code Sorter + Double-Byte Character Set

953)    .DBF      Database (file name extension)

954)    DBIS      Dun & Bradstreet Information Services

955)    DBM       Data Base Manager

956)    DBMS      Data Base Management System

957)    DBR       DOS Boot Record

958)    DBS       Data Base Server +

959)    Direct (to home) Broadcast (satellite) System

960)    DBV       Digital Broadcast Video

961)     DBWR        Database Writer [Oracle]

962)    DB2       Database 2

963)    DC        Data Collection + Data Communication + Data Control +

964)    Device Control + Direct Current

965)    D2C       Decimal To Character [REXX]

966)    DCA       Digital Communications Associates +

967)    Document Content Architecture [IBM]

968)    DCAF      Distributed Console Access Facility [IBM]

969)    DCAM      Digital Camera + Direct Chip Attach Module

970)    DCB       Device Control Block + Disk Coprocessor Board [Novell]

971)     DCC       Data Country Code + Digital Command Control +

972)    Digital Compact Cassette + Direct Cable/Client Connection

973)    + Display Combination Code

974)    DCD       Data Carrier Detect

975)    DCE       Data Circuit-Terminating Equipment +

976)    Data Communications Equipment +

977)    Distributed Computing Environment [OSF] +

978)    Distributed Computing Equipment

979)    DCED      Distributed Computing Environment Daemon

980)    DCF       Data Communication Facility [IBM] +

981)     Data Compression Facility +

982)    Data Count Field [IBM] +

983)    Driver Configuration File [Lotus]

984)    D-CHANNEL Data Channel

985)    DCI       Display Control Interface

986)    DCL       Data Control Language + Declaration +

987)    DEC Command Language [DEC] +

988)    Device Clear + Digital Control Logic +

989)    Digital Command Language [Digital]

990)    DCML         Dynamic Configuration Markup Language

991)     DCOM      Distributed Component Object Model

992)    DCP             Device Control Protocol +

993)    Digital Light Processing [TI]

994)    DCS       Data Collection System + Data Control System +

995)    Desktop Color Separation + Distributed Control System

996)    DCT       Discrete Cosine Transform

997)    .DCT      Dictionary (file name extension)

998)    DCU       Data-Cache Unit

999)    DD        Day + Digital Display + Double Density

1000) DDA       Distributed Data Access + Domain-Defined Attribute

1001)  DDB       Device Dependent Bitmap + Device Descriptor Block

1002) DDC       Digital Data Channel [VESA] + Display Data Channel

1003)  DDCMP     Digital Data Communications Message Protocol [DEC]

1004) DDC1      Display Data Channel One

1005)  DDCS      Distributed Database Connection Services [IBM]

1006) DDD       Direct Distance Dialing

1007)  DDE       Direct Data Entry + Dynamic Data Exchange [Microsoft]

1008) DDEML     Dynamic Data Exchange Manager Library [Microsoft]

1009) DDF       Display Data Channel + Dynamic Data Formatting [IBM]

1010)  DDI       Device Driver Interface +

1011)   Digital Document Interchange + Direct Dial In

1012)  DDK       Device Driver Kit [Microsoft Windows]

1013)   DDL       Data Definition Language + Data Description Language

1014)  DDM       Distributed Data Management

1015)   DDN       Defense Data Network

1016)  DDNS      Dynamic Domain Naming System

1017)   DDP       Datagram Delivery Protocol +

1018)  Distributed Data Processing

1019)  DDR       Dynamic Document Review [Symantec]

1020) DDR-SDRAM Double Data Rate-SDRAM

1021)  DDS       Data Description Specification +

1022) Digital Dataphone Service [AT&T] + Design Data Sheet +

1023)  Digital Data Storage + Distributed Database Services

1024) DDX       Digital Data Exchange

1025)  DE        Device End

1026) DEA       Data Encryption Algorithm

1027)  DEC       Decrement + Device Clear + Digital Equipment Corporation

1028) DECNET    Digital Equipment Corporation Networking (protocol)

1029) DEF       Desktop Functional Equivalent [Compaq]

1030)  .DEF      Definitions + Defaults (file name extensions)

1031)   DEFRAG    Defragment

1032)  DEK       Data Encryption Key

1033)  DEL       Delete

1034)  DELSTR    Delete String [REXX]

1035)  .DEM      Demonstration (file name extension)

1036)  DEN            Directory Enabled Network +

1037)  Document Enabled Networking [Novell-Xerox]

1038)  DER       Distinguished Encoding Rules

1039)  DES       Data Encryption Standard + Data Entry Sheet

1040) .DES      Description (file name extension)

1041)  DET       Device Execute Trigger

1042) DEV       Device

1043)  DF        Data Field + Default + Destination Field +

1044) Device Flag + Double Flag

1045)  DFC       Data Flow Control

1046) DFD            Data Flow Diagram

1047)  DFDR      Digital Flight Data Recorder

1048) DFM       Design For Manufacturability [IBM]

1049) DFP       Digital Flat Panel

1050)  DFS       Distributed File System

1051)   DFSMS     Data Facility Storage Management Subsystem [IBM]

1052)  DFT       Design For Testability + Diagnostic Function Test +

1053)  Discrete Fourier Transform +

1054)  Distributed Function Terminal

1055)  DFU       Data File Utility

1056)  DGIS      Direct Graphics Interface Standard

1057)  DHCP      Dynamic Host Configuration Protocol

1058)  DHL       Dynamic Head Loading

1059)  .DHP      Dr. Halo PIC (file name extension)

1060) DHTML     Dynamic HTML

1061)  DI        Data In + Destination Index

1062) DIA       Document Interchange Architecture [IBM]

1063)  DIB       Device Independent Bitmap +

1064) Directory Information Base +

1065)  Dual Independent Bus [Intel]

1066) DIBOL     DEC Business Oriented Language

1067)  .DIC      Dictionary (file name extension)

1068) DID       Direct Inward Dialing

1069) DIDS      Distributed Intrusion Detection System

1070)  DIF       Data Interchange Format

1071)   DIFFSENS  Differential Sense

1072)  DIIP      Direct Interrupt Identification Port

1073)  DIMM      Dual In-Line Memory Module

1074)  DIN       Deutsche Industrie Norm (German equivalent of EIA)

1075)  DIO       Data Input-Output

1076)  DIP       Dialup Internet Protocol [Internet] +

1077)  Digital Imaging Processing +

1078)  Dual In-line Package + Dual In-line Pin

1079)  DIR       Directory (file)

1080) DIS       Draft International Standard +

1081)  Dynamic Impedance Stabilization [CompuCom]

1082) DISA      Data Interchange Standards Association +

1083)  Direct Inward System Access

1084) DISP      Displacement (offset)

1085)  DIT       Directory Information Tree

1086) DIV       Divide

1087)  DIVE      Direct Interface Video Extension [OS/2 Warp]

1088) DIVX      Digital Video Express

1089) DIW       D-Inside Wire [AT&T]

1090) .DIZ      Description In Zip (file name extension)

1091)  DL        Download (also D/L)

1092) DL/1      Data Manipulation Language 1 [IBM]

1093)  DLB       Dynamic Load Balancing

1094) DLC       Data Link Control (protocol) [IBM] +

1095)  Distributed Loop Carrier

1096) DLCI      Data Link Connection Identifier

1097)  DLD       Display List Driver

1098) DLE       Data Link Escape

1099) DLL       Dynamic Link Library

1100)  DLM       Distributed Lock Manager + Dynamic Link Module

1101)   DLP       Digital Light Processing [TI]

1102)  DLPI           Data Link Provider Interface

1103)   DLR       DOS LAN Requester

1104)  DLS       Data Link Switching [IBM]

1105)   DLT       Digital Linear Tape

1106)  DM        Distributed Memory

1107)   DMA       Direct Memory Access/Addressing +

1108)  Document Management Alliance

1109)  DMAC      DMA Controller

1110)   DMACS     Distributed Manufacturing Automation & Control Software

1111)    DMD       Digital Micromirror Device [TI]

1112)   DME       Direct Memory Execution +

1113)    Distributed Management Environment

1114)   DMF       Distribution Media Format [Microsoft]

1115)    DMI       Desktop Management Interface

1116)   DML       Data Manipulation Language

1117)    DMM       Digital Multimeter

1118)   DMMS      Dynamic Memory Management System

1119)   DMOS      Double-diffused Metal-Oxide Semiconductor

1120)  DMP       Dot Matrix Printer

1121)   DMPC      Distributed Memory Parallel Computer

1122)  DMPP      Distributed Memory Parallel Processor

1123)   DMQS      Display Mode Query and Set [IBM]

1124)  DMS       Data Management Software + Data/Document

1125)   Management System

1126)  DMSD      Digital Multistandard Decoding

1127)   DMSS      Distributed Mass Storage System

1128)  DMT       Digital/Discrete Multi-Tone

1129)  DMTF      Desktop Management Task Force

1130)   DMY       Day Month Year

1131)    DN        Down

1132)   DNA            Deoxyribonucleic Acid

1133)   DNC       Direct Numerical Control

1134)   DNIC      Data Network Identification Code

1135)   DNIS      Dialed Number Identification Service

1136)   DNS       Domain Naming System

1137)   DO        Data Out + Distributed Objects

1138)   .DOC      Document + Documentation (file name extensions)

1139)   DOCIS        Data Over Cable-Service Interface Specification

1140)  DOCSV     Data Over Circuit-Switched Voice

1141)   DOE       Distributed Objects Everywhere

1142)  DOIP      Dial Other Internet Providers [IBM]

1143)   DO-IT     Disabilities, Opportunities, Internetworking and

1144)  Technology

1145)   DOLAP       Desktop OLAP

1146)  DOM       Document Object Model [W3C]

1147)   DOMF      Distributed Object Management Facility

1148)  DOS       Disk Operating System

1149)  DOSEM     DOS Emulation

1150)   .DOT           Document Template (file name extension)

1151)    DOV       Data Over Voice

1152)   DOW       Day Of Week

1153)   DP        Data Processing

1154)   DPA       Demand Protocol Architecture [3Com] +

1155)   Document Printing Architecture

1156)   DPAM      Demand Priority Access Method

1157)   DPAREN    Data Parity Enable [IBM]

1158)   DPB       Drive Parameter Block

1159)   DPC       Direct Program Control

1160)  DPI       Distributed Protocol Interface + Dots Per Inch

1161)   DPL       Descriptor Privilege Level

1162)  DPM       Digital Panel Meter

1163)   DPMA      Data Processing Management Association

1164)  DPMI      DOS Protected Mode Interface [Microsoft]

1165)   DPMS      Display Power Management Support

1166)  DPO       Data Phase Optimization

1167)   DPS       Document Processing System

1168)  DPSK      Differential Phase Shift Keying

1169)  DPtoTP    Display Coordinates to Tablet Coordinates

1170)   (converting)

1171)    DQDB      Distributed Queue Dual Bus

1172)   DQL       Data Query Language

1173)   DR        Data Received

1174)   D/R       Direct or Reverse

1175)   DRAM      Dynamic Random Access Memory

1176)   DRAW      Direct Read After Write

1177)   DR.BOND   Dial-up Router Bandwidth On Demand [NEC]

1178)   DRDA      Distributed Relational Database  Algorithm/Architecture [IBM]

1179)   DR-DOS    Digital Research-Disk Operating System

1180)  DRDW      Direct Read During Write

1181)   DRI       Declarative Referential Integrity +

1182)  Digital Research Incorporated

1183)   DRM       Digital Rights/Distributed Resource Management

1184)  DRO       Data Request Output + Destructive Read-Out

1185)   DRS       Document Registration System

1186)  .DRS      Driver Resource (file name extension) [WordPerfect]

1187)   DRV       Drive

1188)  .DRV      Device Driver (file name extension) (Also see .DVR)

1189)  .DRW      Draw + Drawing (file name extensions)

1190)  DS        Data Segment + Data Send + Data Server + Double Sided

1191)   D/S       Dhrystone Per Second

1192)  DSA       Digital Signature Algorithm + Directory System Agent

1193)   DSAP      Destination Service Access Point

1194)  DSD       Direct Stream Digital [Sony-Philips]

1195)   DSDD      Double Sided, Double Density (diskette)

1196)  DSE       Data Storage Equipment

1197)   DSEA      Display Station Emulation Adapter

1198)  DSECT     Dummy Control Section

1199)  DSHD      Double Sided, High Density (diskette)

1200) DSIS      Distributed Support Information Standard

1201)  DSL       Digital Subscriber Line

                                                    i.                      ADSL        Asymmetric DSL

                                                  ii.                      BDSL        Broadband DSL

                                                 iii.                      CDSL        Consumer DSL [Rockwell]

                                                 iv.                      FDSL        Fixed Directory Subscriber List

                                                   v.                      HDSL       High-Bit-Rate DSL +

a.       High-Data-Rate DSL

                                                 vi.                      IDSL         Integrated Services Digital Network DSL

                                                vii.                      RDSL        Rate-Adaptive DSL

                                              viii.                      SDSL        Single-Line DSL +

a.       Symmetric DSL

                                                 ix.                      VDSL        Very-High-Bit-Rate DSL

                                                   x.                      VADSL     Very-High-Rate Asymmetric DSL

                                                 xi.                      VDSL        Very-High-Data-Rate DSL

1202) DSL       Dynamic Simulation Language

1203)  DSLAM     Digital Subscriber Line Access Multiplexer

1204) DSM       Distributed Shared Memory

1205)  DSMA      Digital Sense Multiple Access

1206) DSN       Delivery Service Notification

1207)  DSOM      Distributed System Object Model

1208) DSP       Digital Signal Processing/Processor +

1209) Directory Synchronization Protocol [Lotus]

1210)  DSPT      Display Station Pass-Thru [IBM]

1211)   DSQD      Double Sided, Quad Density (diskette)

1212)  DSR       Data Set Ready + Device Status Register +

1213)   Device Status Report

1214)  DSS       Decision Support System + Digital Signature Standard +

1215)   Direct Station Selector

1216)  DSSI      Digital Standard Systems Interconnect [DEC]

1217)   DSSS      Direct-Sequencing Spread Spectrum

1218)  DSSSL     Document Style Semantics and Specifications Language

1219)  DSTN      Double Supertwisted Nematic

1220) DSU       Data Service/Switching Unit + Digital Service Unit

1221)  DSVD      Digital Simultaneous Voice and Data

1222) DSW       Data Status Word + Device Status Word

1223)  DSX       Digital Signals Cross-Connect

1224) D2T2      Dye Diffusion Thermal Transfer (printing)

1225)  DTA       Disk Transfer Area

1226) .DTA      Data (file name extension)

1227)  DTC       Desktop Conferencing

1228) DTD       Document Type Definition

1229) DTE       Data Terminal Equipment + Dumb Terminal Emulator

1230)  DTF       Distributed Test Facility

1231)   DTL       Dialogue Tag Language [IBM] + Diode-Transistor Logic

1232)  DTM       Digital Terrain Mapping

1233)  DTMF      Data Tone Multiple Frequency + Dual Tone Multifrequency

1234)  DTP       Desktop Publishing + Distributed Transaction Process

1235)  DTR       Data Terminal Ready + Data Transfer Rate

1236)  DTS             Distributed Traffic Shaping [Cisco]

1237)  DTSS      Dartmouth Time Sharing System

1238)  DTV       Desktop Video + Digital Television

1239)  DTVC      Desktop Video Conferencing

1240) DU        Disk Usage

1241)  DUA       Directory User Agent

1242) DUAT      Direct User Access Terminal

1243)  DUN       Dial-Up Networking [Microsoft]

1244) DUNCE     Dial Up Network Connection Enhancement

1245)  DV        Digital Video

1246) .DV       DESQview Script (file name extension)

1247)  DVC       Desktop Video Conferencing + Digital Video Camera

1248) DVD       Digital Video Disk

1249) DVD-R     Digital Video Disk-Recordable

1250)  DVD-RAM   Digital Versatile Disc-RAM

1251)   DVD-ROM   Digital Versatile Disc-ROM

1252)  DVE       Digital Video Effect

1253)  DVI       Digital Video Interactive + Digital Visual Interface

1254)  .DVI      Device Independent (file name extension)

1255)  DVM       Digital Volt Meter

1256)  DVMRP     Distance Vector Multicast Routing Protocol [Internet]

1257)  DVR       Digital Video Recorder

1258)  .DVR      Device Driver (file name extension) (Also see .DRV)

1259)  DW        Data Warehousing

1260) DWDM      Dense Wavelength Division Multiplexer

1261)  DWG       Drawing

1262) DWMT      Discrete Wavelet Multitone

1263)  D2X       Decimal To Hexadecimal [REXX]

1264) .DXB      Drawing Interchange Binary (file name extension)

1265)  [AutoCAD]

1266) DXC       Data Exchange Control

1267)  DXF       Data Exchange File + Drawing Exchange Format

1268) DXI       Data Exchange Interface

1269) DYNSLT     Dynamic Select [IBM]

1270)  DYNSRC    Dynamic Source

E...

1271)   EA        Effective Address + Extended Attribute [OS/2]

1272)  EAI              Enterprise Application Integration

1273)  EAR       External Access Register

1274)  EARN      European Academic Research Network

1275)  EAROM     Electrically Alterable Read Only Memory

1276)  EARS      Electronic Access to Reference Services +

1277)  Electronic Authoring and Routing System [DEC] +

1278)  Explicit Archive and Retrieval System [Langley Research]

1279)  EATA      Enhanced AT Bus Attachment

1280) EAX       Environmental Audio Extensions [Creative]

1281)  EB        Exabyte (1,024 petabytes)

1282) (One Billion Billion characters of information)

1283)  EBC       EISA Bus Controller

1284) EBCT      Electron Beam Computed Tomography

1285)  EBCDIC    Extended Binary Coded Decimal Interchange Code [IBM]

1286) EBI       Equivalent Background Input +

1287)  Extended Background Investigation

1288) EBFM - Electronic Business Flow Management

1289) EBNF      Extended Backus-Naur Form

1290) EBOOK      Electronic Book

1291)  EBPP           Electric Bill Presentment and Payment

1292) EBT       Electronic Benefits Transfer

1293)  EC        Electronic Commerce + Error Control

1294) ECAL      Enjoy Computing And Learn

1295)  ECAT      Electronic Card Assembly and Test [IBM]

1296) ECB       Electronic Codebook + Event Control Block

1297)  ECC       Elliptic Curve Crypto + Error Check Code +

1298) Error Checking and Correction + Error Correction Code

1299) ECD       Enhanced Color Display + Enhanced Compact Disk

1300)  ECHO      European Commission Host Organization [Internet]

1301)   ECI       External Call Interface

1302)  ECL       Emitter Coupled Logic

1303)  ECM       Electronic Control Module

1304)  ECMA      European Computer Manufacturers Association

1305)  ECN             Electronic Communications Network

1306)  ECNE      Enterprise Certified NetWare Engineer [Novell]

1307)  ECP       Enhanced/Extended Capabilities Port [Microsoft]

1308)  ECS       Enhanced Chip Set

1309)  ECTL      Electronic Communal Temporal Lobe

1310)   ECU       EISA Configuration Utility

1311)    ED        Erase Display

1312)   EDA       Electronic Design Automation +

1313)   Embedded Document Architecture [Go Corporation]

1314)   EDB       Embedded Database

1315)   EDC       Electronic Digital Computer +

1316)   Enhanced Data Correction +

1317)   Error Detection and Correction

1318)   EDDC      Extended Distance Data Cable

1319)   EDE       Encrypt-Decrypt-Encrypt

1320)  EDGAR     Electronic Data Gathering, Analysis and Retrieval

1321)   EDGE          Enhanced Data-Rates for Global Evolution

1322)  EDI       Electronic Data Interchange +

1323)            Electronic Document Interchange [DEC]

1324)  EDIF      Electronic Design Interchange Format

1325)  EDIFACT   EDI for Administration Commerce and Transport

1326)  EDL       Edit Decision List

1327)  EDLC      Ethernet Data Link Control

1328)  EDLIN     Editor (Line Text)

1329)  EDMS      Electronic Document Management System

1330)  EDO       Extended Data Out

1331)   EDOS      Enhanced DOS for Windows

1332)  EDP       Electronic Data Processing

1333)  EDPM      Electronic Data Processing Machine

1334)  EDRAM     Eraseable/Extended Dynamic Random Access Memory

1335)  EDS       Electronic Data Systems (corporation)

1336)  EDSAC   * Electronic Delay Storage Automatic Computer

1337)  .EDU      Educational Institutions (Domain Name) [Internet]

1338)  EDVAC   * Electronic Discrete Variable Automatic Computer

1339)  (First stored-program digital computer)

1340)  EE        Extended Edition [IBM]

1341)   EEC       Extended Error Correction

1342)  EEG       Electroencephalogram

1343)  EEL       Epsilon Extension Language

1344)  EEM       Extended Memory Management

1345)  EEMAC     Electrical & Electronic Manufacturers of Canada

1346)  EEMS      Enhanced Expanded Memory Specification

1347)  EEPROM    Electrically Erasable Programmable Read-Only Memory

1348)  EES       Escrow Encryption Standard

1349)  EFA       Extended File Attribute

1350)  EFF       Electronic Frontier Foundation

1351)   EFI       Electromechanical Frequency Interference +

1352)  Electronics For Imaging

1353)  EFIGS     English, French, Italian, German, Spanish

1354)  EFL       Emitter Follower Logic

1355)  E-FORM    Electronic Form

1356)  EFS       Encrypting File System

1357)  EFTS      Electronic Funds Transfer System

1358)  EGA       Enhanced Graphics Adapter

1359)  EGP       Exterior Gateway Protocol

1360)  EGREP     Extended Global Regular Expression Print [Unix]

1361)   EHLLAPI   Emulator High Level Language Application

1362)  Programming Interface [IBM]

1363)  EIA       Electronic Industries Association

1364)  EIDE      Enhanced Integrated Drive Electronics

1365)  EIS       Executive Information System

1366)  EISA      Extended Industry Standard Architecture

1367)  EJB       Enterprise JavaBeans

1368)  EL        Electroluminescent (display) + Erase Line

1369)  ELAN      Emulated Local Area Network

1370)  ELC       Embedded Linking and Control

1371)   ELEC           Enterprise Local Exchange Carrier

1372)  ELF       Executable and Linking Format +

1373)  Extremely Low Frequency

1374)  ELS       Entry Level System

1375)  EM        Electronic Mail + Emphasized + End of Medium +

1376)  Expanded Memory

1377)  EMA       Electronic Mail Association +

1378)  Enterprise Management/Memory Architecture

1379)  EMACS     Editing Macros [Unix]

1380)  E-MAIL    Electronic Mail

1381)   EMB       Extended Memory Block [LIM/AST]

