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Computer Acronyms


Computer Acronyms

0 -A

2GL >> Second Generation Languages (Basic, Fortran, Cobol, C, etc.)
3D >> Three Dimensional (usually refers to graphics, movies, wallpaper etc. created to look as if they are 3 dimensional)
3GL >> Third Generation Languages (Pascal, C++, QBasic, etc.)
.386 >> A virtual device driver file extension
.3d2 >> A 3D graphic file extension
.3ds >> A 3D graphic file extension
4GL >> Fourth Generation Language (Java, HotMetal, Page Mill, etc. - visual languages)
AAB >> All to All Broadcast
AAL >> Asynchronous transfer mode Adaptation Layer
AAT >> Average Access Time
ABEND >> ABnormal END of program (mainframe and programming terminology)
ABI >> Application Binary Interface
ABIST >> Automatic Built In Self Test
AC >> 1. Alternating Current
AC >> 2. Automatic Computer
ACAP >> Application Configuration Access Protocol
.ace >> An archived (raw zipped) file extension
ACE >> Access Control Entry
ACL >> Access Control List
ACM >> Association of Computer Machinery
ACM >> Audio Compression Manager (Microsoft)
ACS >> Access Control System
ACS >> Asynchronous Communication Server (similar to file server for modems)
.act or ACT >> 1. Information manager program by Symantec
ACT >> 2. All Computer Technology (notebook/computer Co.)
ACT >> 3. Asynchronous Communication Terminal
ADC >> 1.Analog to Digital Converter
ADC >> 2.Advanced Data Connector (database caching w/IIS server)
.acw or ACW >> Microsoft's Accessibility Wizard
ADI >> American Documentation Institute
ADIS >> Automatic Data Interchange System
ADO >> Active Data Objects
ADP >> 1. Application Development Programming
ADP >> 2. Automatic Data Processing
AED >> Automated Engineered Design system
AFP >> Appletalk File Protocol
AFTP >> Anonymous File Transfer Protocol
AGA >> Advanced Graphic Adapter
AGC >> Automatic Gain Control
AGP >> Accelerated Graphics Port
AI >> Artificial Intelligence
.aif >> An audio file extension (also AIFF or AIFC)
AIFF >> Audio Interface File Format
AIX >> Advanced Interactive eXecutive (IBM's version of UNIX)
.ajp >> a popular java extension used by Anfy applets.
ALU >> Arithmetic Logic Unit
AM >> Amplitude Modulation
AMD >> Advanced Micro Devices Inc. (competitor to Intel and Cyrex process chip co.)
AMD >> Auto-Mounter Daemon
AMD >> Active Matrix Display
AMI >> American Mega-trends Inc. (BIOS manufactures ref: Pheonix, Award)
.ani or ANI >> ANImated cursors - (file extension used with Windows 95 instead of multiple .cur files)  Can also be used by other animation tools or programs.
ANI >> Automatic Numbering Identification
ANSI >> American National Standards Institute
AOL >> America On Line (Internet Service Provider)
AP >> Attached Processor
APA >> All Points Addressable (mode in which user has control over all aspects of display)
API >> Application Programming Interface
APIC >> Advanced Programmable Interrupt Controller (Intel)
.apj >> Macromedia Project File
APL >> Automatic Programming Language
APPC >> Advanced Program to Program Communications
AQL >> Acceptable Quality Level
ARA >> Appletalk Remote Access
ARAMP >> Application RAM Performance
.arc or ARC >> ARChived file: Older compression file used by PKZIP
.arj >> Compressed file extension
ARCnet >> Attached Resource Computer network (uses star, or bus token passing technology - slow)
ARPA >> Advanced Research Projects Agency
ARPANET >> Advanced Research Projects Agency Network (the beginning of the internet)
ARU >> Automatic Response Unit
ASAP >> Application Assessment And Planning package (Lotus migration application)
ASCII >> American Standard Code for Information Interchange (usually referring to generic text)
.asf or ASF >> Multi - Media file extension
ASK >> Amplitude Shif Keying
.asp or ASP >> Active Server Page
.asm >> Assembly Source Language source file extension
ASMP >> Asymmetric Multi-Processing
.asp >> Active Server Page.  (or Application Server Program) Scripting language that dynamically calls information to create a web page depending upon the information being requested.  Used by Microsoft's Server Software IIS.
ASP >> Application Service Provider
ASPI >> Advanced SCSI Programming Interface (communication port technology)
.asx >> Multi - Media file extension
AT >> 1. Asynchronous Transmission
AT >> 2. Advanced Technology
ATA >> AT Attachment interface
ATM >> 1. Adobe Type Manager (see True Type Font)
ATM >> 2. Asynchronous Transfer Mode
.au >> Audio File extension (often used by Real Media)
AUI >> Adapter Unit Interface
AUP >> Acceptable Use Policy
AV >> Authentication Verification
.avi >> Movie file extension
AVI >> Audio Visual Interleave
AWE >> Advanced Wave Effects