1382)  EMBARC    Electronic Mail Broadcast to a Roaming Computer

1383)  [Motorola]

1384)  EMC       Electromagnetic Compatibility + Enhanced Memory Chip +

1385)  E-Mail Connection + Extended Math Coprocessor

1386)  EMCC    * Eckert-Mauchly Computer Company (World's first computer

1387)  company, founded by Presper Eckart and John Mauchly,

1388)  who invented and built the first UNIVAC)

1389)  EMI       Electromagnetic Interference

1390)  .EML      Electronic Mail (file name extension)

1391)   EMM       Expanded Memory Manager

1392)  EMR       Electro-Magnetic Radiation +

1393)  Enhanced Metafile Record

1394)  EMS       Electronic Mail System + Electronic Message Service +

286           Energy Management System +

1395)  Expanded Memory Specification [LIM]

1396)  EMSAPI    Extended Messaging Services Application

1397)  Programming Interface

1398)  EMWAC     European Microsoft Windows NT Academic Centre

1399)  .ENC      Encoded (file name extension)

1400) ENDEC     Encoder/Decoder

1401)  ENDS      Ends Segment

1402) ENIAC   * Electronic Numerical Integrator Analyzer and

1403)  Computer (First fully electronic digital computer)

1404) ENQ       Enquiry

1405)  ENSS      Exterior Nodal Switching Subsystem [Internet]

1406) EOA       End Of Address

1407)  EOB       End Of Block

1408) EOC       End Of Conversion

1409) EOF       End Of File + Enterprise Objects Framework

1410)  [Next Computer]

1411)   EOI       End Of Interrupt + End Or Identify

1412)  EOJ       End Of Job

1413)   EOL       End Of Line + End Of List

1414)  EOM       End Of Message

1415)   EOR       Exclusive OR (Also XOR)

1416)  EOS       Earth Observing System [NASA] + End Of String

1417)   EOSDIS    Earth Observing System Data and Information System [NASA]

1418)  EOT       End Of Table + End Of Tape (marker) + End Of Text +

1419)  End Of Transmission

1420) EP        Electrophotographic Engine

1421)  EPIC      Explicitly Parallel Instruction Computing (chip) [Intel]

1422) EPL       Effective Privilege Level

1423)  EPLD      Electrically Programmable Logic Device

1424) EPM       Enhanced Editor for Presentation Manager [IBM] +

1425)  Enterprise Process Management [IBM]

1426) EPP       Enhanced Parallel Port

1427)  EPROCESS  Executive Process

1428) EPROM     Electrically Programmable Read Only Memory +

1429) Erasable Programmable Read Only Memory

1430)  .EPS      Encapsulated PostScript (file name extension)

1431)   EPSF      Encapsulated PostScript Files

1432)  ERA       Extended Registry Attributes

1433)  ERAS      Electronic Routing and Approval System [Hughes Aircraft]

1434)  ERD       Emergency Repair Disk + Entity Relationship Diagram

1435)  ERIC      Educational Resources Information Center [Internet]

1436)  ERLL      Enhanced Run Length Limited

1437)  ERMA    * Electronic Recording Method, Accounting

1438)  [General Electric]

1439)  EROM      Erasable Read Only Memory

1440) EROS      Earth Resources Observation System

1441)  [U.S. Geological Survey]

1442) ERP       Enterprise Resource Planning

1443)  ERR       Error

1444) ER/RC     Extended Result/Response Code

1445)  ERU       Emergency Recovery Utility [Microsoft]

1446) ES        Extra Segment

1447)  ESA       Enterprise Systems Architecture [IBM] +

1448) European Space Agency

1449) ESC       EISA System Component + Escape

1450)  ESCD      Extended System Configuration Data

1451)   ESCM      Extended Services Communications Manager [IBM]

1452)  ESCON     Enterprise System Connection (Architecture) [IBM]

1453)  ESC/P     Epson Standard Code for Printers

1454)  ESD       Electronic Software Distribution +

1455)  Electrostatic Discharge + Emergency Startup Disk

1456)  ESDI      Enhanced Small/System Device Interface

1457)  ESDRAM    Enhanced SDRAM

1458)  ESF       Extended Superframe

1459)  ESI       End System Identifier +

1460) Enhanced Serial Interface (specification) [Hayes]

1461)  ESMR      Enhanced Specialized Mobile Radio

1462) ESN       Electronic Security Number

1463)  ESP       Emulation Sensing Processor +

1464) Encapsulating Security Payload (header) +

1465)  Enhanced Serial Port [Hayes] + Enhanced Service Provider +

1466) Enterprise System Platcorm + Estimated Selling Price

1467)  ESR       Event Service Routine

1468) ESS       Electronic Switching System

1469) ESU       Electro-Static Unit

1470)  ET        Enhancement Technology

1471)   ETACS     Extended Total Access Communication System [IBM]

1472)  ETANN     Electrically Trainable Analog Neural

1473)  Network (chip) [Intel]

1474)  ETB       End of Transmission Block

1475)  ETC       Electronic Toll Collection +

1476)  Enhanced Throughput Cellular (modem protocol) [AT&T]

1477)  E-TEXT    Electronic Text

1478)  ETF       Enriched Text Format

1479)  ETOM      Electron-Trapping Optical Memory

1480) ETPL      Endorsed Tempest Products List

1481)  ETS       Econometric Time Series

1482) ETX       End Of Text

1483)  EU        Execution Unit

1484) EUC       End User Computing + Extended Unix Code [IBM]

1485)  EUDORA    (Named after author of story:

1486) "Why I Live at the P.O.", Ms. Eudora Welty)

1487)  EUI       End-User Interface

1488) EULA          End-User License Agreement

1489) EVE       Extensible VAX Editor

1490) EVGA      Extended Video Graphics Array +

1491)  Extended Video Graphics Adapter

1492) EWAN      Emulator Without A Good Name [Internet]

1493)  EWS       Employee Written Software [IBM]

1494) ExCA      Exchangeable Card Architecture [Intel]

1495)  .EXE      Executable (file name extension)

1496) EXE2BIN   Program used to convert an (.EXE) file to binary

1497)  format (.COM) file

1498) EXM       Enterprise Messaging Exchange [Lotus]

1499) EXP       Exponent

1500)  EXT       External

1501)   EXTRN     External Reference

1502)  E-ZINE    Electronic Magazine

F...

1503)  FAB       Computer-Chip Fabrication Plant

1504)  FAC       File Access Code

1505)  FAMOS     Floating Gate Avalanche MOS

1506)  FANS      Future Air Navigation System

1507)  FAP       File Access Protocol

1508)  FAPI      Family Application Program Interface

1509)  FAQ       Frequently Asked Question

1510)   FARNET    Federation of American Research Networks [Internet]

1511)    FASIC     Function and Algorithm-Specific Integrated Circuit

1512)   FAT       File Allocation Table

1513)   FAX       Facsimile

1514)   .FAX      Fax (file name extension)

1515)   FC/AL     Fiber Channel/Arbitrated Loop

1516)   FCB       File Control Block

1517)   FCC       Federal Communications Commission

1518)   FCC:      File Carbon Copy

1519)   FCCSET    Federal Coordinating Council for

1520)  Science, Engineering and Technology

1521)   FC/EL     Fiber Channel/Enhanced Loop

1522)  FCI       Flux Changes per Inch

1523)  FCL       Fibre Channel Loop

1524)  FCR       FIFO Control Register

1525)  FCS       Fiber Channel Standard + Frame Check Sequence

1526)  FD        Floppy Disk + Floppy Drive + Full Duplex

1527)  FDC       Floppy Disk Controller

1528)  FDDI      Fiber Digital Device Interface +

1529)  Fiber Distributed Data Interface

1530)  FDHD      Floppy Drive High Density

1531)   FDISK     Fixed Disk

1532)  FDM       Frequency Division Multiplexing

1533)  FDMA      Frequency Division Multiple Access

1534)  FDSL           (See DSL)

1535)  FDX       Full Duplex

1536)  FEC       Forward Error Correction

1537)  FECN      Forward Explicit Congestion Notification

1538)  FED       Field Emission/Emitter Display

1539)  FEFO      First-Ended, First-Out

1540)  FEP       Front End Processor

1541)   FEPI      Front End Programming Interface

1542)  FEPROM    Flash EPROM

1543)  FERAM     Ferroelectric RAM

1544)  FESDK     Far East Software Development Kit [Microsoft]

1545)  FET       Field Effect Transistor

1546)  FF        Flip-Flop + Form Feed

1547)  FFDC      First Failure Data Capture [IBM]

1548)  FFS       Fast File System

1549)  FFST      First Failure Support Technology [IBM]

1550)  FFT       Fast Fourier Transform + Final Form Text [IBM]

1551)   FG        Floating Gate

1552)  FGREP     Fixed Global Regular Expression Print [Unix]

1553)  FHS       Fan Heat-Sink

1554)  FHSS      Frequency-Hopping Spread Spectrum

1555)  FIB              Forwarding Information Base

1556)  FIF       Fractal Image Format

1557)  FIFO      First-In, First-Out

1558)  FILO      First-In, Last-Out

1559)  FINDSTR                     Find Strings

1560)  FIP       File Processor Buffering

1561)   FIPS      Federal Information Processing Standard

1562)  FIR       Fast Infrared + Finite Impulse Response

1563)  .FIRM     Business or Firm (Domain Name) [Internet]

1564)  FIRST     Forum of Incident Response and Security Teams

1565)  FITS            Flexible Image Transport System

1566)  FIU       Fingerprint Identification Unit [Sony]

1567)  FIX       Federal Internet Exchange

1568)  FK                Foreign Key

1569)  FLA       Four Letter Acronym

1570)  FLC       Ferro-electric Liquid Crystal

1571)   FLD       Field

1572)  FLL       FoxPro Link Library [Microsoft Fox Pro]

1573)  FLOPS     Floating Point Operations Per Second

1574)  .FLR      Folder (file name extension)

1575)  FMD            Fluorescent Multilayer Disk

1576)  FMS       Forms Management System

1577)  FMT       Format

1578)  FMV       Full Motion Video

1579)  FNT       Font

1580)  FOCUS     Forum of Control Data Users

1581)   FOD       Fax On Demand

1582)  FOG       First Osborne Group

1583)  FOIP      Fax Over Internet Protocol

1584)  FOIRL     Fiber Optic Inter Repeater Link [IEEE]

1585)  FOLDOC    Free On-Line Dictionary Of Computing

1586)  .FON      Font + Phone + Phone Directory (all file name

1587)  extensions)

1588)  .FOR      Fortran source code (file name extension)

1589)  FORTH     (Programming Language)(See HLL)

1590)  FORTRAN   Formula Translator (Programming Language)(See HLL)

1591)   FOSE      Federal Office Systems Exposition

1592)  FOSI      Format Option Specification Instance

1593)  FOSSIL    Fido/Opus/Seadog Standard Interface Layer

1594)  FPC       Floating Point Calculation

1595)  FPCE      Floating-Point C Extension (specification)

1596)  FPGA      Field Programmable Gate-Array

1597)  FPLA      Field Programmable Logic-Array

1598)  FPM       Fast Page Mode

1599)  FPP       Fixed Path Protocol + Floating Point Processor

1600) FPR       Floating-Point Register

1601)  FPS       Favorite Picture Selection + Frames Per Second

1602) FPT       Forced Perfect Termination

1603)  FPU       Floating Point Unit

1604) FPX             FlashPix (format) [Kodak]

1605)  FQDN      Fully Qualified Domain Name [Internet]

1606) FRAD      Frame Relay Access Device +

1607)  Frame Relay Assembler/Disassembler

1608) FRAG      Fragment + Fragmentation

1609) FRAM      Ferroelectric Random-Access Memory

1610)  FRC       Functional Redundancy Checking

1611)   FRED      Frame Editor + Front-End to Dish

1612)  FRPI      Flux Reversals Per Inch

1613)   .FRS      WordPerfect Graphics Driver (file name extension)

1614)  FS        File Separator

1615)   FSB       Front Side Bus

1616)  FSD       File System Driver [OS/2]

1617)   FSE       Full Screen Editor

1618)  FSF       Free Software Foundation [Internet]

1619)  FSK       Frequency Shift Keying

1620) FSN       Full Service Network

1621)  FSP       File Service Protocol

1622) FSR       Free System Resources

1623)  FST       Flat Square Tube (monitor)

1624) F/T       Full Time

1625)  FTAM      File Transfer, Access and Management +

1626) File Transfer and Access Method

1627)  FTL       Flash Transition Layer [Intel]

1628) FTM       Flat Tension Mask [Zenith]

1629) FTP       File Transfer Protocol [Internet]

1630)  FTPD      File Transfer Protocol Daemon

1631)   FTTB           Fiber To The Basement

1632)  FTTC      Fiber To The Curb

1633)  FTTN          Fiber To The Neighborhood

1634)  FTS       Federal Telecommunication System

1635)  FTX       Fault Tolerant Unix

1636)  FUI       File Update Information

1637)  FUNC      Function

1638)  FVT       Full Video Translation

1639)  FYI       For Your Information

G...

1640) GA        General Availability

1641)  GAAP      Generally Accepted Accounting Principles

1642) GAL       Generic Array Logic

1643)  GAPI      Gateway Application Programming Interface

1644) GART      Graphics Address Relocation Table

1645)  GATT      Graphics Address Translation Table

1646) Gb        Gigabit (1,024 megabits) +

1647)  (One Billion Bits of Information)

1648) GB        Gigabyte (1,024 megabytes) +

1649) (One Billion Characters of Information)

1650)  GCC       GNU C-Compiler [Unix]

1651)   GCCD      Glass-Passivated Ceramic Chip Diode

1652)  GCR       Group Code Recording

1653)  GDA       Global Data Area + GNOME Data Access

1654)  GDDM      Graphics Data Display Manager

1655)  GDG       Generation Data Group [IBM]

1656)  GDI       Graphical Device Interface

1657)  GDLC      Generic Data Link Control [IBM]

1658)  GDP       Graphic Draw Primitive

1659)  GDT       Geometric Dimensioning and Tolerancing +

1660) Global Descriptor Table +

1661)  Graphics Development Toolkit

1662) GECOS     General Electric Comprehensive Operating System

1663)  GEIS      General Electric Information Service (company)

1664) GEM       Graphics Environment Manager (DRI Program)

1665)  GENIE     General Electric Network for

1666) Information Exchange

1667)  GEO       Geostationary Earth Orbit

1668) GEOS      Graphic Environment Operating System [Geoworks]

1669) GET       Get Execute Trigger

1670)  GFI       General Format Identifier + Ground-Fault Interceptor

1671)   GGP       Gateway-Gateway Protocol [Internet]

1672)  GHZ       Gigahertz

1673)  .GID      Topics (file name extension) [Microsoft]

1674)  .GIF      Graphics Interchange Format (file name extension)

1675)  GIGO      Garbage In, Garbage Out

1676)  GII       Global Information Infrastructure

1677)  GILS      Government Information Locator Service

1678)  GIMPS     Great Internet Mersenne Prime Search

1679)  GINA      Graphical Identification and Authentication

1680) GIS       Geographic Information System +

1681)  Global Information Solutions [AT&T]

1682) GIX       Global Internet Exchange [Internet]

1683)  GKS       Graphical Kernel System

1684) GL        Graphics Language

1685)  G/L       General Ledger

1686) GLIS      Global Land Information System [US Geological Survey]

1687)  GLM       General Linear Models

1688) GLOBE     Global Learning by Observations to Benefit

1689) the Environment [Internet]

1690) .GLY      Glossary (file name extension) [Microsoft Word]

1691)  GMDI         Gigabit Media-Dependent Interface

1692) GML       Generalized Markup Language

1693)  GMP       Global Mobile Professional

1694) GMR       Giant Magneto-Resistive (read head technology)

1695)  GMS       Global Management System +

1696) Global Messaging Service [Novell]

1697)  GMT       Greenwich Mean Time

1698) GND       Ground (signal/system)

1699) GNN       Global Network Navigator

1700)  GNU       Gnu's Not Unix (operating system)

1701)   GNOME     GNU Network Object Model Environment

1702)  GOAD         GNOME Object Activation Directory

1703)  GOSIP     Government Open Systems Interconnection Profile

1704)  .GOV      Governmental (Domain Name) [Internet]

1705)  GP        Gas Plasma + General Purpose

1706)  GPF       General Protection Fault

1707)  GPI       Graphics Programming Interface

1708)  GPIB      General Purpose Information/Interface Bus

1709)  GPIO           General Purpose Input/Output

1710)   GPR       General Purpose Register [IBM]

1711)    GPRC      Glass Passivated Rectifier Chip

1712)   GPS       Global Positioning Satellite/System +

1713)   Global Product Specification

1714)   GPSS    * General Purpose Systems Simulator (language)

1715)   GPU       Graphics Processing Unit

1716)   GRADD     Graphics Adapter Device Driver [IBM]

1717)   GRE       Generic Routing Encapsulation + Graphics Engine

1718)   GREP      Global Regular Expression Print

1719)   .GRF      Graph (file name extension)

1720)  .GRP      Group (file name extension)

1721)   GS        Group Separator

1722)  GSI       General Server Interface

1723)  GSM       Global Shared Memory +

1724)  Global System for Mobile-Communications (network)

1725)  GSNW      Gateway Service for NetWare [Microsoft]

1726)  GSP       Generic Server Passer + Global Service Provider

1727)  GSTN      General Switched Telephone Network

1728)  GTE       General Telephone Electronics (corporation)

1729)  GTF       Generalized Timing Format

1730)  GTL       Gunning Transceiver Logic

1731)   GTO       Guide To Operations [IBM]

1732)  GTP     * Geometry Theorem Prover

1733)  GTS             Generic Traffic Shaping [Cisco]

1734)  GUI       Graphical User Interface

1735)  GUID      Globally Unique Identifier +

1736)  Global Universal Identifier

1737)  GVT       Global Virtual Time

1738)  GW-BASIC  Gee Whiz BASIC

1739)  .gz       Compressed file (compressed filename extension -

1740)  using GNU gzip compression/decompression program) [Unix]

1741)   GZIP      GNU Zip

H...

1742)  .H        Header (file name extension) [C]

1743)  HACMP     High Availability Cluster Multi-Processing [IBM]

1744)  HAL       Hard Array Logic + Hardware Abstraction Layer +

1745)  House-Programmed Array Logic

1746)  HAL     * Heuristically Programmed Algorithmic (computer)

1747)  [from 1968 movie "2001: A Space Odyssey"]

1748)  HAP       Host Access Protocol

1749)  HASP      Houston Automatic Spooling Priority (System)

1750)  HBA       Host Bus Adapter

1751)   HCL       Hardware Compatibility List

1752)  HCSS      High Capacity Storage System

1753)  HCU       Home Computer User

1754)  HD        Hard Disk + High Density

1755)  HDA       Head Disk Assembly

1756)  HDCD      High Definition Compatible Digital

1757)  HDF       Hierarchical Data Format [NCSA]

1758)  HDI       Head to Disk Interference

1759)  HDL       Hardware Description Language

1760)  HDLC      High-Level Data Link Control

1761)   HDM       Hardware Device Module

1762)  HDML      Handheld Device Markup Language

1763)  HDR       Header

1764)  HDSC      High Density Signal Carrier [DEC]

1765)  HDSL      (See DSL)

1766)  HDSS      Holographic Data Storage System

1767)  HDT       Host Digital Terminal

1768)  HDTV      High Definition Television

1769)  HDVD      High Definition Volumetric Display

1770)  HDW       Hardware

1771)   HDX       Half Duplex

1772)  HEOS         High Earth Orbiting Satellite

1773)  HERC      Hercules

1774)  HEX       Hexadecimal

1775)  HFC       Hybrid Fiber-Coaxial

1776)  HFS       Hierarchical File System [Macintosh]

1777)  HFT       High Function Terminal [IBM]

1778)  HGA       Hercules Graphics Adapter

1779)  HGCP      Hercules Graphics Card Plus

1780)  HH        Hour

1781)   HIF       Hyper-G Interchange Format

1782)  HIFD      High-Density Floppy Disk

1783)  HIL       Human Interface Link [HP]

1784)  HIMEM     High Memory

1785)  HIPAA - Health Insurance Portability and Accountability Act of 1996

1786)  HIPPI     High Performance Parallel Interface

1787)  HLCO      High Low Close Open

1788)  HLL       High Level Language

1789)  HLLAPI    High Level Language Application Programming Interface

1790)  .HLP      Help (file name extension)

1791)   HLQ       High Level Qualifier

1792)  HLS       Hue, Luminance, Saturation (color model)

1793)  HLT       Halt

1794)  HMA       High Memory Area [Microsoft] +

1795)  Hub Management Architecture

1796)  HMD       Head Mounted Display

1797)  HMM       Hidden Markov Model

1798)  HMMP      Hyper-Media Management Protocol

1799)  HMOS      High Density Metal Oxide Semiconductor +

1800) High Speed Metal Oxide Semiconductor

1801)  HMP       Host Monitoring Protocol

1802) HOLAP       Hybrid OLAP

1803)  HOTT      Hot Off The Tree (electronic newsletter)

1804) HOV       High Occupancy Vehicle

1805)  HP        Hewlett-Packard (Company)

1806) HPC       Handheld Personal Computer

1807)  HPCC      High Performance Computing and Communications

1808) HPDJ      Hewlett-Packard Desk Jet

1809) HPFS      High-Performance File System

1810)  HPG       Hewlett-Packard Graphics

1811)   HPGL      Hewlett-Packard Graphics Language

1812)  HPIB      Hewlett-Packard Interface Bus

1813)   HPLJ      Hewlett-Packard Laser Jet

1814)  HPOM      Home Page Objects Model [Microsoft]

1815)   HPPA      Hewlett-Packard Precision Architecture

1816)  HPPI      High Performance Parallel Interface

1817)   HPR       High Performance Routing [IBM]

1818)  HPSB      High Performance Serial Bus

1819)  HPUX      Hewlett-Packard Unix

1820) HPW       High Performance Workstation [Sun]

1821)  .HQX      BinHex (file name extension) [Macintosh]

1822) HRIS      Human Resource Information System

1823)  HRG       High Resolution Graphics

1824) HRMS      Human Resource Management System

1825)  HRTF      Head Related Transfer Function

1826) HS        High Speed

1827)  HSB       Hue, Saturation, Brightness (color model)

1828) HSC       Hierarchical Storage Controller + High Speed Channel

1829) HSI       Hue, Saturation, Intensity

1830)  HSM       Hierarchical Storage Management

1831)   HSP       High Speed Printer/Processor

1832)  HSSI      High Speed Serial Interface

1833)  HST       High Speed Technology [U.S. Robotics]

1834)  .HST      History + Host (file name extensions)

1835)  HSV       Hue Saturation Value

1836)  HTML      HyperText Markup Language

1837)  HTTP      HyperText Transfer Protocol

1838)  HTTP-NG   HTTP Next Generation

1839)  HTTPS     HyperText Transfer Protocol Secure

1840) HUD       Heads Up Display

1841)  HUT       Hopkins Ultraviolet Telescope

1842) H/V       Horizontal/Vertical

1843)  HVP       Horizontal & Vertical Position

1844) H/W       Hardware

1845)  HWCP      Hardware Code Page

1846) HWD       Height-Width-Depth

1847)  HWDM      Hyperfine Wave Division Multiplexing

1848) .HYP      Hyphenation (file name extension)

1849) HYTELNET  Hypertext-browser for Telnet Accessible Sites

1850)  Hz        Hertz

I...

1851)   IA                 Intel Architecture [Intel]

1852)  IAB       Internet Architecture Board

1853)  IAC       Inter-Application Communication [Macintosh]

1854)  IAEC           International Address Element Code

1855)  IAG       Instruction Address Generation

1856)  IAK       Internet Access Kit [IBM]

1857)  IAL     * International Algebraic Language

1858)  (ALGOL was first called IAL)

1859)  IANA      Internet Assigned Numbers Authority

1860) IAP       Internet Access Provider

1861)  IAS       Internet Access Server

1862) IAT       Import Address Table

1863)  IAUP      Internet User Account Provider

1864) IBC       Instrument Bus Computer

1865)  iBCS      Intel Binary Compatibility Specification

1866) IBIP      Information Based Indicia Program [U.S. Postal Service]

1867)  IBM       International Business Machines (Corporation)

1868) IBM-GL    IBM Graphics Language

1869) IC        Input Circuit + Integrated Circuit + Interrupt Controller

1870)  ICA       Intelligent Console Architecture +

1871)   Intra-application Communications Area

1872)  ICANN        International Corporation for Assigned Names and Numbers

1873)  ICAP      Internet Calendar Access Protocol [Lotus]

1874)  ICAS      Intel Communicating Applications Specifications

1875)  ICB       Internet Citizen's Band

1876)  ICCP      Institute for the Certification of

1877)  Computing Professionals

1878)  ICD       International Code Designator

1879)  ICE       In-Circuit Emulator [Intel] +

1880) Integrated Computing Environment [Langley Research]

1881)  ICES      Interference-Causing Equipment Standard

1882) ICI       Image Component Information

1883)  ICL       Interface Clear

1884) ICLID     Incoming-Call Line Identification

1885)  ICM       Image Color Matching [Kodak] + Incoming Message

1886) .ICM      Image Color Management (file name extension)

1887)  ICMP      Internet Control Message Protocol [Novell]

1888) .ICO      Icon (file name extension)

1889) iCOMP     Intel Comparative Microprocessor Performance [Intel]

1890) ICP       Image Coprocessor + Integrated Channel Processor

1891)  ICQ       I Seek You (messaging program0

1892) ICR       Intelligent Character Recognition

1893)  ICS       Internet Connection Sharing [Microsoft] +

1894) Intuitive Command Structure

1895)  ICSAPI    Internet Connection Services API

1896) ICU       Instruction-Cache Unit +

1897)  Intel Configuration Utility [Microsoft] +

1898) ISA Configuration Utility

1899) ID        Identification + Identifier

1900) IDA       Integrated Digital Access + Intelligent Disk Array +

1901)  Intelligent Drive Array

1902) IDAPI     Integrated Database Application Programming Interface

1903)  IDC       Integrated Database Connector +

1904) Integrated Desktop Connector +

1905)  Internet Database Connector [Microsoft]

1906) IDDE      Integrated Development & Debugging Environment [Symantec]

1907)  IDE       Imbedded Drive Electronics +

1908) Integrated Development Environment [Borland] +

1909) Integrated Drive Electronics +

1910)  Intelligent Drive Electronics +

1911)   Interactive Design and Engineering +

1912)  Interface Design Enhancement

1913)   IDEA      International Data Encryption Algorithm

1914)  IDEN          Integrated Data Enhanced Network

1915)   IDF       Intermediate Distribution Frame

1916)  IDI       Initial Domain Identifier

1917)   IDIV      Integer Divide

1918)  IDL       Interactive Data Language +

1919)  Interface Definition Language

1920) IDM       Integrated Document Management

1921)  IDMS      Integrated Data Base Management System

1922) IDNX      Integrated Digital Network Exchange [IBM]

1923)  IDP       Integrated Data Processing

1924) IDR       Intelligent Document Recognition

1925)  IDSL      (See DSL)

1926) IDT       Interface Design Tool + Interrupt Descriptor Table

1927)  .IDX      Index (file name extension)

1928) IE        Internet Explorer [Microsoft]

1929) IEC       International Electrotechnical Commission

1930)  IEEE      Institute of Electrical and Electronics Engineers

1931)   IEF       Information Engineering Facility

1932)  IEMSI     Interactive Electronic Mail Standard

1933)  Identification

1934)  IEN       Internet Engineering Notes

1935)  IETF      Internet Engineering Task Force

1936)  IESG      Internet Engineering Steering Group

1937)  I/F       Interface

1938)  IFC       Internet Foundation Classes

1939)  IFD       Image File Directory

1940) IFF       Interchangeable File Format [Amiga]

1941)  IFG       Incoming Fax Gateway

1942) IFP       Instruction Fetch Pipeline

1943)  IFS       Installable/Integated File System

1944) IFSM      Information Systems Management

1945)  IGA       Integrated Graphics Array

1946) IGC       Integrated Graphics Controller

1947)  IGES      Initial Graphics Exchange Standard

1948) IGFET     Insulated-Gate Field Effect Transistor

1949) IGMP      Internet Group Multicast Protocol

1950)  IGP       Interior Gateway Protocol

1951)   IGRP      Interior Gateway Routing Protocol [Cisco]

1952)  IGS       Internet Go Server

1953)  IHD       Integrated Help Desk [IBM]

1954)  IHV       Independent Hardware Vendor

1955)  IIF       Immediate Interface

1956)  III       Interstate Identification Index [NCIC]

1957)  IIOP      Internet Inter-ORB Protocol

1958)  IIR       Immediate Impulse Response

1959)  IIS       Internet Information Server [Microsoft]

1960) IITF      Information Infrastructure Task Force

1961)  IKE              Internet Key Exchange

1962) IKMP      Internet Key Management Protocol

1963)  IKP       Internet Keyed Payments [IBM]

1964) ILA       Image Light Amplifier

1965)  ILE       Integrated Language Environment [IBM]

1966) ILEC            Incumbent Local Exchange Carrier

1967)  ILP       Instruction-Level Parallelism

1968) ILS       International Language Support

1969) IM                Instant Messenger

1970)  IMAC      Internet Macintosh [Apple]

1971)   IMACS     Image Management and Communication System

1972)  IMAP      Internet Message Access Protocol

1973)  IMAX      Maximum Image

1974)  IMDB      In-Memory Database

1975)  IMDS      Image Data Stream (format) [IBM]

1976)  IME       Input Method Editor

1977)  IMG       Image

1978)  IML       Initial Microcode Load [IBM]

1979)  IMP       Information/Interface Message Processor

1980) IMPA      Intelligent Multi-Port Adapter [DCA]

1981)  IMPP           Internet Messaging and Presence Protocol

1982) IMR       Internet Monthly Report

1983)  IMS       Information Management System +

1984) Intermediate Maintenance Standards

1985)  IMSP      Internet Message Support Protocol

1986) IMTC      International Multimedia Teleconferencing Consortium

1987)  IMTV      Interactive Multimedia Television

1988) IMUL      Integer Multiply

1989) IMUX      Inverse Multiplexer

1990) IN        Input

1991)  INC       Increment

1992) .IND      Index (file name extension)

1993)  .INF      Information (file name extension)

1994) .INFO     Information Services (Domain Name) [Internet]

1995)  INFS      Internet Network File System

1996) .INI      Initialize (file name extension)

1997)  INIT      Initialization + Initialize

1998) INM       Integrated Network Management

1999) INND      Internet News Daemon

2000)INS       Input String + Integrated Network Server

2001) INT       Integer + Internal + Interrupt +

2002)International (organization Domain name) [Internet]

2003) INTA      Interrupt Acknowledge

2004)InterNIC  Internet Network Information Center

2005) INTO      Interrupt if Overflow occurs

2006)I2O       Intelligent Input/Output

2007) I/O       Input/Output

2008)IOC       Inter-Office Channel

2009)IOCC      Input/Output Channel Converter +

2010) Input/Output Controller Chip

2011)  IOCS      Input/Output Control System

2012) IOCTL     Input/Output Control

2013)  IODE      Integrated Development and Debugging

2014) Environment [Symantec]

2015)  IOF              Infrared Optical Film

2016) IOP       Input/Output Processor

2017)  IOPL      Input/Output Privilege Level

2018) IOR       Interoperable Object Reference

2019) IOSGA     Input/Output Support Gate Array

2020)IP        Instruction Pointer + Intellectual Property +

286           Internet Protocol

2021) IPBF      Installed Peripheral Base Flexibility

2022)IPC       Instructions Per Clock + Interprocess Communication

2023) IPCMOS     Interlocked Pipeline CMOS [IBM]

2024)IPCP      Internet Protocol Control Protocol

2025) IPCS      Integrated PC Server

2026)IPDC      Internet Protocol Device Control

2027) IPDS      IBM Personal Dictation System [IBM] +

2028)Intelligent Printer Data Stream [IBM]

2029)IPF               Invalid Page Format

2030) IPFC      Information Presentation Facility Compiler [IBM]

2031)  IPI       Intelligent Peripheral Interface

2032) IPL       Initial Program Load/Loader +

2033) Ion Projection Lithography

2034) IPL     * Information Programming Language

2035) IPM       Images Per Minute + Interpersonal Message

2036) IPMI      Intelligent Platform Management Interface

2037) IPNG      Internet Protocol, next generation

2038) IPP       Internet Printing Protocol

2039) IPR              Intellectual Property Rights

2040)IPSE      Integrated Project Support Environment

2041) IPSEC         Internet Protocol Security

2042)IPTC      International Press Telecommunications Council

2043)  IPX       Internetwork Packet Exchange [Novell]

2044)IQ-Home - Integrated Household Systems

2045) IQL       Interactive Query Language

2046)IR        Infrared

2047) IRC       Internet Relay Chat

2048)IRD       Integrated Receiver/Descrambler

2049)IRDA      Infrared Data Association

2050) IRDS      Information Resource Dictionary System

2051)  IRET      Interrupt Return

2052) IRF       Intermediate Routing Function +

2053) Inheritance Rights Filter [Novell]

2054) IRL       Interactive Reader Language + Inter-Repeater Link

2055) IRLAP     Infrared Link Access Protocol

2056) IRLED     Infrared Light Emitting Diode

2057) IRM       Information Resource Management + Inherent Rights Mask

2058) IRQ       Interrupt Request

2059) IRQL           Interrupt Request Level

2060)IRTF      Internet Research Task Force

2061) IRX       Information Retrieval Experiment

2062)IS        Information System + Interrupt Status

2063) ISA       Industry Standard Architecture (bus) [IBM] +

2064)Instruction-Set Architecture

2065) ISAKMP     Internet Security Association and Key Management Protocol

2066)ISAM      Indexed Sequential-Access Management/Method

2067) ISAPI     Internet Server API [Microsoft]

2068)ISBN      International Standard Book Number

2069)ISC       Instruction Set Computer + Inter-Systems

2070) Communication [IBM]

2071)  ISD       Image Section Descriptor +

2072) Instructional Systems Design

2073) ISDN      Integrated Services Digital Network

2074) ISH       Information Super Highway

2075) ISI       Internally Specified Index

2076) ISIS      Integrated Systems and Information Services

2077) ISKM      Internet Starter Kit for the Macintosh

2078) ISL       Interactive System Language

2079) ISM       Integrated Services Model [IETF] +

2080)Internet Service Manager [Microsoft]

2081) ISMF      Interactive Storage Management Facility

2082)ISOC      Internet Society

2083) ISO       International Organization for Standardization

2084)ISP       Internet Service Provider + Interrupt Stack Pointer +

2085) Interrupt Status Port

2086)ISPF      Interactive System Programming Facility

2087) ISR       Information Storage and Retrieval +

2088)Interrupt Service Routine +

2089)Interrupt Status Register

2090)ISSN      International Standard Serial Number

2091) ISV       Independent Software Vendor

2092)IT        Information Technology

2093) ITB       Information Technology Branch + Intermediate Text Block

2094)ITC       International Typeface Corporation

2095) ITE       Information Technology Equipment

2096)ITF       Interactive Test Facility

2097) ITN       Identification Tasking and Networking

2098)ITP              Internet Transaction Processing

2099)ITR       Input Transaction Record + Internet Talk Radio

2100) ITU       International Telecommunication Union

2101)  ITUG      International Telecommunications User Group

2102) ITU-TIES  ITU-Telecom Information Exchange Services

2103)  ITU-TSS   ITU-Telecommunication Standards Section

2104) ITV       Interactive Television

2105)  ITX       Intermediate Text Block

2106) IU        Integer Unit

2107)  IUAP      Internet User Account Provider

2108) IUS/ITB   Interchange Unit Separator/Intermediate Transmission

2109) Block

2110)  IVDS      Integrated Voice and Data Systems

2111)   IVIS      Interactive Video Information System

2112)  IVL       Independent Vendor League + Intel Verification Lab

2113)   IVR       Interactive Voice Response

2114)  IVS       Interactive Videodisk System

2115)   IVT       Interrupt Vector Table

2116)  IV&V      Independent Verification & Validation

2117)   I-WAY     Information Highway

2118)  IXC       Interexchange Carrier

J...

2119)  JA        Jump Address + Jump if Above

2120) JAD       Joint Application Design/Development

2121)  JAE       Jump if Above or Equal

2122) JANET     Joint Academic Network

2123)  JAR       Java Archive (file format)

2124) JBE       Jump if Below or Equal

2125)  JC        Jump if Carry set

2126) JCL       Job Control Language

2127)  JDBC      Java Database Connectivity

2128) JDK       Java Development Kit

2129) JE        Jump if Equal

2130)  JEDEC     Joint Electronic Devices Engineering Council

2131)   JEIDA     Japanese Electronics Industry Development Association

2132)  JEPI      Joint Electronic Payment Initiative

2133)  JES       Job Entry System

2134)  JFC       Java Foundation Classes

2135)  JFET      Junction Field Effect Transistor

2136)  JFIF      JPEG File Interchange Format

2137)  JFS       Journaled File System [IBM]

2138)  JG        Jump if Greater

2139)  JGE       Jump if Greater or Equal

2140) JIPS      JANET Internet Protocol Service

2141)  JIT       Just-In-Time (compiler)

2142) JL        Jump if Less

2143)  JLE       Jump if Less than or Equal to

2144) JLIP      Joint Level Interface Protocol

2145)  JMAPI     Java Management Application Program Interface

2146) JMF       Java Media Framework [Sun]

2147)  JMP       Jump

2148) JMS       Java Message Service

2149) JNA       Jump if Not Above

2150)  JNAE      Jump if Not Above or Equal

2151)   JNB       Jump if Not Below

2152)  JNBE      Jump if Not Below or Equal

2153)  JNG       Jump if Not Greater

2154)  JNGE      Jump if Not Greater or Equal

2155)  JNI       Java Native Interface

2156)  .JNK      Junk (file name extension)

2157)  JNLE      Jump if Not Less or Equal

2158)  JNO       Jump if No Overflow

2159)  JNP       Jump if No Parity

2160) JNS       Jump if No Sign

2161)  JOE       Java Objects Everywhere

2162) JOHNNIAC* John Neumann Integrator and

2163)  Automatic Computer [Rand Corp.]

2164) JOSS    * Johnniac Open Shop System [Rand Corp.]

2165)  JPE       Jump if Parity Even

2166) JPEG      Joint Photographic Experts Group

2167)  JPL       Jet Propulsion Laboratory

2168) JPNF           Join-Projection Normal Form

2169) JPO       Jump if Parity Odd

2170)  JRE       Java Runtime Environment

2171)   JS        Jump if Sign

2172)  JSP              Java Server Page

2173)  JTAPI     Java Telephony Application Programming Interface

2174)  JZ        Jump if Zero

2175)  JNZ       Jump if Not Zero

2176)  JSS       Java-Script Style Sheet

2177)  JUGHEAD   Jonzy's Universal Gopher Hierarchy

2178)  Excavation and Display [Internet]

2179)  JVM       Java Virtual Machine

K...

2180) K-12      Kindergarten through 12th Grade [US Education System]

2181)  KAM       Keep Alive Memory

2182) Kb        Kilobit

2183)  KB        Keyboard + Kilobyte (1,024 bytes)

2184) KBD       Keyboard (also KEYB)

2185)  KBD$      Keyboard [OS/2]

2186) KBE       Knowledge Based Engineering

2187)  Kbps      Kilobits Per Second

2188) KBps      Kilobytes Per Second

2189) KDT       Key Definition Table

2190) KEFIR     Key Findings Reporter [GTE]

2191)  KEYBBE    Foreign language KEYBoard program - Belgium

2192) KEYBBR    Foreign language KEYBoard program - Brazil

2193)  KEYBCF    Foreign language KEYBoard program - Canadian-French

2194) KEYBCZ    Foreign language KEYBoard program - Czechoslovakia

2195)  (Czech)

2196) KEYBDK    Foreign language KEYBoard program - Denmark

2197)  KEYBFR    Foreign language KEYBoard program - France

2198) KEYBGR    Foreign language KEYBoard program - Germany

2199) KEYBHU    Foreign language KEYBoard program - Hungary

2200)KEYBIT    Foreign language KEYBoard program - Italy

2201) KEYBLA    Foreign language KEYBoard program - Latin America

2202)KEYBNL    Foreign language KEYBoard program - Netherlands

2203) KEYBNO    Foreign language KEYBoard program - Norway

2204)KEYBPL    Foreign language KEYBoard program - Poland

2205) KEYBPO    Foreign language KEYBoard program - Portugal

2206)KEYBSF    Foreign language KEYBoard program - Swiss-French

2207) KEYBSG    Foreign language KEYBoard program - Swiss-German

2208)KEYBSL    Foreign language KEYBoard program - Czechoslovakia

2209)(Slovak)

2210) KEYBSP    Foreign language KEYBoard program - Spain

2211)  KEYBSU    Foreign language KEYBoard program - Finland

2212) KEYBSV    Foreign language KEYBoard program - Sweden

2213)  KEYBUK    Foreign language KEYBoard program - United Kingdom

2214) KEYBUS    Foreign language KEYBoard program - United States

2215)  KEYBYU    Foreign language KEYBoard program - Yugoslavia

2216) KHz       Kilohertz

2217)  KIF       Knowledge Interchange Format

2218) KIS       Knowbot Information Service [Internet]

2219) KPI       Kernel Programming Interface

2220)KQML      Knowledge Query and Manipulation Language

2221) KSH       Korn Shell (program) [Unix]

2222)KSPH      Keystrokes Per Hour

2223) KSR       Keyboard Send Receive

2224)KRS       Knowledge Retrieval System

L...

2225) L2F       Layer Two Forwarding [Cisco]

2226)L2TP      Layer Two Tunneling Protocol

2227) LADDR     Layered Device Driver Architecture [Microsoft]

2228)LALL      Longest Allowed Lobe Length

2229)LAN       Local Area Network

2230) LANACS    Local Area Network Asynchronous Connection Server

2231)  LANDP     LAN Distributed Platform

2232) LANE      Local Area Network Emulation

2233) LANG      Language

2234) LAP              Linux Application Platform

2235) LAPB      Link Access Procedure Balanced (protocol)

2236) LAPD      Link Access Procedure on the D-Channel (protocol)

2237) LAPM      Link Access Procedure for Modems

2238) LAR       Load Access Rights

2239) LASER     Light Amplification by Stimulated Emission of Radiation

2240)LASTport  Local Area Storage Transport (protocol) [DEC]

2241) LAT       Local Access Terminal +

2242)Local Area Transport [DEC]

2243) LATA      Local Access and Transport Area

2244)LAVC      Local Area VAX Cluster

2245) LAWN      Local Area Wireless Network

2246)LB        Left Button (of 2 or 3 button Mouse)

2247) LBA       Logical Block Addressing

2248)LBL       Label

2249)LBR       Librarian

2250) .LBR      Library (file name extension)

2251)  LBT       Listen Before Talk

2252) LBX       Local Bus Accelerator

2253) LCA       Lotus Communications Architecture [Lotus]

2254) LCC       Leadless Chip Carrier

2255) LCCM         LAN Client Control Manager [IBM]

2256) LCD       Liquid Crystal Display + Lowest Common Denominator

2257) LCF       Low Cost Fiber

2258) LCK       Library Construction Kit [Microsoft FoxPro]

2259) LCP       Link Control Protocol

2260)LCR       Least Cost Routing + Line Control Register

2261) LCSD      Laminate Chip Signal Diode

2262)LCU       Last Cluster Used

2263) LDA       Logical Device Address

2264)LDAP      Lightweight Directory Access Protocol [IBM]

2265) LDC       Lotus Development Corporation

2266)LDDS      Long Distance Discount Services (company)

2267) LDM       Long Distance Modem

2268)LDP             Label Distribution Protocol

2269)LDT       Local Descriptor Table

2270) LE        Less or Equal

2271)  LEA       Load Effective Address

2272) LEAD          Live Early Adoption and Demonstration [W3C]

2273) LEAF      Law Enforcement Access Field

2274) LEC       Local Area Network Emulation Client +

2275) Local Exchange Carrier

2276) LED       Light Emitting Diode

2277) LEL       Link, Embed and Launch-to-edit [Lotus]

2278) LEM       Language Extension Module

2279) LEN       Low Entry Networking

2280)LEO       Low Earth Orbit

2281) LES       Local Area Network Emulation Server

2282).LET      Letter (file name extension)

2283) LEX       Lexicon

2284)LF        Line Feed

2285) L2F              Layer 2 Forwarding (protocol) [Cisco]

2286)LFAP      Lightweight Flow Admission Protocol

2287) LFI       Last File Indicator

2288)LFN       Long File Name

2289)LFT       Low Function Terminal [IBM]

2290)LFU       Least Frequently Used

2291) LGA       Leadless Grid Array

2292)LGDT      Load Global Descriptor Table

2293) LGPL           Lesser General Public License

2294)LIAS      Library Information Access System

2295) .LIB      Library (file name extension)

2296)LIC       Line Interface Coupler [IBM]

2297) LICS      Lotus International Character Set [LDC]