b2b >> Business To Business
b2c >> Business To Consumer
BAD >> Broken As Designed (Refers to inferior products that will require constant upgrades)
bash >> Borne Again SHell (2nd Generation Linux command shell)
BASIC >> Beginner All purpose Symbolic Instruction Code (programming language)
BASM >> Built in ASseMbler
BAT >> Batch (file extension)
BAUD >> Rate which information is exchanged (modems: Binary Assembly Un-assembly of Data)
BBS >> Bulletin Board System
BCD >> Binary Coded Decimal
BCL >> Batch Command Language
BCP >> Bulk Copy Program
BDC >> Back up Domain Controller (Type of server on an NT Microsoft Network)
BDE >> Borland Database Engine
BER >> Bit Error Rate
BERT >> Bit Error Rate Testing
BFI >> Bytes From Index (how HD heads find FAT entries)
BFT >> Binary File Transfer
BGI >> Borland Graphical Interface (Programming environment used by Borland languages)
BGP >> Borland Graphic Protocol
BHO >> Browser Helper Objects
BIM >> Business Information Managers (software)
BIND >> Berkley Internet Name Domain (early version of DNS servers)
BIOS >> Basic Input Output System
BIT >> BInary digiT
BITNET >> Because It's Time Network
BLOB >> Binary Large OBject (a field definition for databases such a paradox)
BMIC >> Bus Master Interface Controller
.bmp >> BitMaP file.  A type of graphic, ... file extension
BN >> Backbone Network
BNC >> British National Connector (terminator for cabling)
BNS >> Backbone Network Service
BOF >> Beginning Of File
BOOP >> Bill and the Office Of the President (Microsoft slang for management brain-storming)
BOS >> Basic Operating System
BOSS >> Business Organizer Scheduling System (one of the original hand-held organizers)
BOWEP >> Best Of Windows Entertainment Pack
BPI >> Library files used by exe files and device drivers in Windows 95 (dll format)
BPB >> BIOS Parameter Block (Disk technology)
bps >> Bits Per Second
BSD >> Berkley Software Distribution (released version and add-on's of/for UNIX)
BSOD >> Blue Screen Of Death (a Windows or NT crash)
BTP >> Batch Transfer Program
BUD >> Bring Up Diagnostics (NIC PC's use for setups)
BYOA >> Bring Your Own Access (access the Internet via telnet & your own ISP)