2298)LIDT      Load Interrupt Descriptor Table

2299)LIEP      Large Internet Exchange Packet [Novell]

2300) LIF       Low Insertion Force

2301)  LIFO      Last In, First Out

2302) LILO      Last In, Last Out

2303) LIM       Lotus/Intel/Microsoft

2304) LIMA      Lotus/Intel/Microsoft/AST

2305) LIMDO     Light Intensity Modulation Direct Overwrite

2306) LIMM      Light Intensity Modulation Method

2307) LIMS      Library Information Management System

2308) LINUX     (Operating system named after Linus Torvalds)

2309) LIP       Large Internet Packet

2310)  LIPS      Lightweight Internet Person Schema +

2311)   Logical Inferences Per Second

2312)  LISP      List Processing (Language)(See HLL)

2313)  LISTSERV  List Server [Internet]

2314)  LIU       LAN Interface Unit

2315)  LIW       Long Instruction Word

2316)  LLC       Logical Link Control

2317)  LLDT      Load Local Descriptor Table

2318)  LLF       Low Level Format

2319)  LMB       Left Mouse Button

2320) LMBCS     Lotus Multi-Byte Character Set [Lotus]

2321)  LMD       Last Modification Date

2322) LMDS      Local Multipoint Distribution Service

2323) LMI       Link/Local Management Interface

2324) LMS       Lotus Messaging Switch [Lotus]

2325) LMSW      Load Machine Status Word

2326) LMU       LAN Management Utilities [IBM] +

2327) LAN Manager for Unix

2328) LN        Load Number + Logarithm (Natural)

2329) LN:DI     Lotus Notes:Document Imaging

2330) LNK       Link

2331)  LOB       Line of Business

2332) LOC       Lines Of Code + Loop On-Line Control

2333) LOCIS     Library of Congress Information System

2334) LOD       Letter Of Destruction + Level Of Detail

2335) LODSB     Load String Byte

2336) LOG       Logarithm (Base 10)

2337) LOGO      (Programming Language)(See HLL)

2338) LON       Local Operating Network

2339) LOOPE     Loop while Equal

2340) LOOPNE    Loop while Not Equal

2341)  LOOPNZ    Loop while Not Zero

2342) LOOPZ     Loop while Zero

2343) LORE      Line Oriented Editor

2344) LPAR      Logic Programming and Automated Reasoning

2345) LPC       Local Procedure Call

2346) LPD       Line Printer Daemon (protocol) [Berkley]

2347) LPI       Lines Per Inch

2348) LPL       Lotus Programming Language [Lotus 1-2-3] [LDC]

2349) LPM       Lines Per Minute

2350) LPN       Logical Page Number

2351)  LPR       Line Printer + Line Printer Remote

2352) LPS       Low-Power Schottky

2353) LPT       Line Printer Terminal

2354) LPT1      First Parallel Printer Port

2355) LPT2      Second Parallel Printer Port

2356) LPT3      Third Parallel Printer Port

2357) LQ        Letter Quality

2358) LQM       Link Quality Monitoring (protocol)

2359) LR        Link Register

2360) LRC       Local Register Cache +

2361)  Longitudinal Redundancy Check

2362) LRL       Least Recently Loaded

2363) LRM       Language Reference Manual + Least Recently-Used Master

2364) .LRS      Language Resource (file name extension) [WordPerfect]

2365) LRU       Least Recently Used

2366) LSA       LAN and SCSI Adapter [IBM] + Line Sharing Adapter +

2367) Local Security Authority [Microsoft]

2368) LSAPI     License Services Application Program Interface

2369) LSB       Least Significant Bit

2370) LSC       Least Significant Character

2371)  LSD       Least Significant Digit

2372) LSI       Large Scale Integration

2373) LSL       Link Support Layer + Load Segment Limit

2374) LST       List

2375) .LST      List (file name extension)

2376) LTO       Linear Tape Open

2377) L2TP           Layer 2 Transport Protocol [Cisco]

2378) LTR       Left-To-Right + Letter + Load Task Register

2379) LU        Logical Unit (Also LUN)

2380) LUA       Logical Unit Application (interface)

2381)  LUI       Local User Input

2382) LUIS      Library User Information Service

2383) LUN       Logical Unit Number

2384) LUT       Lookup Table

2385) LV        Logical Volume [IBM]

2386) LVDS      Low-Voltage Differential Signaling

2387) LVM       Logical Volume Management [IBM]

2388) LW        Lazy Write

2389) .LYR      Lyrics (music file name extension)

2390) LZW       Lempel-Ziv-Welch (algorithm)

M...

2391)  mA        Milliampere

2392) MAC       Macintosh (Apple Macintosh Computer) +

2393) Media/Medium Access Control +

2394) Message Authentication Code

2395) MAC     * Multiple Access Computers

2396) .MAC      MacPaint (file name extension) +

2397) Macro (file name extension)

2398) MACH      Multilayer Actuator Head [Epson]

2399) MADE      Manufacturing and Automated Design Engineering

2400)MADYMO    Mathematical Dynamic Modeling [TNO]

2401) MAE       Merit Access Exchange + Metropolitan Area Ethernet

2402)MAGMA     Minimal Architecture for Generalized Markup Applications

2403) mAh       Milliampere-Hour

2404)MAI       Multiple Applications Interface

2405) .MAI      Mail (file name extension)

2406)MAJC      Microprocessor Architecture for Java Computing [Sun]

2407) MAN       Manual [Unix] + Metropolitan Area Network

2408)MANIAC  * Mathematical Analyzer Numerical

2409)Integrator and Computer

2410) MANPAGE   Manual Page [Unix]

2411)  MAP       Maintenance Analysis Procedures +

2412) Manufacturing Automation Protocol +

2413)  Memory Allocation Map

2414) .MAP      Linker Map (file name extension)

2415)  MAPI      Mail/Messaging Applications Programming

2416) Interface [Microsoft]

2417)  MAPICS    Manufacturing, Accounting and Production

2418) Information Control System [IBM]

2419) MARC      Machine Readable Cataloging +

2420)Multi-Technology Automated Reader Card

2421) MARVEL    Machine-Assisted Realization of the Virtual

2422)Electronic Library [Library of Congress]

2423) MASM      Macro Assembler [Microsoft]

2424)MASS      Maximum Availability and Support

2425) Subsystem [Parallan]

2426)MAT       Maintenance Access Terminal

2427) MAU       Media Access/Adapter Unit + Multistation Access Unit

2428)MAVDM     Multiple Application VDM

2429)MAX       Maximum

2430) MB        Megabyte (1,024 kilobytes) +

2431)  Middle Button (of 3 button Mouse)

2432) MBASIC    Microsoft BASIC [Microsoft]

2433) MBCS      Multi-Byte Character Set [IBM]

2434) MBONE     Multicast Backbone [Internet]

2435) MBps      Megabytes Per Second

2436) Mbps      Megabits Per Second

2437) MBR       Master Boot Record

2438) MBX       Mailbox

2439) MCA       Micro Channel Adapter/Architecture [IBM]

2440)MCAD      Mechanical Computer Aided Design

2441) MCB       Memory Control Block

2442)MCF       Meta Content Framework

2443) MCGA      Multicolor Graphics Array

2444)MCH           Memory Controller Hub [Intel]

2445) MCI       MCI Communications Corp. (name from initials of

2446)original company - Microwave Communications, Inc.) +

2447) Media Control Interface [Microsoft]

2448)MCL       Microsoft Compatibility Labs [Microsoft]

2449)MCM       Multi-Chip Module

2450) MCNE      Master Certified Novell Engineer [Novell]

2451)  MC-PGA    Metallized Ceramic - Pin Grid Array

2452) MCPS      Microsoft Certified Product Specialist [Microsoft]

2453) MC-QFP    Metallized Ceramic - Quad Flat Pack

2454) MCR       Modem Control Register

2455) MCSD      Microsoft Certified Systems Developer [Microsoft]

2456) MCSE      Microsoft Certified Systems Engineer [Microsoft]

2457) MCU       Microcontroller Unit + Multi-Chip Unit [DEC] +

2458) Multipoint Control Unit

2459) MD        Make Directory + Mini Disk [Sony] + Monochrome Display

2460)MDA       Monochrome Display Adapter +

2461) Multidimensional Analysis

2462)MDDBMS    Multidimensional Data Base Management System

2463) .MDF      Menu Definition File (file name extension)

2464)MDI       Memory Display Interface +

2465) Multiple Document Interface

2466)MDIC      Manchester Decoder and Interface Chip [AT&T]

2467) MDK       Multimedia Developers Kit [Microsoft]

2468)MDLP      Mobile Data Link Protocol

2469)MDR       Minimum Design Requirement

2470) MDX           Multi-Dimensional Expressions

2471)  MDY       Month Day Year

2472) .ME       Opening Information (file name extension) (As in READ.ME)

2473) MEB       Memory Expansion Board

2474) MED           Minimum Expected Delay

2475) MEG       Megabyte

2476) MEM       Memory

2477) .MEN      Menu (file name extension)

2478) MERCI     Multimedia European Research Conferencing Integration

2479) MES       Manufacturing Execution System

2480)MESI      Modified, Exclusive, Shared and Invalid (protocol)

2481) MET       Memory Enhancement Technology [Hewlett-Packard]

2482).MET      Metafile (file name extension)

2483) MFC       Microsoft Foundation Class [Microsoft]

2484)MFFS      Microsoft Flash File System [Microsoft]

2485) MFI       Multifunction Interpreter

2486)MFIOP     Multifunction I/O Processor

2487) MFLOPS    Million Floating Point Operations Per Second

2488)MFM       Modified Frequency Modulation

2489)MFP       Multi-Function Peripheral/Product

2490)MFPI      Multifunction Peripheral Interface

2491) MFS       Macintosh File System [Macintosh] +

2492)Magnetic Tape Field Search + Memory File System

2493) Modified Filing System [Revelation Technologies]

2494)MFT       Master File Table +

2495) Multiprogramming with a Fixed number of Tasks

2496)MGA       Monochrome Graphics Adapter

2497) MGCP      Media Gateway Control Protocol

2498)MGE       Modular GIS Environment

2499)MGET      Multiple Get [Unix]

2500) MGML      Minimal Generalized Markup Language

2501)  MGR       Manager

2502) MHS       Message Handling Service + Message Handling System

2503) MHz       Megahertz

2504) MI        Management Interface

2505) MIB       Management Information Base

2506) MIC       Message Integrity Check

2507) MICR      Magnetic Ink Character Recognition

2508) MICRO     One-millionth

2509) MICS      Macro Interpretive Commands

2510)  MIDI      Musical Instrument Digital Interface

2511)   MIF       Management Information Format

2512)  .MIF      Management Information Files (file name extension)

2513)  MIG       Metal In Gap

2514)  MII       Microsoft/IBM/Intel

2515)  MIL       Machine Interface Layer [Go Corporation] +

2516)  .MIL      Military (Domain name) [Internet]

2517)  MIM       Map Image Metafile + Metal-Insulator-Metal (screen)

2518)  MIMD      Multiple Instruction Multiple Data Stream (processor)

2519)  MIME      Multipurpose Internet Mail Extension [Internet]

2520) MI/MIC    Mode Indicate/Mode Indicate Common

2521)  MIN       Minimum + Mobile Identification Number

2522) MIND      Microsoft Internet Developer [Microsoft]

2523) MINUET    Minnesota Internet Users Essential Tools [Internet]

2524) MIPS      Million Instructions Per Second

2525) MIS       Management Information System +

2526) Multimedia Information Sources [Internet]

2527) MISC      Miscellaneous

2528) MIX       Member Information Exchange

2529) .MIX           Microsoft Picture It! (format)

2530) MKDIR     Make Directory

2531)  ML        Machine Language + Meta Language

2532) MLAPI     Multilingual Application Programming Interface

2533) MLC       Multilayer Ceramic +

2534) Multilevel Cell (program) [Internet]

2535) MLE       Multi-Line Editor

2536) MLID      Multi-Link Interface Driver

2537) MLM       Mailing List Manager [Internet]

2538) MLPPP     Multilink PPP

2539) MM        Minutes + Month

2540) MMA       Microcomputer Managers Association

2541)  MMC       Matched Memory Cycle + Microcomputer Marketing Council +

2542) Microsoft Management Console [Microsoft]

2543) MMCD      MultiMedia Compact Disk

2544) MMCX      Multimedia Communication Exchange [Lucent Technologies]

2545) MMDS        Multi-channel Multipoint Distribution Service

2546) MMI       Man-Machine Interface

2547) MMIS      Materials Manager Information System

2548) MMPM      Multi Media Presentation Manager

2549) MMU       Memory Management Unit

2550) MMVF      Multimedia Video File [NEC]

2551)  MMX       Matrix Manipulation Extensions [Intel] +

2552) Multimedia Extensions

2553) MNOS      Metal Nitride Oxide Semiconductor

2554) MNP       Microcom Networking Protocol [Microcom]

2555) .MNU      Menu (fine name extension)

2556) MO        Magneto-Optical (disk drive)

2557) MOB       Memory-Order Buffer

2558) MOBO      Mother Board

2559) MOD       Module + Modulus

2560) MODEM     Modulator Demodulator

2561)  MOHLL     Machine Oriented High Level Language

2562) MOLAP     Multidimensional On-Line Analytical Processing

2563) MOM       Manufacturing Operations Management +

2564) Message-Oriented Middleware +

2565) Microsoft Office Manager [Microsoft]

2566) MONET     Multiwavelength Optical Networking

2567) MONO      Monaural

2568) MOO       MUD, Object Oriented [Internet]

2569) MOP       Maintenance Operations Protocol

2570) MOPS      Million Operations Per Second

2571)  MOS       Magneto-Optic Storage + Mean Opinion Score +

2572) Metal Oxide Semiconductor

2573) MOSFET    Metal Oxide Semiconductor Field Effect Transistor

2574) MOTD      Message Of The Day

2575) MOV       Metal Oxide Varistor + Move

2576) MOVS      Move String

2577) MP        Massively Parallel (processing) + Multiple Processors

2578) MP3       MPEG Audio Layer 3

2579) .MPA           Memo Pad Archive (file name extension) [Palm]

2580) MPC       Multimedia Personal Computer + Multipath Channel

2581)  MPCS      Mission Planning and Control Station (Software)

2582) MPE       Multiple Programming Executive [HP]

2583) MPEG      Moving Picture Experts Group

2584) MPI       Message Passing Interface + Multiprecision Integer

2585) MPM       Message Passing Library [IBM]

2586) MPMD      Multiple Processor/Multiple Data

2587) MPOA      Multi-Protocol over Asynchronous-Transfer-Mode

2588) MPP       Massively Parallel Processing/Processors +

2589) Message Posting Protocol + Message Processing Program

2590) MPQP      Multi-Protocol Quad Port [IBM]

2591)  MPR       Multipart Repeater + Multi Protocol Router [Novell]

2592) MPS       Multiprocessor Specification

2593) MPTN      Multi-Protocol Transport Network

2594) MPTS      Multi-Protocol Transport Services

2595) MPU       Microprocessor Unit

2596) MQI       Messaging and Queuing Interface [IBM]

2597) MR        Magneto Resistive + Modem Ready

2598) MRAM        Magnetic Random Access Memory

2599) MRCF      Microsoft Realtime Compression Format

2600)MRCI      Microsoft Realtime Compression Interface

2601) MRI       Magnetic Resonance Imaging

2602)MRM       Most Recently-Used Master

2603) MRO       Multi-Region Operation

2604)MRP       Materials Requirement Planning

2605) MRPL      Main Ring Path Length

2606)MRS       Media Recognition System

2607) MRT       Mean Repair Time

2608)MRU       Maximum Receive Unit

2609)MS        Memory System + Message Store + Microsecond +

2610) Microsoft Corporation + Millisecond

2611)  MSACM     Microsoft Audio Compression Manager [Microsoft]

2612) MSAU      Multi-Station Access Unit

2613)  MSAV      Microsoft Anti Virus [Microsoft]

2614) MSB       Most Significant Bit

2615)  MSBF      Mean Swaps Between Failures

2616) MSC - Management Systems Consulting, Inc.

2617)  MSCDEX    Microsoft Compact Disc Extensions [Microsoft]

2618) MSCHAP    Microsoft Challenge Handshake Authentication

2619) Protocol [Microsoft]

2620)MSCS          Microsoft Cluster Server [Microsoft]

2621) MSD       Mass Storage Device + Most Significant Digit +

2622)Microsoft System Diagnostics [Microsoft]

2623) MSDE      Microsoft Data Engine

2624)MSDN      Microsoft Developer Network [Microsoft]

2625) MS-DOS    Microsoft - Disk Operating System [Microsoft]

2626)MSDR      Multiplexed Streaming Data Request

2627) MSDS      Microsoft Developer Support [Microsoft]

2628)MSFR      Minimum Security Function Requirements [IBM]

2629)MSG       Message

2630) .MSG      Program Message (file name extension)

2631)  MSI       Medium Scale Integration

2632) MSIE      Microsoft Internet Explorer [Microsoft]

2633) MSL       Map Specification Library + Mirrored Server Link

2634) MSMQ      Microsoft Message Queue-Server [Microsoft]

2635) MSN       Microsoft Network [Microsoft]

2636) MSO       Multiple-Systems Operator

2637) .MSP      Microsoft Paint (file name extension) [Microsoft]

2638) MSRP      Manufacturer Suggested Retail Price

2639) MSS       Mass Storage System +

2640)Multiprotocol Switched Services [IBM]

2641) MSTS      Microsoft Terminal Server [Microsoft]

2642)MSW       Machine Status Word

2643) MTA       Message Transfer Agent + Multiple Terminal Access

2644)MTBB      Mean Time Between Breakdowns

2645) MTBF      Mean Time Between Failures

2646)MTBJ      Mean Time Between Jams

2647) MTF       Microsoft Tape Format [Microsoft] +

2648)Modulation Transfer Function

2649)MTRP      Maximum Transfer Rate Performance

2650) MTS       Message Transfer Service/System +

2651)  Microsoft Transaction Server [Microsoft] +

2652) Multichannel Television Sound

2653) MTST      Magnetic Tape Selectric Typewriter [IBM]

2654) MTT       Multi-Transaction Timer

2655) MTTD      Mean Time To Diagnose

2656) MTTF      Mean Time To Failure

2657) MTTR      Mean Time To Repair

2658) MTU       Maximum Transmission Unit

2659) MUA       Mail User Agent

2660)MUD       Multi-User Dialogue/Dimension/Domain/Dungeon [Internet]

2661) MUG           Multiuser Game

2662)MUL       Multiply

2663) MULTICS   Multiplexed Information and Computing Service

2664)MUMPS     Massachusetts General Hospital Utility

2665) Multi-Programming System (Programming Language)

2666)MUSE      Multi-User Shared Environment

2667) .MUSEUM   Museums (Domain Name) [Internet]

2668)MUSIC       Multiparty Multimedia Session Control

2669)MUT       Monitor Under Test

2670) MUX       Multiplexer

2671)  mV        Millivolt

2672) MVB       Multimedia Viewer Book

2673) MVC       Multimedia Viewer Compiler

2674) MVD           Multivalued Dependencies

2675) MVDM      Multiple Virtual DOS Machines

2676) MVGA      Monochrome Video Graphics Array

2677) MVIP      Multi-Vendor Integration Protocol

2678) MVP       Multimedia Video Processor

2679) MVS       Multiple Virtual Storage

2680)MVT       Multiprogramming with a Variable number of Tasks

2681) MX        Mail Exchanger [Internet]

2682)MXS       Microsoft Exchange Server [Microsoft]

2683) MZR       Multiple Zone Recording

N...

2684)NAC       Network Adapter Card

2685) NACD      National Association of Computer Dealers

2686)NACS      National Advisory Committee on Semiconductors

2687) NAE       Not Above or Equal

2688)NAK       Negative Acknowledgment

2689)NAL             Novell Application Launcher [Novell]

2690)NAM       Number Assignment Module

2691) .NAME     Names-Individuals (Domain Name) [Internet]

2692)NAMPS     Narrow-Band Analog Mobile Phone Service [Motorola]

2693) NAND      Not And

2694)NANO      One thousand-millionth

2695) NAP       Network Access Point

2696)NAPLPS    North American Presentation Level Protocol

2697) Syntax (graphics)

2698)NAS       Network Access Server + Network Application Support [DEC] +

2699)Network Attached Storage

2700) NASA      National Aeronautics and Space Administration

2701)  NASDAQ    National Association of Securities Dealers

2702) Automatic Quotation

2703) NASI      NetWare Asynchronous Services Interface [Novell]

2704) NASIRC    NASA Automated Systems Internet Response Capability

2705) NASKER    NASA Ames Kernel (benchmark)

2706) NAT       Network Address Translators

2707) NAU       Network Addressable Unit

2708) NAVSTAR                     Navigation Satellite Timing and Ranging

2709) NAWS      Negotiate About Window Size

2710)  NBE       Not Below or Equal

2711)   NBI       Nothing But Initials

2712)  NBMA      Non-Broadcast Multi Access

2713)  NBS       Narrowband Socket + National Bureau of Standards +

2714)  Numeric Backspace

2715)  NC        Network Computer + No Carry + Numerical Control

2716)  NCA       Network Communications Adapter +

2717)  Network Computing Architecture [Oracle]

2718)  NCC       Network Control Center

2719)  NCD       Network Computing Device

2720) .NCF      Netware Command File [Novell]

2721)  NCGA      National Computer Graphics Association

2722) NCIC      National Crime Information Center

2723) NCMT    * Numerical Control for Machine Tools

2724) NCOS      Network Computer Operating System

2725) NCP       NetWare Core Protocol + Not Copy Protected +

2726) Network Control Processor/Program/Protocol

2727) NCR       National Cash Register (Company)

2728) NCSA      National Center for Supercomputing Applications

2729) NCSC      National Computer Security Center

2730) NCSI      Network Communications Services

2731)  Interface [Network Products Corp.]

2732) NDB       Non-Directional Beacon

2733) NDDK      Network Device Development Kid [Microsoft]

2734) NDEF      Not to be Defined

2735) NDIS      Network Device/Driver Interface Specification

2736) NDL       Network Data Language

2737) NDMP      Network Data Management Protocol

2738) NDN       Non-Delivery Notice

2739) NDP       Numeric Data Processor

2740) NDR       Network Data Representation

2741)  NDRO      Non-Destructive Read Out

2742) NDS       NetWare Directory Service [Novell]

2743) .NDX      Index (file name extension)

2744) NEC       Nippon Electric Company

2745) NED       NASA Extragalactic Database [NASA]

2746) NEG       Negative + Negate

2747) NEMA      National Electrical Manufacturers Association

2748) NEP       Network Entry Point

2749) NES       National Education Supercomputer

2750) NEST      Novell Embedded Systems Technology [Novell]

2751)  .NET      Networks (Domain Name) [Internet]

2752) NetBIOS   Network Basic Input/Output System [IBM]

2753) NetBEUI   NetBIOS Extended User Interface [IBM]

2754) NETMON    Network Monitor

2755) .NEW      New Information (file name extension)

2756) NEWS      NetWare Early Warning System [Frye Computer] +

2757) Network Extensible Window System

2758) NEWS.     Current events [USENET Newsgroup Category]

2759) NEXT      Near-End Crosstalk

2760) NFF       No Fault Found

2761)  NFS       Network File System [Sun]

2762) NG        No Good

2763) NGE       Not Greater or Equal

2764) NGI       Next-Generation Internet

2765) NHC       National Hurricane Center

2766) NHR       National Handwriting Recognition

2767) NHRP      Next Hop Resolution Protocol

2768) N/I       Non-Interlaced

2769) NIA       Next Instruction Address

2770) NIC       Network Information Center [Internet] +

2771)  Network Interface Card +

2772) Numeric Intensive Computing

2773) NICAD     Nickel-Cadmium

2774) NICOLAS   Network Information Center OnLine Aid System [NASA]

2775) NID       New Interactive Display [NEC] + Next ID

2776) NII       National Information Infrastructure

2777) NIM       Network Installation Management [IBM]

2778) NIMH      Nickel-Metal Hydride

2779) NIO       Native Input/Output

2780) NIPS      Network I/Os Per Second

2781)  NIR       Network Information Retrieval

2782) NIS       Network Information Service [Unix]

2783) N-ISDN    Narrowband ISDN + National ISDN

2784) NISO      National Information Standards Organization

2785) NISP      Networked Information Services Project

2786) NIST      National Institute for Standards and Technology

2787) NITC      National Information Technology Center

2788) NIU       Network Interface Unit

2789) NJE       Network Job Entry (protocol) [IBM]

2790) NL        New Line

2791)  NLE       Not Less or Equal

2792) NLM       NetWare Loadable Module [Netware]

2793) NLP       Natural-Language Processing

2794) NLQ       Near Letter Quality

2795) NLSFUNC   National Language Support Function

2796) NLV       National Language Version [IBM]

2797) NMI       Non-Maskable Interrupt

2798) NMM       NetWare Management Map [NetWare]

2799) NMOS      Negative Channel Metal-Oxide Semiconductor

2800)NMP       Network Management Protocol [AT&T]

2801) NMS       Network Management System [Novell]

2802)NN        Network Node + No News [Internet]

2803) NNI       Network to Network Interface

2804)NNM       Network Node Manager

2805) NNTP      Network News Transfer Protocol [Internet]

2806)NOC       Network Operations Center

2807) .NOM      Individual with Personal Site (Domain Name) [Internet]

2808)NOP       No Operation

2809)NOPAC     Network OPAC

2810) NOR       Not Or

2811)  NOS       Network Operating System

2812) NPA       Network Printer Alliance + Numbering Plan Area

2813)  NPI       Network Printer Interface

2814) NPL       Nonprocedural Language

2815)  NPS       Novell Productivity Specialist [Novell]

2816) NPT       Non-Programmable Terminal

2817)  NPTN      National Public Telecomputing Network

2818) NPU       Natural Processing Unit

2819) NPX       Numeric Processor Extension

2820)NQS       Network Queuing System [Cray]

2821) NRC       National Research Council (Canada)

2822)NREN      National Research and Education Network

2823) NRM       Network Resource Manager

2824)NRZ       Not Return to Zero

2825) NRZI      Non Return to Zero Inverted

2826)NS        Nanosecond (one-billionth of a second) +

2827) National Semiconductor (as in Ns16550 UART) +

2828)Network Supervisor + Non Stop

2829)NSAP      Network Service Access Point

2830) NSAPI     Netscape Server API [Netscape]

2831)  NSA POLY  National Security Agency Polygraph

2832) NSERC     National Sciences and Engineering Research Council

2833) (Canada)

2834) NSF       National Science Foundation

2835) NSFNET    National Science Foundation Network

2836) NSI       NASA Science Internet

2837) NSLOOKUP  Name Server Lookup [Unix]

2838) NSM       Netscape Server Manager [Netscape]

2839) NSP       Native Signal Processing [Intel] + Network Service

2840)Provider

2841) NSSC      NASA Standard Spacecraft Computer

2842)NSTC      National Science and Technology Council

2843) NSTL      National Software Testing Labs

2844)NT        New Technology [Microsoft]

2845) NT-1      Network Terminator Type 1

2846)NTAS      NT Advanced Server [Microsoft]

2847) NTF       No Trouble Found

2848)NTFS      New Technology File System [Microsoft]

2849)NTIA      National Telecommunications and

2850) Information Administration

2851)  NTIS      National Technical Information Service

2852) NTP       Network Time Protocol

2853) NTRAS     NT Remote Access Services [Microsoft]

2854) NTSA      NetWare Telephony Services Architecture [Novell]

2855) NTSC      National Television Standards Committee

2856) NTU       Network Termination Unit

2857) NUI       Network User Identification +

2858) Network User Interface +

2859) Notebook User Interface [Go Corporation]

2860)NUL       Null + (dummy device) + (no device)

2861) NUMA      Non-Uniform Memory Access

2862)NV        No Overflow

2863) NVM       Non-Volatile Memory

2864)NVOD      Near-Video On Demand

2865) NVP       Nominal Velocity of Propagation

2866)NVRAM     Non-Volatile Random Access Memory

2867) NVT       Network Virtual Terminal +

2868)Novell Virtual Terminal [Novell]

2869)NWS       NetWare Web Server [Netware]

2870) NYM       Anonymous

O...

2871)  OAB       One-to-All Broadcast

2872) OAD       Open Architecture Driver [Bernoulli]

2873) OAG       Official Airline Guide + Online Air Guide

2874) OAI       Open Applications Interface

2875) OAS       One-to-All Scatter

2876) OBD       On Board Diagnostics

2877) OBEX      Object Exchange [Borland]

2878) OBJ       Object

2879) OC        Optical Carrier

2880)OCE       Open Collaborative Environment [Apple]

2881) OCF       Objects Components Framework [Borland]

2882)OCL       Operation Control Language + Operator Control Language

2883) OCR       Optical Character Recognition

2884)OCS       On-Card Sequencer

2885) OCX       OLE Custom Control

2886)ODA       Open Document Architecture

2887) ODAPI     Open Database Application Programming

2888)Interface [Borland]

2889)ODBC      Object-Oriented Database Connectivity +

2890)Open Data Base Connectivity [Microsoft]

2891) ODBMS     Object-Oriented Database Management System  (also

2892)see OODMS)

2893) ODI       Open Datalink Interface [Novell] +

2894)Open Device Interconnect [NetWare]

2895) ODIF      Open Document Interchange Format

2896)ODL       Object Definition Language

2897) ODM       Object Data Manager [IBM] +

2898)Optimized Distribution Model [Compaq]

2899)ODMA      Open Document Management API

2900)ODP       Open Distributed Processing

2901) ODS       Open Data Services [Microsoft] +

2902)Operational Data Store

2903) ODSI      Open Directory Service Interface [Microsoft]

2904)ODT       Open Desktop

2905) OEM       Original Equipment Manufacturer

2906)OEP       Operand Execution Pipeline

2907) OF        Overflow Flag

2908)OFB       Output Feedback (mode)

2909)OFDM      Orthogonal Frequency Division Multiplexing

2910) OFMT      Output Format for Numbers

2911)  OFS       Object File System [Microsoft] + Output Field Separator

2912) OFX       Open Financial Exchange

2913)  OH        Off Hook

2914) OHCI      Open Host Controller Interface

2915)  OIDL      Object Interface Definition Language

2916) OIS       Office Information System

2917)  OLAP      Online Analytical Processing

2918) OLCP      Online Complex Processing

2919) .OLD      Old version (file name extension)

2920)OLE       Object Linking and Embedding [Microsoft]

2921) OLGA      Online Guitar Archive

2922)OLI       Optical Line Interface [AT&T]

2923) OLMC      Output Logic Macrocell

2924)OLSP      Online Service Provider

2925) OLTP      Online Transaction Processing

2926)OM        Object Manager

2927) OMA       Object Management Architecture [Microsoft]

2928)OME       Open Messaging Environment (protocol)

2929)OMF       Object Module Format [Microsoft] +

2930) Open Media Framework + Open Message Format

2931)  OMG       Object Management Group

2932) OMI       Open Messaging Interface [Lotus]

2933) OML       Object Manipulation Language

2934) OMR       Optical Mark Recognition

2935) ONC       Open Network Computing [Sun]

2936) ONDS      Open Network Distribution Services [IBM]

2937) ONE       Open Network Environment [Netscape]

2938) ONMS      Open Network Management System

2939) ONU       Optical Network Unit

2940)OOB       Out Of Band

2941) OODB      Object-Oriented Database

2942)OODMS     Object-Oriented Database Management System (also

2943) see ODBMS)

2944)OOL       Object-Oriented Language

2945) OOOS      Object-Oriented Operating System

2946)OOPL      Object-Oriented Programming Language

2947) OOPS      Object Oriented Programming and Systems

2948)OOS       Object-Oriented Systems +

2949)Off-line Operating Simulator

2950) OOT       Object-Oriented Technology

2951)  OOUI      Object Oriented User Interface

2952) OP        Operation + Optical + Output

2953) OPAC      Online Public Access Catalog [Internet]

2954) OPC       Organic/Optical Photoconductor

2955) OPCODE    Operational Code

2956) OPD       Operand

2957) OPI       Open Prepress Interface

2958) OPM       Operations Per Minute

2959) OPS       Open Profiling Standard + Oracle Parallel Server [Oracle]

2960)OPT       Open Protocol Technology

2961) .OPT      Options (file name extension)

2962)OPUS      Octal Program Updating System

2963) OQL       Object Query Language

2964)ORACLE    On-Line Inquiry and Report Generator (UNIX DB program)

2965) ORB       Object Request Broker [Microsoft]

2966)ORDVAC  * Ordnance Variable Automatic Computer

2967) .ORG      Non-Profit Organizations (Domain name) [Internet]

2968)ORI       Online Retrieval Interface

2969).ORI      Original (file name extension)

2970) OROM      Optical Read-Only Memory

2971)  ORS       Output Record Separator

2972) OS        Operating System

2973) OS/2      Operating System/2 [IBM]

2974) OSA       Open Scripting/System Architecture

2975) OSD       Open Software Description/Distribution

2976) OSE       Office Server Extensions [Microsoft]

2977) OS/E      Operating System/Environment

2978) OSF       Open Software Foundation

2979) OSI       Open Systems Interconnection

2980)OSM       Off-Screen Model

2981) OSP       On-Screen Programming + Optical Storage Processor

2982)OSPF      Open Shortest Path First

2983) OSQL      Object Structured Query Language

2984)OSR2      OEM Service Release 2 [Microsoft]

2985) OSS       Open Source Software

2986)OT        Object Technology

2987) OTA       Operation-Triggered Architecture

2988)OTDR      Optical Time Domain Reflectometer

2989)OTF       Open Token Foundation

2990)OTP       One-Time Programmable

2991) OUI       Organizationally Unique Identifier

2992)OURS      Open Users Recommended Solutions

2993) .OUT      Outlines (file name extension)

2994)OUTS      Output String

2995) OV        Overflow

2996)OVAL      Object-Based Virtual Application Language [Psion]

2997) .OVL      Program Overlay (file name extension)

2998).OVR      Program Overlay (file name extension)

2999)OWL       Object/Open Windows Library [Borland]

P...

3000) P3P       Platform for Privacy Preferences Project

3001)  PAB       Personal Address Book

3002) PABX      Private Automatic Branch Exchange

3003) PACE      Priority Access Control Enabled [3Com]

3004) PACS      Picture Archiving and Communication System

3005) PACS-L    Public Access Computer Systems List [Internet]

3006) PAD       Packet Assembler/Disassembler

3007) PADS      Pen Application Development System [Slate Corporation]

3008) PAIH      Public-Access Internet Host [Internet]

3009) PAIS      Public-Access Internet Site [Internet]

3010)  .PAK      Packed (compressed file name extension) [NoGate

3011)   Consulting]

3012)  PAL       Paradox Applications Language [Borland] +

3013)  Phase Alternating Line + Programmed Array Logic +

3014)  Programming Assembly Language

3015)  .PAL      Palette (file name extension)

3016)  PALC      Plasma-Addressed Liquid Crystal (display)

3017)  PALS      Principles of the Alphabet Literacy System

3018)  PAM            Pluggable Authentication Module (library) +

3019)  Pulse Amplitude Modulation

3020) PAN       Personal Area Network [GTE]

3021)  PAP       Packet-level Procedure +

3022) Password Authentication Protocol +

3023) Printer Access Protocol

3024) PAR       Personal Animation Recorder + Parallel

3025) PARA      Paragraph

3026) PARC      Palo Alto Research Center [XEROX]

3027) PA-RISC   Precision Architecture-RISC [HP]

3028) .PAS      PASCAL source code (file name extension)

3029) PASCAL    (Programming Language named for Blaise Pascal)

3030) PAT             Port Address Translation

3031)  .PAT      Patch + Pattern (file name extensions)

3032) PATN      Promotional Port Access Telephone Number

3033) PAX       Portable Archive Exchange [Unix]

3034) PB        Petabyte (1,024 terabytes)

3035) (One Million Billion characters of information)

3036) PBA       Printed Board Assembly

3037) PBE       Prompt By Example

3038) PBGA      Plastic Ball Grid Array

3039) PBR             Policy-Based Routing [Cisco]

3040) PBX       Private Branch Exchange

3041)  PC        Personal Computer + Printed Circuit + Program Counter

3042) PCACIAS   Personal Computer Automated Calibration Interval

3043) Analysis System

3044) PCB       Printed Circuit Board + Program Control Block

3045) PCBC      Plain/Propagating Cipher Block Chaining

3046) PCD       Photo Compact Disk

3047) PC-DOS    Personal Computer - Disk Operating System [IBM]

3048) PCEB      PCI to EISA Bridge [Intel]

3049) PCI       Peripheral Component Interconnect/Interface

3050) PCIC      PC-Card Interrupt Controller

3051)  PC-I/O    Program Controlled I/O

3052) PCL       Printer Command Language [HP] + Process Control Language

3053) PCM       Personal Computer Manufacturer +

3054) Printer Cartridge Metric [HP] +

3055) Pulse Code Modulation

3056) PCMA      Paired Carrier Multiple Access

3057) PCMC      PCI, Cache, Memory Controller [Intel]

3058) PCMCIA    Personal Computer Memory Card International Association

3059) PCMIM     Personal Computer Media Interface Module

3060) PCN       Personal Computer Network

3061)  PCNFS     Personal Computer Network File System

3062) PCO       Point of Control and Observation

3063) PCS       Patchable Control Store +

3064) Personal Communication Services/System +

3065) Personal Conferencing Specification +

3066) Planning Control Sheet + Print Contrast Signal +

3067) Process Control Systems + Program Counter Store +

3068) Project Control System

3069) PCT       Private Communications Technology

3070) .PCT      Picture (file name extension)

3071)  .PCX      Picture Image (file name extension)

3072) PD        Phase-Change Dual + Public Domain

3073) PDA       Personal Digital Assistant

3074) .PDB      Palm Database (file name extension)

3075) PDC       Primary Domain Controller

3076) PDD       Physical Device Driver + Portable Digital Document

3077) PDF       Package Definition File + Portable Document Format +

3078) Portable Document File + Processor Defined Function +

3079) Program Development Facility

3080) .PDF      Printer Description (file name extension)[Borland,Lotus]

3081)  PDH       Plesiosynchronous Digital Hierarchy

3082) PDIAL     Public Dialup Internet Access List [Internet]

3083) PDL       Page Description Language + Program Description Language

3084) + Program Design Language

3085) PDM       Product Data Management

3086) PDN       Public Data Network

3087) PDO       Portable Distributed Objects [Next]

3088) PDP       Parallel Data Processing + Plasma Display Panel +

3089) Programmable Data Processor +

3090) (DEC Computer System Designation, i.e. PDP-8, PDP-11)

3091)  PDS       Packet Driver Specification + Partitioned Data Set +

3092) Planetary Data System + Portable Document Software +

3093) Processor Direct Slot [Macintosh]

3094) PDSS      Post Development and Software Support

3095) PDT       Performance Diagnostic Tool [IBM] +

3096) Programmable Drive Table

3097) PDU       Plug Distribution Unit + Protocol Data Unit

3098) .PDX      Paradox files (file name extension) [Borland] +

3099) Printer Description Extension (file name extension)

3100)  PE        Parity Even + Processing Element + Protect Enable

3101)   PEA       Pocket Ethernet Adapter

3102)  PEL       Picture Element [IBM]

3103)  PEM       Privacy-Enhanced Mail [Internet]

3104)  PEN SDK   Pen Computing Software Development Kit

3105)  PEP       Packet Exchange Protocol +

3106)  Packetized Ensemble Protocol [Telebit]

3107)  PERC      Power Edge RAID Controller

3108)  PERL      Practical Extraction and Report Language [Unix]

3109)  PERT      Program Evaluation and Review Technique

3110)   PES       Positioning Error Signal + Processor Enhancement Socket

3111)    Processor Upgrade Socket

3112)   PET       Print Enhancement Technology [Compaq]

3113)   .PFB      Printer Font Binary (file name extension)

3114)   PFE       Programmer's File Editor

3115)   .PFM      Printer Font Metrics (file name extension) [Windows]

3116)   PFN       Page Frame Number

3117)   PFR       Portable Font Resource + Power-Fail Restart

3118)   PGA       Pin Grid Array + Professional Graphics Adapter [IBM]

3119)   PGC       Program Group Control [Microsoft]

3120)  PGDN      Page Down

3121)   .PGL      Graphics (file name extension) [Hewlett-Packard]

3122)  PGM       Program

3123)  PGML      Precision Graphics Markup Language

3124)  PGP       Pretty Good Privacy (name of encryption program)

3125)  .PGP      ProGram Parameter (file name extension) [AutoCAD]

3126)  PGUP      Page Up

3127)  PHIGS     Programmers' Hierarchical Interactive Graphics

3128)  Standards

3129)  .PHO      Phone List (file name extension)

3130)  PHS       Personal Handyphone System

3131)   PI        Program Interruption

3132)  PIA       Peripheral Interface Adapter

3133)  PIC       Personal Information Carrier +

3134)  Personal Intelligent Communicator +

3135)  Platform for Internet Content +

3136)  Priority Interrupt Controller +

3137)  Program Interrupt Controller

3138)  PICS      Platform for Internet Content Selection [W3C]

3139)  PICT      Picture

3140)  PID       Process Identification Number + Product ID +

3141)   Proportional, Integral, Derivative

3142)  PIER      Procedures for Internet/Enterprise Renumbering

3143)  PIF       Picture Interchange Format File +

3144)  Program Information File

3145)  PII       Program Integrated Information

3146)  PILOT     Programmed Inquiry Learning Or Teaching

3147)  PilotACE* Pilot Automatic Computing Engine

3148)  PIM       Personal Information Manager +

3149)  Primary Interface Module +

3150)  Protocol-Independent Multicast

3151)   PIN       Personal Identification Number +

3152)  Process Identification Number [Unix]

3153)  PINE      Pine Is Not Elm (original usage) +

3154)  Program for Internet News & Email (present usage)

3155)  PING      Packet Internet Groper

3156)  PIO       Parallel Input/Output + Processor Input/Output +

3157)  Programmed Input/Output

3158)  PIP       Pattern and Information Processing +

3159)  Picture In Picture + Problem Isolation Procedure +

3160)  Programmable Interconnect Point

3161)   PIPO      Parallel In, Parallel Out

3162)  PIR       Protocol Independent Routing

3163)  PIT       Programmable Interval Timer

3164)  PIXEL     Picture Element

3165)  PJPEG     Progressive JPEG

3166)  PK                Primary Key

3167)  PKC       Public Key Cryptography

3168)  PKI              Public Key Infrastructure

3169)  PL        Plus

3170)  .PL       Perl Language (file name extension)

3171)   PLA       Programmable Logic-Array

3172)  PLATO     Programmed Logic for Automatic Teaching Operations

3173)  PLC       Programmable Logic Controller

3174)  PLCC      Plastic Leadless Chip Carrier

3175)  PLD       Programmable Logic Device

3176)  PLDS      Pilot Land Data System [NASA]

3177)  PLL       Phase Locked Loop

3178)  .PLL      Prelinked Library (file name extension) [Clipper]

3179)  PL/M      Programming Language for Micros

3180)  PLS       Primary Link Station

3181)   PLV       Production Level Video

3182)  PL/1    * Programming Language One

3183)  PM        Presentation Manager [IBM] +

3184)  Preventative Maintenance + Process Manager

3185)  .PM6           PagerMaker6 (file name extension) [Corel]

3186)  P-MAIL    Paper Mail

3187)  PMD       Packet Mode Data

3188)  PMMU      Paged Memory Management Unit

3189)  PMOS      Positive Channel Metal Oxide Semiconductor

3190)  PMR       Problem Management Report [IBM]

3191)   PMS       Policy Management System

3192)  PN        Processing Node

3193)  P/N:      Part Number

3194)  PNA       Programmable Network Access

3195)  PNG       Portable Network Graphics

3196)  PNNI      Private Network-to-Network Interface

3197)  PNP       Plug And Play

3198)  PO        Parity Odd

3199)  POA             Portable Object Adapter

3200) POC       Point Of Contact

3201)  POD       Plain Old Dos + Publishing On Demand

3202) POE       Power Open Environment

3203) POH       Power-On Hours

3204) POL       Problem Oriented Language

3205) POP       Point Of Presence + Pop from Stack + Post Office Protocol

3206) POP3      Post Office Protocol, Version 3

3207) POPA      Pop All Registers

3208) POPF      Pop Flags

3209) POR       Power-On-Reset

3210)  POS       Point Of Sale + Positive + Programmable Object Select

3211)   POSIX     Portable Operating System Interface for Unix

3212)  POST      Power-On Self Test

3213)  POSTNET   Postal Numeric Encoding Technique (bar code)

3214)  POTS      Plain Old Telephone Service + Plain Old Time-Sharing

3215)  POWER     Performance Optimization with Enhanced RISC [IBM]

3216)  PowerPC   Performance Optimization with Enhanced RISC-Performance

3217)  Computing

3218)  PP        Parallel Port

3219)  P2P              Peer To Peer + People To People

3220) P3P              Platform for Privacy Preferences

3221)  PPA       Pixel Processing Accelerator

3222) .PPD      PostScript Printer Description (file name extension)

3223) PPDS      Personal Printer Data Stream [IBM]

3224) PPGA      Plastic Pin Grid Array

3225) PPI       Precise Pixel Interpolation

3226) PPM       Pages Per Minute

3227) PPP       Point-to-Point Protocol [Internet]

3228) PPPOE        Point-to-Point Protocol Over Ethernet

3229) PPS       Packets Per Second + Power Personal Systems [IBM]

3230) PPTP      Point-to-Point Tunneling Protocol [Microsoft]

3231)  PQA       Palm Query Application

3232) PQFP      Plastic Quad Flat Pack

3233) PQO            Parallel Query Option

3234) PRACSA    Public Remote Access Computer Standards Association

3235) PRAM      Parallel Random-Access Machine +

3236) Parameter Random Access Memory

3237) .PRC      Pilot Resource (file name extension) [Palm Pilot]

3238) .PRD      Printer Driver (file name extension) [Microsoft]

3239) PRE       Preformatted [HTML]

3240) PREP      Power PC Reference Platform [IBM/Motorola]

3241)  PRF       Pulse Repetition Frequency

3242) .PRF      Preferences (file name extension) [Grammatik IV]

3243) .PRG      Program (file name extension)

3244) PRI       Primary-Rate Interface

3245) PRINTF    Print with Formatting [C Programming Language]

3246) PRISM     Photo-Refractive Information Storage Material

3247) .PRJ      Project (file name extension) [Borland]

3248) PRMD      Private Management Domain [X.400]

3249) PRML      Partial-Response Maximum-Likelihood

3250) .PRO      Professionals (Domain Name) [Internet] +

3251)  Profile (file name extension)

3252) PROC      Procedure

3253) PROFS     Professional Office System [IBM]

3254) PROG      Program + Programmer

3255) PROLOG    Programming In Logic (Programming Language)(See HLL)

3256) PROM      Programmable Read Only Memory

3257) PRN       Printer

3258) .PRS      Printer (file name extension) [WordPerfect]

3259) PRTSC     Print Screen

3260) PS        Proportional Spacing

3261)  .PS       PostScript (file name extension)

3262) PS/2      Programming System 2 [IBM]

3263) PSAPI     Presentation Space Application Programming Interface

3264) PSC       Personal Super Computer + Print Server Command +

3265) Product Service Center

3266) PSDN      Packet-Switched Data Network

3267) PSDS      Packet-Switched Data Service

3268) PSERVER   Print Server [NetWare]

3269) PSF       Permanent Swap File

3270) PSID      PostScript Image Data

3271)  PSINET    (formerly Performance Systems International)

3272) PSM       Printing Systems Manager

3273) PSN       Packet Switching Network +

3274) Processor Serial Number

3275) PSP       Personal Software Products (group) [IBM] +

3276) Program Segment Prefix

3277) PSPDN     Packet-Switched Public Data Network

3278) P-SRAM    Pseudo-Static Random Access Memory

3279) PSRT      PostScript Round Table [GEnie]

3280) PSS              Process Status Structure

3281)  PSTN      Public Switched Telephone Network

3282) PSU       Power Supply Unit

3283) PSW       Program Status Word

3284) .ps.Z     Compressed PostScript (file name extension) [Unix]

3285) PT        Page Table

3286) P/T       Part Time

3287) PTD       Parallel Transfer Disk Drive

3288) PTE       Page Table Entry

3289) PTF       Problem Temporary/Trouble Fix [IBM]

3290) PTI       Packet Type Identifier

3291)  PTT       Postal Telephone & Telegraph

3292) PUB       Public (directory) [Internet] + Publish

3293) .PUB      Publication (file name extension) [Ventura]

3294) PUN       Physical Unit Number

3295) PUP       PARC Universal Packet (protocol)

3296) PURL          Persistent URL

3297) PUS       Processor Upgrade Socket

3298) PUSHA     Push All Registers

3299) PUSHF     Push Flags

3300) PVC       Permanent Virtual Circuit + Polyvinyl Chloride

3301)  PVM       Parallel Virtual Machine +

3302) Pass-through Virtual Machine (protocol) [IBM]

3303) PVP       Parallel Vector Processing

3304) PVS       Parallel Visualization Server

3305) PW        Password

3306) PWB       Printed Wire Board +

3307) Programmer's Workbench [Microsoft]

3308) PWD       Print Working Directory [Unix]

3309) PWR       Power

3310)  PWSCS     Programmable Workstation Communication Services [IBM]

3311)   .PX       Primary Index (file name extension) [Paradox]

Q...

3312)  QA        Quality Assurance

3313)  QAM       Quadrature Amplitude Modulation

3314)  QBE       Query By Example

3315)  QBF       Query by Form

3316)  QBIC      Query By Image Content [IBM]

3317)  QC        Quality Control

3318)  QD        Querty/Dvorak

3319)  QDA       Qualitative Data Analysis

3320) QDOS      Quick and Dirty Operating System

3321)  .QDI      Quicken Dictionary (file name extension) [Intuit]

3322) .QDT      Quicken Data (file name extension) [Intuit]

3323) QEMM      Quarterdeck Expanded Memory Manager [Quarterdeck Corp.]

3324) QFA       Quick File Access

3325) QFE       Quick-Fix Engineering [Microsoft]

3326) QFP       Quad Flat Pack

3327) QIC       Quality Information Using Cycle Time [Hewlett-Packard] +

3328) Quarter-Inch Cartridge

3329) .QIF      Quicken Import File/Interchange Format

3330) (file name extension)

3331)  .QMT      Quicken Memorized List (file name extension) [Intuit]

3332) .QNX      Quicken Indexes to Data (file name extension) [Intuit]

3333)  QOS       Quality Of Service

3334) QPG       Quantum Phase Gate

3335)  QPSK      Quadrature Phase Shift Keying

3336) QTC       Quicktime Conferencing [Macintosh]

R...

3337)  RA        Return Authorization

3338) .RA       Real Audio (file name extension)

3339) RACF      Resource Access Control Facility

3340) RAD       Rapid Application Development

3341)  RADAR     Radio Detection And Ranging +

3342) Rights, Availabilities, Distribution Analysis

3343) and Reporting [Disney]

3344) RADB      Routing Arbiter Data Base

3345) RADIUS    Remote Authentication Dial-In User Service

3346) RADSL     Rate Adaptive Digital Subscriber Line

3347) RAG       Row Address Generator

3348) RAID      Redundant Arrays of Independent Disks +

3349) Redundant Arrays of Independent Drives +

3350) Redundant Arrays of Inexpensive Disks

3351)  RAIS      Redundant Arrays of Inexpensive Systems

3352) RALU      Register Arithmetic Logic Unit

3353)  RAM       Random Access Memory

3354) .RAM      Real Audio Metafile (file name extension)

3355)  RAMDAC    Random Access Memory Digital-to-Analog

3356) Converter [Sierra]

3357)  RAMP      Remote Access Maintenance Protocol [Internet]

3358) RAND      Random

3359) RAP       Rapid Application Prototyping

3360) RARP      Reverse Address Resolution Protocol

3361)  RAS       Random Access Storage +

3362) Reader Admission System [British Library] +

3363) Reliability, Availability and Serviceability +

3364) Remote Access Service + Row Address Select

3365) RASAPI    Remote Access Service Application Programming

3366) Interface [Microsoft]

3367) .RAT      Rating (file name extension)

3368) RAVE      Rendering Acceleration Virtual Engine [Apple Computer]

3369) .RAW      Raw Data (file name extension)

3370) RB        Right Button (of 2 or 3 button Mouse)

3371)  RBBS      Remote Bulletin Board System

3372) RBCS      Remote Bar Code System

3373)  RBOC      Regional Bell Operating Company

3374) .RC       Resource (file name extension)

3375)  RCL       Rotate Carry Left

3376) RCP       Remote Control Panel + Remote Copy [Internet] +

3377)  Restore Cursor Position

3378) RCPT      Recipient

3379) RCR       Rotate Carry Right

3380) RCS       Records Communications Switching System +

3381)  Revision Control System [Unix]

3382) RD        Receive Data + Remove Directory

3383) R&D       Research and Development

3384) RDA       Remote Database Access

3385) RDB       Receive Data Buffer + Relational Database

3386) RDBMS     Relational Database Management System

3387) RDCLK     Received Timing Clock

3388) RDF       Resource Description Framework [W3C]

3389) RDO       Remote Data Object

3390) RDP       Reliable Datagram Protocol + Remote Desktop Protocol

3391)  RDR            Remote Data Recovery

3392) RDRAM     Rambus DRAM

3393) RDSL          (See DSL)

3394) RDSR      Receiver Data Service Request

3395) RDTO      Receive Data Transfer Offset [IBM]

3396) RDX       Realistic Display Mixer

3397) .REC      Recorder (file name extension) +

3398) Recreational or Entertainment Activities (Domain

3399) Name) [Internet]

3400) REC.      Recreation [USENET Newsgroup Category]

3401)  .REF      Reference (file name extension)

3402) REG       Register

3403) REGAL     Rigid Epoxy Glass Acrylic Laminate

3404) RELSECT   Relative Sector

3405) REM       Remark + Remote + Ring Error Monitor

3406) REN       Rename + Ringer Equivalence Number

3407) REP       Repeat

3408) REPE      Repeat while Equal

3409) REPNE     Repeat while Not Equal

3410)  REPNZ     Repeat while Not Zero

3411)   REPZ      Repeat while Zero

3412)  REQ       Request

3413)  REREG     Re-Register

3414)  RES       Remote Execution Service + Reset + Resolution

3415)  .RES      Resource (file name extension)

3416)  RET       Resolution Enhancement Technology [HP] + Return

3417)  RETR      Retrieve

3418)  REX       Relocatable Executable

3419)  REXEC     Remote Execution

3420) REXX      Restructured Extended Executor (language) [IBM]

3421)  RF        Radio Frequency

3422) RFC       Request For Comments [Internet]

3423) RFD       Request for Discussion [Internet]

3424) RFI       Radio Frequency Interference + Request for Information

3425) RFID      Radio Frequency Identification

3426) RFP       Request for Proposal

3427) RFQ       Request for Quotation

3428) RFS       Remote File Sharing + Remote File System

3429) RFT       Revisable Form Text + Rich Text Format

3430) RFU       Reserved For Future Use

3431)  RGB       Red-Green-Blue (color model)

3432) RI        Referential Integrity + Ring Indicate

3433) RID       Relative Identifier

3434) RIFF      Resource Interchange File Format [Microsoft]

3435) RIM       Remote Installation and Maintenance [Microsoft]

3436) RIME      RelayNet International Message Exchange

3437) RIP       Raster Image Processor + Remote Imaging Protocol +

3438) Routing Information Protocol [Novell]

3439) RIPEM     Riordan's Internet Privacy Enhanced Mail

3440) RIPS      Raster Image Processing System

3441)  RISC      Reduced Instruction Set Computing

3442) RIT       Raw Input Thread [Microsoft]

3443) RJE       Remote Job Entry

3444) RLD       Received Line Detect

3445) RLE       Run Length Encoded

3446) RLL       Run Length Limited

3447) RLN       Remote LAN Node [DCA]

3448) RLOGIN    Remote Login

3449) RLSD      Received Line Signal Detected

3450) RLSI    * Ridiculously Large-Scale Integration

3451)  RM        Reset Mode

3452) RMA       Return Material Authorization +

3453) Return to Manufacturer Authorization

3454) RMB       Right Mouse Button

3455) RMDIR     Remove Directory

3456) RMI       Remote Messaging Interface +

3457) Remote Method Invocation [Sun]

3458) RMON      Remote Monitor/Monitoring

3459) RMP       Remote Maintenance Processor [IBM]

3460) RMS       Record Management Services + Root Mean Square

3461)  RMW       Read-Modify-Write

3462) RN        Read News [Internet]

3463) RNA       Remote Network Access [Microsoft]

3464) RND       Random

3465) RNG       Random Number Generator

3466) RNP       Regional Network Provider

3467) R-O       Read Only

3468) ROB       Reorder Buffer [Intel]

3469) ROI             Return On Investment

3470) ROL       Rotate Left

3471)  ROLAP     Relational On-Line Analytical Processing

3472) ROM       Read Only Memory

3473) ROOM      Real-Time Object-Oriented Modeling

3474) ROP       Raster Operation + RISC Operation

3475) ROPES       Rapid Object-Oriented Process for

286           Embedded Systems

3476) ROR       Rotate Right

3477) ROS       Read-Only Storage [IBM]

3478) ROSCOE    Remote Operating System Conversational Online

3479) Environment

3480) ROT       Running Object Table

3481)  RPC       Remote Procedure Call

3482) RPG       Report Program Generator (Programming Language)

3483) RPL       Resident Programming Language +

3484) Requested Privilege Level

3485) RPN       Real Page Number + Reverse Polish Notation

3486) RPRINTER  Remote Printer [NetWare]

3487) RPPROM    Reprogrammable PROM

3488) RPR       Relative Performance Rating

3489) RPT       Repeat

3490) RPQ       Request for Price Quotation

3491)  RQBE      Relational Query By Example [Fox Pro]

3492) RR        Real Reality

3493) RRP             Recommended Retail Price

3494) RS        Radio Shack +

3495) Recommended Standard (as in RS-232) [EIA] +

3496) Record Separator + Request to Send

3497) RSA129    (129 digit cryptographic security number named after

3498) its inventors: Drs. Ronald L. Rivest, Adi Shamir and

3499) Leonard M. Adleman)

3500) RSAC      Recreational Software Advisory Council

3501)  RSCS      Remote Spooling Communications System

3502) RSD       Route Server Daemon

3503) RSH       Remote Shell

3504) RSI       Repetitive Strain Injury (Carpal Tunnel Syndrome)

3505) RSL       Request-and-Status Link

3506) RSP       Required Space Character

3507) RSPX      Remote Sequenced Packet Exchange

3508) RST       Reset + Restart

3509) RSTS      Resource Sharing Time Sharing [Digital]

3510)  RSVP      Resource Reservation Protocol

3511)   RSX       Realistic Sound Experience +

3512)  Real Time Resource Sharing Executive

3513)  RT        Real Time + RISC Technology + Run Time

3514)  R/T       Receive/Transmit

3515)  RTAM      Remote Terminal Access Method

3516)  RTC       Real-Time Clock

3517)  RTDM      Real-Time Data Migration

3518)  RTEL      Reverse Telnet [Internet]

3519)  RTF       Rich Text Format

3520) RTL             Raster Transfer Language +

3521)  Register Transfer Language/Level +

3522) Resistor Transistor Logic + Right-To-Left +

3523) Run Time Library

3524) RTM       Response Time Monitor + Runtime Manager [Borland]

3525) RTMP      Routing Table Maintenance Protocol

3526) RTN       Reuters Transaction Network

3527) RTOS      Real-Time Operating System

3528) RTP       Rapid Transport Protocol + Real-Time Protocol

3529) RTS       Remote Takeover System + Request To Send

3530) RTSP      Real-Time Streaming Protocol

3531)  RTTI      Runtime Type Information

3532) RTTY      Radio Teletypewriter (Communications)

3533)  RTV       Real Time Video

3534) RTX       Run Time Extension

3535)  RUN       Rewind/Unload [IBM]

3536) RVA       Relative Virtual Address

3537)  RVI       Reverse Interrupt

3538) R/W       Read/Write

3539) RWIN      Receive Window

3540) RWM       Read-Write Memory

3541)  RX        Receiver

3542) RXD       Receive Data

S...

3543) SA        Selective Availability

3544) SAA       Systems Application Architecture [IBM]

3545) SABRE     Semi-Automatic Business Research Environment

3546) SAC       Single Attachment Concentrator

3547) SACL      System Access Control List

3548) SADL      Synchronous Data Link Control [Racal-Vadic]

3549) SAINT   * Symbolic Automatic Integrator

3550) SAL       Shift Arithmetic Left

3551)  SAM       Serial Access Memory + Sequential Access Method +

3552) Security Accounts Manager [Microsoft] +

3553)  Single Application Mode [Microsoft]

3554) SAN       Storage/System Area Network

3555)  SANE      Standard Apple Numeric Environment

3556) SAP       Second Audio Program + Service Access Point [DEC] +

3557)  Service Advertising Protocol +

3558) Symbolic Assembly Program +

3559) Systems, Applications and Products (company)

3560) SAPI      Speech Application Program Interface [Microsoft]

3561)  SAR       Segmentation and Reassembly +

3562) Shift Arithmetic Right +

3563) Successive Approximation Register +

3564) Synthetic Aperature Radar

3565) SARG          Search Argument

3566) SAS       Sales Accounting System + Single Attached Station +

3567) Single Audio System + Statistical Analysis System

3568) SASI      Shugart Associates System Interface (SCSI originated

3569) from SASI)

3570) SATAN     Security Administrator Tool for Analyzing Networks

3571)  .SAV      Saved (file name extension)

3572) SAVDM     Single Application VDM

3573)  SB        Sound Blaster [Creative Labs] + Sound Board

3574) SBA       Scene Balance Algorithms [Kodak]

3575)  SBB       Subtract With Borrow

3576) SBC       Single-Board Computer

3577)  SBCS      Single-Byte Character Set

3578) SBI       Sound Blaster Instrument

3579) .SBR      Source Browser (file name extension) [Borland]

3580) SBS              Small Business Server +

3581)  Smart Battery Specification [Duracell/Intel]

3582) .SC       Script (file name extension)

3583) SCA             Scalable Computing Architecture [HP]

3584) SCADA     Supervisory Control and Data Acquisition

3585) SCAM      SCSI Configuration Automatically

3586) SCAS      Scan String

3587) SCB       Subsystem Control Block [IBM]

3588) SCC       Serial Communications Controllers +

3589) Serial Controller Chip +

3590) Synchronous Channel Check [IBM]

3591)  SCCS      Source Code Control System

3592) SCD       Standard Color Display

3593) S-CDMA    Synchronous Code-Division Multiple Access

3594) SCF       System Control Facility

3595) SCI       Scalable Coherent Interface +

3596) Serial Communications Interface

3597) SCI.      Science [USENET Newsgroup Category]

3598) SCIL      Serial Control Interface Logic

3599) SCLM      Software Configuration and Library Management [IBM]

3600) SCM       ScreenCam Format [Lotus] +

3601)  Software Configuration Management + Station Class Mark

3602) SCO       Santa Cruz Operation (Software Company) +

286           Synchronous Connection-Oriented (link)

3603) SCOPE     Simple Communications Programming Environment

3604) [Hayes]

3605) SCP       Save Cursor Position + Subsystem Control Port +

3606) System Control Program

3607) SCR       Silicon Controlled Rectifier

3608) .SCR      Script (file name extension)

3609) SCRN      Screen (video display)

3610)  SCRS      Scalable Cluster of RISC Systems

3611)   SCSA      Signal Computing System Architecture [Dialogic]

3612)  SCSI      Small Computer Systems Interface

3613)  SD        Send Data + Super Density

3614)  SDA       Software Delivery Agent [IBM] + Software Disk Array +

286           Source Data Automation + System Display Architecture [Digital]

3615)  SDAM      Single DOS Application Mode

3616)  SDB       Symbolic Debugger [Unix]

3617)  SDD       Software Description Database [Internet] +

3618)  Subscriber Data Document +

3619)  System Distribution Directory

3620) SDF       Space Delimited File + Space Delimited Format

3621)  .SDF      Standard Data Format (file name extension)

3622) SDH       Synchronous Digital Hierarchy

3623) SDI       Selective Dissemination of Information +

3624) Single Document Interface

3625) Software Development Interface [Mosaic]

3626) SDK       Software Development Kit [Microsoft]

3627) SDL       Specification and Description Language

3628) SDLC      Synchronous Data Link Control (protocol)

3629) SDM       System Development Multitasking

3630) SDMS      SCSI Device Management System [NCR]

3631)  SDN       Software Defined Network [AT&T]

3632) SDNS      Secure Data Network Service

3633) SDR       Streaming Data Request

3634) SDRAM     Synchronous DRAM

3635) SD-ROM    Super Density ROM

3636) SDS       Sysops Distribution System

3637) SDSL      (See DSL)

3638) SD_STB    Streaming Data Strobe [IBM]

3639) SDTV      Standard Definition Television

3640) SDV       Switched Digital Video [AT&T]

3641)  SDX       Storage Data Acceleration

3642) SEA       Standard Extended Attribute [OS/2]

3643) .SEA      Self Extracting Archive (file name extension) [Macintosh]

3644) SEAC    * Name of first computer to use transistors, built by

3645) (National Bureau of) Standards Eastern Automatic

3646) Calculator (Also see SWAC)

3647) SEAL      Segmentation and Reassembly Layer (protocol) +

3648) Screening External Access Link [Digital-DEC]

3649) SEC       Single Error Correction

3650) SECAM     Sequentiel Couleur Avec Memoire

3651)  (Sequential Color With Memory)

3652) SECC      Single Edge Contact Cartridge

3653) SED       Stream Editor + Stream-Oriented Editor

3654) SEG       Segment

3655) SEH       Structured Exception Handling

3656) SEL       Select

3657) SEM       Scanning Electron Microscope +

3658) Standard Electronic Module +

3659) Strategic Enterprise Management [SAP]

3660) SEPP      Secure Encryption Payment Protocol

3661)  SER       Serial

3662) SERCOS    Serial Real-Time Communications System

3663) SET       Secure Electronic Transaction +

3664) Softwave Engineering Technology

3665) .SET      Driver Set (file name extension) [Lotus 1-2-3] [LDC] +

3666) Image Settings (file name extension) [Paradox]

3667) SETEXT    Structure Enhanced Text [Internet]

3668) SEU       Smallest Executable Unit

3669) SF        Sign Flag

3670) SFC       System File Checker

3671)  SFD       Start Frame Delimiter

3672) SFDR      Spurious-Free Dynamic Range

3673) SFN       Short File Name

3674) SFQL      Structured Full-text Query Language

3675) SFS       System File Server

3676) SFT       System Fault Tolerance

3677) SFX       Sound Effect(s)

3678) SGA       Shared Global Area

3679) SGCP           Simple Gateway Control Protocol

3680) SGEN      Signal Generator + System Generator

3681)  SGDT      Store Global Descriptor Table

3682) SGI       Silicon Graphics, Inc.

3683) SGM       Shaded Graphics Modeling

3684) SGML      Standard Generalized Markup Language

3685) SGR       Set Graphics Rendition

3686) SGRAM     Synchronous Graphics RAM

3687) S/H       Sample and Hold

3688) SHA       Secure Hash Algorithm [NSA]

3689) SHAR      Shell Archive

3690) SHED      Segmented Hypergraphic Editor

3691)  SHG       Segmented Hypergraphics

3692) SHL       Shift Logical Left

3693) SHR       Shift Logical Right

3694) SHTML     Server-Side Include HyperText Markup Language

3695) S-HTTP    Secure Hypertext Transfer Protocol

3696) SHV       Standard High-Volume

3697) .SHW      Show (file name extension)

3698) SI        Shift-In + Source Index + System Information +

3699) System Integration

3700) SIC       Standard Industrial Code

3701)  SID       Security Identifier + Serial Input Data +

3702) Station Identification [AT&T] +

3703) Symbolic Interactive Debugger + System ID

3704) SIDF      System Independent Data Format

3705) SIDH      System Identification for Home Systems

3706) SIDT      Store Interrupt Descriptor Table

3707) SIFT      Stanford Information Filtering Tool

3708) SIG       Special Interest Group

3709) SIGCAT    Special Interest Group on CD-ROM Applications

3710)  and Technology

3711)   SIM       Simulator

3712)  SIMD      Single Instruction, Multiple Data-stream (processor)

3713)  SIMM      Single In-line Memory Module

3714)  SIMTEL    Simulation and Teleprocessing

3715)  SIMULA    Simulation (language)

3716)  SIO       Serial Input/Output (communications driver)

3717)  SIP       Session Initiation Protocol + Single In-line Package

3718)  SIPC      Simply Interactive Personal Computer [Microsoft]

3719)  SIPO      Serial In, Parallel Out

3720) SIPP      Single In-line Pin Package

3721)  SIR       Serial Infrared [Hewlett-Packard]

3722) SIRDS     Single-Image Random Dot Stereogram

3723) SI/SO     Serial In/Serial Out + Shift In/Shift Out

3724) SIT       Special Information Tones

3725) .SIT      Stuff-It (compressed file name extension) [Macintosh]

3726) SIU       System Interface Unit

3727) SKIP      Simple Key-Management for Internet Protocols [Sun]

3728) SKU#      Stock Keeping Unit Number

3729) SLA       Service Level Agreement

3730) SLB              Static Load Balancing

3731)  SLC       Subscriber Line Concentrator

3732) SLD             Second-Level Domain (name)

3733)  SLDT      Store Local Descriptor Table

3734) SLED      Single Large Expensive Disk

3735)  SLIC      System Level Integration Circuit +

286           System Licensed Internal Code [IBM]

3736) SLIM      Structured Language for Internet Markup

3737)  SLIP      Serial Line Interface Protocol

3738) SLM       Spatial Light Modulator

3739) SLMR      Silly Little Mail Reader

3740) SLOSH     Sea, Lake and Overland Surge from Hurricane (program)

3741)  SLOT          Scanned Laser Output Terminal

3742) SLP       Service Location Protocol

3743) SLSI      Super Large-Scale Integration

3744) SLSS      Systems Library Subscription Service [IBM]

3745) SLU       Spoken Language Understanding

3746) SM        Set Mode + Shared Memory

3747) SMA            Software Migration Assistant [IBM]

3748) SMART     Self-Monitoring Analysis and Reporting Technology

3749) SMB       Server Message Block (protocol) [MII]

3750) SMD       Surface Mounted Device

3751)  SMDR      Station Message Detail Recording

3752) SMDS      Switched Multimedia/Multi-Megabit Data Service

3753)  SMF       Single Mode Fiber + System Manager Facility [Compaq]

3754) SMI       System Management Interrupt [Intel]

3755)  SMIF      Standard Mechanical Interface

3756) SMIL      Synchronized Multimedia Integration Language

3757)  S-MIME    Secure MIME

3758) SMIT      System Management Interface Tool [IBM]

3759) SMK       Software Migration Kit [Microsoft]

3760) SML       Standard Meta Language

3761)  SMM       System Management Mode [Intel]

3762) SMOBC     Solder Mask Over Bare Copper

3763) SMP       Simple Management Protocol + Symbolic Manipulation

3764) Program + Symmetrical Multi-Processing +

3765) Symmetric Multiprocessor

3766) .SMP      Sample (file name extension)

3767) SMPC      Shared Memory Parallel Computer

3768) SMPS      Switching Mode Power Supply

3769) SMRAM     System Management Random Access Memory

3770) SMS       Short Message Service [Sprint] +

286           Small Messaging System +

3771)  Storage Management Services [NetWare] +

3772) Storage Management Subsystem/System +

3773)  Systems Management Server [Microsoft]

3774) SMSW      Store Machine Status Word

3775)  SMT       Station Management (protocol) +

3776) Surface-Mount Technology

3777)  SMTP      Simple Mail Transfer Protocol

3778) SMU       System Management Utility

3779) SN        Serial Number

3780) S/N       Signal-to-Noise (Ratio)

3781)  SNA       Systems Network Architecture [IBM]

3782) SNAP      Sub-Network Access Protocol +

3783) Sub-Network Attachment Point

3784) SNAPI         Structured N-Dimensional Application Program

286           Interface [Oracle]

3785) SND       Sound

3786) SNEWS     Secure News Server [Internet]

3787) SNMP      Simple Network Management Protocol

3788) SNOBOL    String Oriented Symbolic Language (Programming Language)

3789) SNP       Serial Number/Password [Omen Technology]

3790) SNR       Signal-to-Noise Ratio

3791)  SOA       Start Of Authority

3792) SOAP          Simple Object Access Protocol

3793) SOC       System On a Chip

3794) SOC.      Social Issues [USENET Newsgroup Category]

3795) SOCKS     Socket Secure (server) [Internet]

3796) SO-DIMM   Small Outline DIMM

3797) SOE       Standard Operating Environment

3798) SOH       Start of Header

3799) SOHO      Small Office/Home Office

3800) SOI              Silicon-On-Insulator [IBM]

3801)  SOL       Simulation Oriented Language

3802) SOM       Start of Message + System Object Model [IBM]

3803) SONAR     Sound Navigation and Ranging

3804) SONET     Synchronous Optical Network

3805) SOP       Small Outline Package + Standard Operating Procedures

3806) SOS       Silicon On Sapphire + Sophisticated Operating System +

3807) Standards and Open Systems

3808) SOTA      State Of The Art

3809) SOX       Sound Exchange

3810)  SP        Service Pack [IBM] + Stack Pointer + System Product

3811)   SPA       Secure Password Authentication [Microsoft] +

3812)  Software Publishers Association

3813)  SPAN      Space Physics Analysis Network

3814)  SPARC     Scalable Processor Architecture +

3815)  Sun's Palo Alto Research Center

3816)  SPC       Small Peripheral Controller + Statistical Process Control

3817)  SPCL      Spectrum Cellular Corporation

3818)  SPCS      Stored Program Controlled Switch

3819)  SPD       Serial Presence Detect

3820) SPEC      Systems Performance Evaluation Cooperative

3821)  SPF       Shortest Path First + System Programming Facility

3822) SPGA      Staggered Pin-Grid Array

3823) SPI       Security Parameters Index + Service Provider Interface +

3824) SCSI Parallel Interface

3825) .SPI             Spool (file name extension)

3826) SPID      Service Profile/Provider Identifier

3827) SPIKE     Science Planning Intelligent Knowledge-Based

3828) Environment [STScI]

3829) SPIRES    Stanford Public Information Retrieval System

3830) [Stanford University]

3831)  SPL       Spooler + System Programming Language [HP]

3832) .SPL      Spell Checker (file name extension)

3833) SPLD      Simple Programmable Logic Device

3834) SPM       System Performance Monitor [IBM]

3835) SPOOL     Simultaneous Peripheral Operations On Line

3836) SPOT      Shared Product Object Tree [IBM]

3837) SPP       Sequenced Packet Protocol + Standard Printer Port

3838) SPPS      Scalable Power Parallel System [IBM]

3839) SPR       Special Purpose Register +

3840) Statistical Pattern Recognition +

3841)  Symmetrical Phase Recording

3842) SPREAD  * Systems Programming, Research, Engineering

3843) and Development [IBM]

3844) SPS       Secure Packet Shield + Shock Protection System +

3845) Standby Power System

3846) SPSS      Statistical Package for the Social Sciences

3847) SPT       Sectors Per Track

3848) SPX       Sequenced Packet Exchange [Novell]

3849) SQ        Squeezed (files)

3850) SQE       Signal Quality Error (test)

3851)  SQL/DS    Structured Query Language/Data System [IBM]

3852) SQOS      Secure Quality Of Service

3853) SQRT      Square Root

3854) SR        Shift Register

3855) SRAM      Shadow Random Access Memory +

3856) Static Random Access Memory

3857) SRAPI     Speech Recognition API

3858) SRB       Source-Route Bridge

3859) SRC             System Resource Controller

3860) .SRC      Source (file name extension)

3861)  SRD       Screen Reader System

3862) SRDRAM    Self-Refreshed DRAM

3863) SRGB      Sustained RGB (values)

3864) SRM       Security Reference Monitor

3865) SRO       Sharable and Read Only

3866) SRP       Suggested Retail Price

3867) .SRP      Script (file name extension)

3868) SRPI      Server-Requester Programming Interface

3869) SRQ       Service Request

3870) SRR       Serially Reusable Resource

3871)  SRS       Sound Retrieval System

3872) SS        Stack Segment + Single Sided + Seconds

3873) SSA       Serial Storage Architecture

3874) SSAP      Source Service Access Point

3875) SSCP      Systems Service Control Point [IBM]

3876) SSD       Solid State Disk

3877) SSEC    * Selective Sequence Electronic Calculator [IBM]

3878) SSGA      System Support Gate Array

3879) SSH       Secure Shell (protocol)

3880) SSI       Server Side Includes + Single System Image +

3881)  Small Scale Integration

3882) SSL       Secure Sockets Layer

3883) SSPI      Security Service Provider Interface [Microsoft]

3884) SSRP      Simple Server Redundancy Protocol [Cisco]

3885) SST       Spread-Spectrum Technology +

3886) Systems Services and Technology

3887) STA       Spanning Tree Algorithm

3888) STAR      Self Defining Text Archival

3889) STB       Strobe

3890) STC       Set Carry Flag

3891)  STD       Set Direction Flag + Standard

3892) STDA      StreetTalk Directory Assistance [Banyan]

3893) STDAUX    Standard Auxilary

3894) STDERR    Standard Error

3895) STDIN     Standard Input

3896) STDIO.H   Standard Input/Output Header [C Programming Language]

3897) STDM      Statistical Time Division Multiplexer

3898) STDOUT    Standard Output

3899) STDPRN    Standard Printer

3900) STEP      Standard for Exchange of Product

3901)  .STF      Structured File (file name extension) [Lotus Agenda]

3902) STI       Set Interrupt Flag

3903) S/TK      Sectors Per Track

3904) STL       Standard Template Library

3905) STN       Super-Twist Nematic

3906) .STORE    Businesses Offering Goods (Domain Name) [Internet]

3907) STOS      Store String

3908) STP       Secure Transfer Protocol + Shielded Twisted Pair (cable) +

3909) Signal Transfer Point +

3910)  Synchronized Transaction Processing

3911)   STR       Store Task Register + Synchronous Transmitter Receiver

3912)  STRESS    Structural Engineering System Solver (Programming

3913)  Language)

3914)  STRUDL    Structural Design Language (Programming Language)

3915)  STScI     Space Telescope Science Institute

3916)  STT       Secure Transaction Technology [Microsoft]

3917)  STX       Start of Text

3918)  .STY      Style (file name extension) [Ventura, Word, WordPerfect]

3919)  SUB       Subroutine + Substitute + Subtract

3920) SUN       Sun Microsystems, Inc.

3921)  .SUP      Supplemental Dictionary (file name extension)

3922) [WordPerfect]

3923) SVC       Switched Virtual Circuit

3924) SVF       Simple Vector Format

3925) SVG       Scalable Vector Graphics

3926) SVGA      Super Video Graphics Array

3927) S-VHS     Super VHS

3928) SVM       System Virtual Machine [Microsoft]

3929) SVN       Switched Virtual Network [IBM]

3930) SVR       Server

3931)  SVR#      System V Release Number [AT&T]

3932) S/W       Software

3933) SWAC    * Mobile version of SEAC, built for deployment to White

3934) Sands, and named Standards Western Automatic Calculator

3935) SWAIS     Simple Wide Area Information Server [Internet]

3936) SWAP      Shared Wireless Access Protocol

3937) SWIG      Simplified Wrapper and Interface Generator

3938) SWISH     Simple Web Indexing System for Humans

3939) SWP       Simple Web Printing

3940) .SWP      Swap (file name extension)

3941)  .SYL      Syllabus (file name extension)

3942) SYLK      Symbolic Link

3943) .SYM      Symbols (file name extension)

3944) .SYN      Synonym (file name extension)

3945) SYNC      Synchronous

3946) SYS       System

3947) .SYS      System Configuration (file name extension) +

3948) System Device Driver (file name extension)

3949) SYSADMIN  System Administrator

3950) SYSGEN    System Generator

3951)  SYSLOG    System Log

3952) SYSMOD    System Modification

3953) SYSOP     System Operator

3954) SYSREQ    System Request

3955) SZ        Send ZModem [Unix]

T...

3956) TAB       Tape Automated Bonding

3957) TACS      Total Access Communication System

3958) TAD       Telephone Answering Device

3959) TAG             Technical Advisory Group

3960) TAP       Telelocator Alphanumeric Protocol

3961)  TAPCIS    The Access Program for the CompuServe

3962) Information Service

3963) TAPI      Telephony Applications Programming Interface

3964) .tar      Tape Archive (archived file name extension) [Unix]

3965) .tar.Z    Compressed Archived files (file name extension) [Unix]

3966) TAS       Telephone Access Server

3967) TASM      Turbo Assembler [Borland]

3968) TAXI      Transparent Asynchronous Transceiver/Receiver Interface

3969) TB        Terabyte (1,024 gigabytes)

3970) (One Thousand Billion characters of information)

3971)  T/B       Top and Bottom

3972) TBBS      The Bread Board System (BBS)

3973) TBGA      Tape Ball Grid Array

3974) .TBK      Toolbook (file name extension)

3975) TBU       Tape Backup Unit

3976) TC        Test Control + Transmission Control

3977) TCL       Tool Command Language

3978) TCM       Trellis-Coded Modulation

3979) TCO       Total Cost of Ownership

3980) TCP       Tape-Carrier Package

3981)  TCP/IP    Transmission Control Protocol/Internet Protocol

3982) TD        Transmit Data

3983) .TDA      To Do Archive (file name extension) [Palm]

3984) TDC       Tabular Data Control

3985) TDD       Telecommunications Device for the Deaf

3986) TDtoDP    Tablet Coordinates to Display Coordinates

3987) (converting)

3988) TDE       Terminal Display Editor

3989) .TDF      Trace Definition File (file name extension) [OS/2] +

3990) Typeface Definition File (file name extension)

3991)  TDI       Transport Device Interface

3992) TDM       Technical Document Management +

3993) Time Division Multiplexing

3994) TDMA      Time Division Multiple Access

3995) TDMS      Terminal Display Management System

3996) TDP       Tag Distribution Protocol [Cisco] +

3997) Telelocator Data Protocol

3998) TDSR      Transmitter Data Service Request

3999) TDR       Time Domain Reflectometry

4000)TE/2      Terminal Emulator/2 [Oberon]

4001) TEB       Thread Environment Block

4002)TEC       Tokyo Electronics Corporation

4003) TED       Tiny Editor + Transient Electromagnetic Device

4004)TEI       Terminal Endpoint Identifier

4005) TELCO     Telephone Company

4006)TEML      Turbo Editor Macro Language [Borland]

4007) TEMP      Temporary

4008)TER       Thermal Eclipse Reading [Sony]

4009)TERMPWR   Terminator Power

4010) TFDD      Text File Device Driver

4011)  TFEL      Thin-Film Electroluminescent

4012) .TFM      Tagged Font Metric (file name extension)

4013)  TFT       Thin-Film Transistor (screens)

4014) TFTP      Trivial File Transfer Protocol

4015)  .TGA            Taga Bitmap (file name extension)

4016) THD       Total Harmonic Distortion

4017)  .THD      Thread (file name extension)

4018) THOMAS    The (U.S.) House (of Representatives) Open Multimedia

4019) Access System

4020)THOR      Tandy High-Performance Optical Recording

4021) THR       Transmit Holding Register

4022).THS      Thesaurus (file name extension)

4023) TI        Texas Instruments, Inc.

4024)TIA       Telecommunications Industry Association +

4025) The Internet Adapter [Internet]

4026)TIB              Tag Information Base

4027) TID       Target ID

4028)TIES      Time Independent Escape Sequence

4029).TIF      Tagged Image File (filename extension)

4030) TIFF      Tagged Image File Format

4031)  TIGA      Texas Instruments Graphics Architecture

4032) TIGER     Topologically Integrated Geographic Encoding

4033) and Referencing

4034) TIIAP     Telecommunications and Information Infrastructure

4035) Assistance Program [NII]

4036) TIL              Tech Info Library [Macintosh]

4037) TIM       Technical Information Memo [Compaq]

4038) TIMEZONES - - - - - - - - - - - - - - - - - GMT Offsets

                                                    i.                      Offsets Eastward from GMT (+)

                                                  ii.                      Offsets Westward from GMT (-)

4039) AST - Atlantic Standard Time          -4:00

4040)AT  - Azores Time                     -2:00

4041) AHD - Alaska-Hawaii Daylight           :::

4042)AHS - Alaska-Hawaii Standard         -10:00

4043) BLT - Baghdad Local Time              +3:00

4044)BST - British Summer Time              :::

4045) CAT - Central Alaska Time            -10:00

4046)CCT - China Coast Time                +8:00

4047) CDT - Central Daylight Time            :::

4048)CET - Central European Time           +1:00

4049)CLT - Cairo Local Time                +2:00

4050) CST - Central Standard Time           -6:00

4051)  EAD - East Australian Daylight         :::

4052) EAS - East Australian Standard       +10:00

4053) EDT - Eastern Daylight Time            :::

4054) EET - Eastern European Time           +1:00

4055) EMT - Eastern Mediterranean           +2:00

4056) EST - Eastern Standard Time           -5:00

4057) GMT - Greenwich Mean Time             +0:00

4058) HST - Hawaii Standard Time           -10:00

4059) JST - Japanese Standard Time          +9:00

4060)MDT - Mountain Daylight Time           :::

4061) MET - Middle European Time            +1:00

4062)MST - Mountain Standard Time          -7:00

4063) MTS - Moscow Time Standard            +3:00

4064)MTD - Moscow Time Daylight             :::

4065) NT  - Nome Time                      -11:00

4066)NZT - New Zealand Time               +12:00

4067) PDT - Pacific Daylight Time            :::

4068)PST - Pacific Standard Time           -8:00

4069)PST - Pakistan Standard Time          +5:00

4070) WAS - West Australian Standard        +7:00

4071)  WAT - West Africa Time                -1:00

4072) WED - Western Europe Daylight          :::

4073) WES - Western Europe Standard         +0:00

4074) YDT - Yukon Daylight Time              :::

4075) YST - Yukon Standard Time             -9:00

4076) IDLE- International Date Line East   +12:00

4077) IDLW- International Date Line West   -12:00

4078) TIMI      Technology Independent Machine Interface [IBM]

4079) TIMS      Text Information Management Systems

4080)TINA      Telecommunication Information Networking Architecture

4081) TIP       Terminal Interface Processor +

4082)Transaction Internet Protocol

4083) TITOFET   Tunneling-In, Tunneling-Out Field Effect Transistor

4084)TK/TK     Track to Track

4085) TLA       Three-Letter Acronym

4086)TLB       Translation Lookaside Buffer

4087) .TLB      Table (file name extension)

4088)TLD       Top Level Domain (name)

4089)TLI       Transport Layer Interface

4090)TLS       Transport Layer Security

4091) TLU       Table Lookup

4092).TLX      Telex (file name extension)

4093) TM        Trademark

4094)TMDS      Transition Minimized Differential Signaling

4095) .TML      Template (file name extension)

4096)TMP       Temporary

4097) TMS       Traffic Management System [BA]

4098)TN        Twisted Nematic

4099)TNC       Terminal Node Controller

4100) TNEF          Transport Neutral Encapsulation Format

4101)  TNO       The Netherlands Organization

4102) ToC       Table Of Contents

4103)  TOD       Time Of Day

4104) TOP       Technical and Office Protocol

4105)  TOS             Terms Of Service

4106) TPC       Transaction-Processing Performance Council

4107)  TPF       Transactions Processing Facility [IBM]

4108) TPI       Tracks Per Inch

4109) TPL       Table Producing Language +

4110)  Transaction Processing Language

4111)   TPM       Transactions Per Minute

4112)  TPORT     Twisted Pair Port Transceiver [AT&T]

4113)   TP-PMD     Twisted Pair-Physical Medium Dependent (cable)

4114)  TPS       Transactions Per Second +

4115)   Transaction Processing System

4116)  TPW       Turbo Pascal for Windows

4117)   TQFP      Thin Quad Flat Pack

4118)  TQM       Total Quality Management

4119)  TR        Terminal Ready

4120) T/R       Transmit/Receive

4121)  TRACERT   Trace Route [Microsoft]

4122) TRADIC  * Transistorized Airborne Digital Computer

4123)  (Name of first computer to be entirely

4124) transistorized)

4125)  .TRM      Terminal (file name extension)

4126) TRN       Threaded Read News [Internet] + Token Ring Network

4127)  TRON      The Real-Time Operating System Nucleus

4128) TS        Top Secret

4129) TSA       Target Service Agent + Technical Support Alliance +

4130)  Telephony Services Architecture

4131)   TSAPI     Telephony Services Application Program

4132)  Interface [AT&T + Novell]

4133)  TSB       Termination Status Block

4134)  TSD       Type-Specific Driver

4135)  TSE       The Semware Editor

4136)  TSO       Time Sharing Option

4137)  TSP       Telephony Service Provider

4138)  TSR       Terminate and Stay Resident

4139)  TSS       Task State Segment + Time Sharing System

4140) TS/SI     Top Secret/Sensitive Information

4141)  .TST      Test (file name extension)

4142) TSTN      Triple Supertwisted Nematic

4143)  TSV       Tab Separated Values

4144) TT        Typewriter Text

4145)  TTA       Transport-Triggered Architecture

4146) TTCN      Tree and Tabular Combined Notation

4147)  .TTF      TrueType Font (file name extension)

4148) TTL       Transistor-Transistor Logic

4149) TTP       Thermal-Transfer Printing

4150)  TTS       Text-To-Speech + Transaction Tracking System

4151)   TTY       Teletype

4152)  TUCOWS    The Ultimate Collection of Winsock Software

4153)  TUI       Text-Based User Interface [WordPerfect]

4154)  TUMS      Table Update and Management System [Stanford University]

4155)  .TUT      Tutorial (file name extension)

4156)  TVF       Table of contents Verbosely from File [UNIX]

4157)  TVFS      Toronto Virtual File System [IBM]

4158)  TVI       Television Interference

4159)  TVOL      Television On-Line

4160) TWAIN     Technology Without Any Interesting Name

4161)  (connection between application and scanner software)

4162) TWEAKUI                    Tweak User Interface

4163)  TWX       Teletypewriter Exchange Service

4164) TXD       Transmit Data

4165)  .TXF      Tax Exchange Format (file name extension)

4166) TXT       Text

4167)  TXT2STF   Text To Structured File [Lotus Agenda]

4168) TZ        Time Zone [Unix]

U...

4169) UA        User Agent + User Area

4170)  UAE       Unrecoverable Application Error

4171)   UAM       User Authentication Method

4172)  UART      Universal Asynchronous Receiver/Transmitter

4173)  UBR       Unspecified Bit Rate

4174)  .UC2      Compressed File (file name extension) [UltraCompressor]

4175)  UCE       Unsolicited Commercial Email

4176)  UCL       Universal Communications Language

4177)  UCS       Unicode Conversion Support + Universal Character Set +

4178)  User Coordinate System

4179)  UCT       Universal Coordinated Time

4180) UDA       Universal Data Access [Microsoft]

4181)  UDB       Universal Data Base

4182) UDC       Universal Decimal Classification + User Defined Commands

4183)  UDD       User Data Document

4184) UDE       Universal Data Exchange

4185)  UDEC    * Universal Digital Electronic Computer [Burroughs]

4186) UDF       Universal Disk Format + User Defined Functions

4187)  UDG       User Defined Gateway

4188) UDMA        Ultra Direct Memory Access

4189) UDP       User Datagram Protocol

4190) UDT       Uniform Data Transfer + User-Defined Type

4191)  UFS       Unix File System

4192) UG        User Group

4193)  UHCI      Universal Host Controller Interface

4194) UHF       Ultra-High Frequency

4195)  UHL       Universal Hypertext Link

4196) UI        Unix International + User Interface

4197)  UIC       User Identification Code

4198) UID       User Identifier

4199) UIMS      User Interface Management System

4200)UL        Underwriters Laboratories +

4201) Unordered List + Upload

4202)ULA       Uncommitted Logic Array

4203) ULN       Universal Link Negotiation

4204)ULSI      Ultra Large Scale Integration

4205) UMA       Unified Memory Architecture

4206)UMB       Upper Memory Block [LIM/AST]

4207) UML       Unified Modeling Language

4208)UMS            User Mode Scheduler

4209)UMTS      Universal Mobile Telecommunications System

4210) UNC       Universal Naming Convention +

4211)  Uuencoded Netnews Collator [Unix]

4212) UNCOL     Universal Computed Oriented Language

4213)  UNI       User-Network Interface

4214) UNICOM    Universal Integrated Communication (System)

4215)  UNICOS    Universal Compiler FORTRAN compatible

4216) UNII      Unlicensed National Information Infrastructure

4217)  UNIVAC    Universal Automatic Computer

4218) UNIX      (AT&T Bell Laboratories Operating System)

4219) UNMA      Unified Network Management Architecture

4220)UNSPSC     Universal Standard Products and Services Classification

4221) UP        Uniprocessor

4222)UPC       Universal Product/Program Code + User Parameter Control

4223) UPG       Upgrade

4224)UPL       User Program Language

4225) UPM       Unix Programmer's Manual +

4226)User Profile Management [IBM]

4227) UPS       Uninterruptible Power Supply/System

4228)URC       Uniform Resource Characteristics +

4229)Uniform Resource Citation

4230) UREP      Unix RSCS Emulation Protocol (protocol)

4231)  URI       Uniform Resource Identifier

4232) URL       Uniform Resource Locator

4233) URN       Uniform Resource Name/Number

4234) US        Unit Separator

4235) USART     Universal Synchronous-Asynchronous Receiver/Transmitter

4236) USB       Universal Serial Bus [Intel]

4237) USENET    User's Network [Internet]

4238) USERID    User Identification

4239) USOC      Universal Service Ordering Code

4240)USQ       Unsqueezed (files)

4241) USR       US Robotics (corporation)

4242)USRT      Universal Synchronous Receiver/Transmitter

4243) USSA      User Supported Software Association (United Kingdom)

4244)UT        User Terminal

4245) UTC       Coordinated Universal Time

4246)UTI       Universal Text Interchange/Interface

4247) UTP       Unshielded Twisted-Pair (cable)

4248)UU        Uuencode/Uudecode

4249)UUCP      Unix-To-Unix Copy Program

4250) UUD       UUDecoding [Unix]

4251)  UUDECODE  Unix-To-Unix Decoding

4252) UUE       UUEncoding [Unix]

4253) UUENCODE  Unix-To-Unix Encoding

4254) UUI       User-To-User Information [AT&T]

4255) UUID      Universal Unique Identifier

4256) UV        Ultraviolet

4257) UWR           Ultra Wideband Radio

V...

4258) VA        Virtual Address + Visual Age [IBM]

4259) VAD       Value Added Dealer

4260)VADD      Value Added Disk Driver

4261) VADSL     (See DSL)

4262)VAI              Video As Input

4263) VAL       Value + Voice Application Language

4264).VAL      Validity Checks (file name extension) [Paradox]

4265) VAM       Virtual Access Method

4266)VAN       Value Added Network

4267) VAP       Value Added Process

4268)VAR       Value Added Reseller + Value Added Retailer + Variable

4269)VAST      Variable Array Storage Technology

4270) VAX/VMS   Virtual Address Extension/Virtual Memory System [DEC]

4271)  VB        Variable Block + Visual Basic [Microsoft]

4272) VBA       Visual Basic for Applications [Microsoft]

4273) VBE/AI    Vesa Bios Extension/Audio Interface

4274) VBI       Vertical Blanking Interval

4275) VBNS      Very High Speed Backbone Network Service [MCI + NSF]

4276) VBR       Variable Bit Rate

4277) VBRUN     Visual Basic Runtime

4278) VBS       Visual Basic Script

4279) .VBX      Visual Basic Extension (file name extension)

4280)VCC       Virtual Channel Connection

4281) VCD       Video Compact Disk + Virtual Communications Driver

4282)VCI       Virtual Circuit Identifier

4283) VCL       Visual Component Library

4284)VCN       Virtual Cluster Number

4285) VCOS      Visual Caching Operating System [AT&T]

4286)VCPI      Virtual Control Program Interface

4287) VCR       Video Cassette Recorder

4288)VDD       Virtual Device Driver

4289)VDDM      Virtual Device Driver Manager

4290)VDE       Video Display Editor + Visual Development Environment

4291) VDI              Virtual Device Interface

4292)VDISK     Virtual Disk

4293) VDM       Virtual DOS Machine [IBM]

4294)VDMAD     Virtual Direct Memory Access Device [Microsoft]

4295) VDS       Virtual DMA Services

4296)VDSL      (See DSL)

4297) VDT       Video Dial Tone + Video Display Terminal

4298)VDU       Video Display Unit + Visual Display Unit

4299)VEGA      Video-7 Enhanced Graphics Adapter [Video-7, Inc.]

4300) VEMM      Virtual Expanded Memory Manager

4301)  VEMMI     Versatile Multimedia Interface

4302) VER       Verify + Version

4303) VERONICA  Very Easy Rodent-Oriented Net-Wide Index to

4304) Computer Archives [Internet]

4305) VERR      Verify Read Access

4306) VERW      Verify Write Access

4307) VES       Video Encoding Standard [Oracle]

4308) VESA      Video Electronics Standards Association

4309) VF        Virtual Floppy

4310)  VFAT      Virtual File Allocation Table [Microsoft]

4311)   V.FC      Version.First Class (communications standard)

4312)  VFD       Vacuum Fluorescent Display

4313)  VFW       Video For Windows [Microsoft]

4314)  VGA       Video Graphics Array

4315)  VGC       Video Graphics Controller

4316)  VHDL      VHSIC Hardware Description Language

4317)  VHF       Very-High Frequency

4318)  VHS       Very High Speed + Video Home System +

4319)  Virtual Host Storage

4320) VHSIC     Very High Speed Integrated Circuit

4321)  VI        Visual Interactive (editor) [UNIX]

4322) VIA       Virtual Interface Architecture [Intel]

4323) VIE       Virtual Information Environment

4324) VIF       Virtual Interface + Virtual Interrupt Flag

4325) VIM       Vendor Independent Mail +

4326) Vendor Independent Messaging + Video Interface Module

4327) VIO       Video Input/Output + Virtual Input/Output

4328) VINES     Virtual Networking System [Banyan]

4329) ViP       Visual Programming [Lotus]

4330) VIP       Variable Information Processing +

4331)  Video Information Provider +

4332) Virtual Interrupt Pending +

286           Visual Interactive Parser

4333) VIPER     Verifiable Integrated Processor for

4334) Enhanced Reliability

4335) VIS       Video Information System [Tandy] +

4336) Visual Instruction Set [Sun] +

4337) Voice Information System

4338) VJ HEADER Van Jacobsen Header (compression) [Unix]

4339) VLAN      Virtual Local Area Network

4340) VL-BUS    Vesa Local-Bus [VESA]

4341)  VLD       Variable-Length Decoder

4342) VLF       Very Low Frequency

4343) VLINK     Visited Link [HTML]

4344) VLIW      Very Large Instruction Word

4345) VLM       Virtual Loadable Module

4346) VLSI      Very Large Scale Integration

4347) VLSIPS    Very Large Scale Immobilized Polymer Synthesis

4348) VLT       Variable List Table

4349) VM        Virtual Machine + Virtual Memory

4350) VMA       Virtual Memory Address

4351)  VMB       Virtual Machine Boot

4352) VME       Versa Module Eurocard +

4353) Virtual Memory Environment

4354) VML       Vector Markup Language [Microsoft]

4355) VMM       Virtual Machine/Memory Manager

4356) VMOS      Vertical MOS

4357) VMP       Virtual Modem Protocol

4358) VMS       Virtual Machine Storage + Virtual Memory System +

4359) Voice Message System

4360) VMT       Virtual Memory Technique

4361)  VNA       Virtual Network Architecture

4362) VOC       Creative Voice (format) [Sound Blaster]

4363) VOD       Video On Demand

4364) VOIP      Voice Over Internet Protocol

4365) VOL       Volume

4366) VOM       Volt-Ohm-Milliammeter

4367) VOR       Visions Of Reality

4368) VOS       Verbal/Voice Operating System

4369) VP        Virtual Path

4370) VPD       Virtual Printer Device + Vital Product Data [IBM]

4371)  VPDN      Virtual Private Data Network

4372) VPDS      Virtual Private Data Service [MCI]

4373) VPE       Video Port Extensions [Microsoft] +

4374) Visual Programming Environment

4375) VPL       Virtual Programming Language

4376) VPM       Video Port Manager

4377) VPN       Virtual Page Number + Virtual Private Network

4378) VPS       Voice Processing System

4379) VPSC      Vault, Process, Structure, Configuration

4380) VPT       Virtual Print Technology [Dataproducts]

4381)  VR        Virtual Reality + Voltage Regulated/Regulator

4382) VRAM      Video Random Access Memory

4383) VRD       Virtual Retinal Display

4384) VRE       Voltage Regulated Extended

4385) VRM       Vendor Relationship Management + Voltage Regulator Module

4386) VRML      Virtual Reality Modeling Language

4387) (originally named Virtual Reality Markup Language)

4388) VROOMM    Virtual Real-time Object Oriented

4389) Memory Manager [Borland]

4390) .VRS      WordPerfect Graphics Driver (file name extension)

4391)  VRT       Voltage Regulation Technology [Intel]

4392) VRU       Voice Response Unit

4393) VS        Virtual Storage

4394) VSAM      Virtual Storage Access Method

4395) VSAT      Very Small Aperture Terminal

4396) VSE       Virtual Storage Extended

4397) VSF       Vertical Scanning Frequency

4398) VSI       Virtual Socket/Switch Interface

4399) VSIO      Virtual Serial Input Output

4400)VSM       Virtual Shared Memory + Virtual Storage Management +

4401) Visual System Management [IBM]

4402)VSN       Volume Serial Number

4403) VSOS      Virtual Storage Operating System

4404)VSYNC     Vertical Sync

4405) VT        Vertical Tab

4406)VTAM      Virtual Telecommunications Access Method [IBM]

4407) VTNS      Virtual Telecommunications Network Service

4408)VTS       Volume Tracking Driver

4409)VUI       Video User Interface

4410) VUP       VAX Unit of Performance

4411)  VWB       Visual WorkBench [Microsoft]

4412) VWM       Virtual Window Manager

4413)  VXA       Variable-Speed Architecture [Ecrix]

4414) VxD       Virtual Extended Driver [Microsoft]

4415)  .VXD      Virtual Device (file name extension) [Microsoft]

4416) V&V       Verification and Validation

W...

4417)  W/        With

4418) W3        (see WWW)

4419) W3A       World Wide Web Applets

4420)W3C       World Wide Web Consortium

4421) W4        What-Works-With-What

4422)WAAS      Wide Area Augmentation System

4423) WABI      Windows Application Binary Interface [SunSoft]

4424)WAI             Web Accessibility Initiative +

4425) Web Application Interface [Netscape]

4426)WAIS      Wide Area Information Server

4427) WAITI     Wait-For-Interrupt

4428)WAITS     Wide Area Information Transfer System

4429)WAN       Wide Area Network

4430) WAP       Wireless Application Protocol

4431)  WATS      Wide Area Telecommunications Service

4432) .WAV      Waveform Audio (file name extension)

4433) WBEM      Web-Based Enterprise Management

4434) WC        Word Count

4435) WCS       World Coordinate System

4436) WD-40       Water Displacement-40th Attempt

4437) WDL       Windows Driver Library [Microsoft]

4438) WDM       Wavelength Division Multiplexing +

4439) Windows Driver Model [Microsoft]

4440)WDRAM     Windows Dynamic Random Access Memory

4441) WEA            Web Enabled Application

4442).WEB      Entities Emphasizing the WWW (Domain Name) [Internet]

4443) WEBNFS    Web Network File System [Sun]

4444)WELL      Whole Earth 'Lectronic Link (BBS)

4445) WFM       Wired For Management [Intel]

4446)WFQ           Weighted Fair Queuing [Cisco]

4447) WFW       Windows For Workgroups [Microsoft]

4448)WGS       Work Group System

4449)WHAM      Waveform Hold and Modify [Microsoft]

4450) WHC       Workstation Host Connection

4451)  WIN 9.X   Windows95/Windows98

4452) WINDBG    Windows Debugger [Microsoft]

4453) WINE      Windows Emulator

4454) WINForum  Wireless Information Networks Forum

4455) WIN...ME  Windows Millennium Edition [Microsoft]

4456) WINS      Windows Internet Naming Service [Microsoft]

4457) WIN...SE  Windows Second Edition [Microsoft]

4458) WINSOCK   Windows Open Systems Architecture [Microsoft] +

4459) Windows Sockets

4460)WINWORD   Word For Windows [Microsoft]

4461) WIN...XP  Windows The "Experience" [Microsoft]

4462)WISE      WordPerfect Information System Environment

4463) WIT       Web Interactive Talk [Internet]

4464).WKB      Workbook (file name extension) [WordPerfect]

4465) .WKE      Worksheet (file name extension) [Lotus 1-2-3] [LDC]

4466).WKQ      Spreadsheet (file name extension) [BORQU]

4467) .WKS      Worksheet (file name extension) [Lotus 1-2-3] [LDC]

4468).WKZ      Compressed Spreadsheet (file name extension) [BORQU]

4469).WK1      Worksheet (file name extension) [Lotus 1-2-3] [LDC]

4470) WL        Word Line

4471)  .WLG      Dr. Watson Log (file name extension)

4472) WLL            Wireless Local Loop

4473) .WMA      Windows Media Audio (file name extension) [Microsoft]

4474) WMC       Workflow Management Coalition

4475) .WMF      Windows Metafile Format (file name extension) [Microsoft]

4476) WML           Wireless Markup Language

4477) WMP           Windows Media Player [Microsoft]

4478) WMRM      Write Many, Read Many

4479) WMT          Windows Media Technologies [Microsoft]

4480)WNIC      Wide-Area Network Interface Co-Processor

4481) WNIM      Wide-Area Network Interface Module

4482)W/O       Without

4483) WORM      Write Once, Read Many

4484)WOS       Workstation Operating System

4485) WOSA      Windows Open Services/Systems Architecture [Microsoft]

4486)WOW       Window On Windows [Microsoft]

4487) WP        WordPerfect + Word Processing + Write Protected

4488).WPD      Windows Printer Description (file name extension)

4489).WPG      WordPerfect Graphics (file name extension)

4490)WPHD      Write-Protect Hard Disk

4491) .WPK      Keyboard (file name extension) [WordPerfect]

4492)WPM       Words Per Minute

4493) .WPM      Macro (file name extension) [WordPerfect]

4494)WPOS      Workplace Operating System

4495) WPS       Windows Printing System [Microsoft] +

4496)Workplace Shell [OS2]

4497) WPVM      Windows Parallel Virtual Machine

4498).WQ1      Spreadsheet (file name extension) [BORPQU]

4499).WQ!      Compressed Spreadsheet (file name extension) [BORPQU]

4500) WRAM      Windows Random Access Memory

4501)  WRE           Weighted Random Early Detection [Cisco]

4502) .WRI      Write (file name extension)

4503) WRK       Windows Resource Kit [Microsoft]

4504) WS        WordStar + Workstation

4505) WSAPI     Web Site Application Program Interface [O'Reilly]

4506) WSH       Windows Scripting Host [Microsoft]

4507) WT        Write Through

4508) WTM       Wired For Management

4509) WWIS      World Wide Information System [Internet]

4510)  WWW       World-Wide Web [Internet]

4511)   WYSBYGI   What You See Before You Get It

4512)  WYSIWYG   What You See Is What You Get

X...

4513)  XA        Extended Architecture + Extended Attribute

4514)  XAPIA     X.400 Application Program Interface Association

4515)  X2B       Hexadecimal to Binary [REXX]

4516)  .XBM      X-Windows Bitmaps (file name extension) (black and white)

4517)  .XPM      X-Windows Pixelmaps (file name extension) (color)

4518)  X2C       Hexadecimal to Character [REXX]

4519)  XCHG      Exchange

4520) XCMD      External Command

4521)  XCOPY     Extended Copy

4522) X2D       Hexadecimal to Decimal [REXX]

4523) XDF       Extended Density Format [IBM]

4524) XDR       Extended/External Data Representation

4525) XFCN      External Function

4526) XFDL          Extensible forms Description Language

4527) XGA       Extended Graphics Array [IBM]

4528) XHTML      Extensible HyperText Markup Language

4529) XID       Exchange Identifier

4530) XIOS      Extended Input/Output System

4531)  .XLA      Add-In (file name extension) [Microsoft-Excel]

4532) XLAT      Translate

4533) XLF       Exceptional Fortran [IBM]

4534) .XLK      Backup (file name extension) [Microsoft-Excel]

4535) XLL       Extensible Link Language

4536) XLM       Excel Macro Language [Microsoft]

4537) .XLT      Template (file name extension) [Microsoft-Excel]

4538) XMIT      Transmit

4539) XML       Extensible Markup Language

4540) XMM       Extended Memory Manager [LIM/AST]

4541)  XMS       Extended Memory Specification [LIM/AST]

4542) XNS       Xerox Network System (protocol) [Xerox]

4543) XOFF      Transmitter Off

4544) XON       Transmitter On

4545) XOR       Exclusive OR (Also EOR)

4546) XP                Extreme Performance [Compaq]

4547) XPRM      Xerox Print Resources Manager [Xerox]

4548) XRT       Extensions for Real-Time

4549) XSL       Extensible Style Language

4550) XSMD      Extended Storage Module Drive (interface)

4551)  XSSI      Extended Server Side Includes

4552) XTAL      Crystal

4553) XTCLK     External Transmit Clock

4554) XUL       Extensible User-Interface Language [Netscape]

Y...

4555) YAM       Yet Another Modem [Omen Technology]

4556) YAHOO     Yet Another Hierarchically Officious Oracle [Internet]

4557) Y2K       Year 2000

4558) (Y/N)?    (Asks for a YES or NO decision)

4559) YTD       Year To Date

Z...

4560) .z        Packed file (file name extension - using Pack/Unpack

4561)  program)..lower case z..[Unix]

4562) .Z        Compressed file (file name extension - using

4563) Compress/Uncompress program)..upper case Z..[Unix]

4564) ZAK       Zero Administration Kit [Microsoft]

4565) ZAW       Zero Administration for Windows [Microsoft]

4566) ZBR       Zone-Bit Recording [IBM]

4567) Z-CAV     Zoned Constant Angular Velocity

4568) ZDL       Zero Delay Lockout

4569) ZDS       Zenith Data Systems

4570) ZIF       Zero-Insertion Force (socket)

4571)  ZIP       Zigzag In-Line Package +

4572) Zone Improvement Plan (ZIPcode)

4573) .ZIP      Compressed File (file name extension) [PKWare]

4574) .ZOO      Compressed File (file name extension) [Dhesi]

4575) ZPV       Zoomed Port Video [Toshiba]

4576) ZSL       Zero Slot LAN

4577) @         At + Commercial At

4578) ~         Tilde

4579) (_)                Underscore

4580) Wildcard character (asterisk)

4581)  *.*       Star-Dot-Star (represents

4582) Any file name.Any file name extension)

4583) .$$$      Temporary File (file name extension)

4584) 1GL       First Generation Language (machine language)

4585) 24/7            Twenty-Four Hours a Day, Seven Days a Week

286           80286 (microprocessor)

4586) 2GL       Second Generation Language (assembly language)

4587) 80386 (microprocessor)

4588) 3COM      3 Com Corporation (The 3 Coms are

4589) Computer, Communications and Compatibility)

4590) 3GL       Third Generation Language (programming language)

4591)  80486 (microprocessor)

4592) 4GL       Fourth Generation Language (descriptive language)

4593) 6DOF      Six Degrees Of Freedom

4594)

http://se.unisa.edu.au/vc~essays.html

BABEL: A GLOSSARY OF COMPUTER ORIENTED ABBREVIATIONS AND ACRONYMS Version 01B http://www.hjs.org/BABEL.HTM

ALSO SEE NetLingo which is an online dictionary about the Internet. It contains hundreds of words and definitions that describe the technology and community world of the Web.

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