.cab >> Compressed file extension.  Started as Microsoft installation file type.
CAD >> Computer Aided Design
CAL >> Computer Aided Learning
CAM >> Common Access Method (SCSI type drivers for accessing devices)
CAD/CAM >> Computer Aided Design / Computer Aided Manufacturing
.cat >> Catalog File extension.
CAT >> Continuous Asynchronous Transmission
CAT5 >> Category 5 (refers to thickness and quality of wiring)
CATV >> Community Antenna Television
CAU >> Control Access Unit
CAV >> Constant Angular Velocity
CBT >> Computer Based Training
CCD >> Charge Coupled Device (integrated internal circuit inside computer)
CCS >> Common Command Set (instructions for SCSI interface)
CD >> 1. Compact Disk (Holds approx.630 Mb of info)
CD >> 2. Change Directory (DOS command)
CD >> 3. Carrier Dis-connect (modem talk)
CD >> 4. Carrier Detect (modem talk)
CD - DA >> Compact Disk - Digital Audio
CDDA >> Audio File in AIFF format
CD-R >> Compact Disk Recordable (drives that write (or burn) information to a CD)
CD-ROM >> Compact Disk - Read Only Memory
CD-RW >> Compact Disk - Re -Writeable (can be used or written to more than once)
CDB >> Common Dialog Box
CDE >> Common Desktop Environment (a UNIX windowed environment)
CDFS >> Compact Disk File System (similar to the FAT on a hard disk)
CDFS >> Compact Disk File System
CDRAM >> Cached Dynamic RAM
CDS >> 1. Comprehensive Display System
CDS >> 2. Compatible Duplex System
.cdr or CDR >> A Graphics File extension, often used by Corel Draw
CE >> The operating system used by the new palm size computers.
.cfm or CFML >> Cold Fusion Mark-up Language
CGA >> 1. Color Graphics Adapter
CGA >> 2. Computer Graphics Architecture
CGE >> Common Graphics Environment
CGI >> Common Gateway Interface
CGM >> Computer Graphics Metafile (file extension)
CHAT >> Conversational Hypertext Access Technology ("talking" in real time over the internet)
CHS >> Cylinder / Head / Sector
.chm or CHM >> Compiled Help Markup ... file extension
CIAC >> Computer Incident Advisory Capability (US govt. computer investigation agency)
CICA >> Center for Innovative Computing Applications
CICS >> Customer Information Control System
CIDR >> Classless Inter Domain Routing. Routers that, instead of maintaining large list of IP addresses, contain list of other backbone providers and services that do have the addresses, URL's, etc.)
CIFS >> Common Internet File System
CIM >> Computer Integrated Manufacturing
CIM >> Common Information Model
CIO >> Computer Information Officer
CIS >> Computer Information Systems (course: Computer Information Science)
CISC >> Complex Instruction Set Computer (refers to a processor, pentium)
CLASS >> Compiled java program, often used as .class extension
CLI >> Command Line Interface
CLP >> 1. CLiP art
CLP >> 2. windows clipboard file extension
CLS >> CLear the Screen (DOS command)
CMIP >> Common Management Information Protocol
CMOS >> Complementary Metal-Oxide Semiconductor
CMY >> Cyan, Magenta, Yellow
CMYK >> Cyan, Magenta, Yellow, blacK
CNA >> Certified Network (NetWare) Administrator
CNE >> Certified Network (NetWare) Engineer
CNT >> Certified Network (NetWare) Technician
COAST >> Card On A STick
.cob >> 3D graphic source file extension.
COBOL >> COmmon Business Oriented Language (programming language)
COBRA >> Common Object Request Broker Architecture
CODASYL >> Conference On DAta SYstem Logic
COM >> 1. COMmand (file extension) 3. COMmon
COM >> 2. Component Object Module
COM >> 3. COMmon object.
COMM1-4 >> COMMunication port
CON >> CONsole
COO >> Cost Of Ownership (the expense of attaining and maintaining particular computer needs)
.cpl >> File used by Windows Control PaneL (file extension)
CP/M >> Control Program for Microcomputers (first OS for PC's before DOS)
CPR >> Central Processor Recovery
CPS >> Clusters Per Sector (depends on the OS, AND the size of the disk partition)
cps >> Characters Per Second
CPU >> Central Processing Unit
CR >> 1. Carriage Return
CR >> 2. Carrier Response
CRC >> Cyclic Redundancy Check (similar to but not identical to check-sum)
CREN >> Corporation for Research and Educational Network (merge of BITNET and CSNET)
CRS >> Special display effects (wipe, slide fade, ex. screen savers, and/or presentation programs)
CRT >> Cathode Ray Tube (antiquated terminology for monitors - mainframe talk)
CSMA/CD >> Carrier Sense Multiple Access / Collision Detection (Ethernet communication)
CSNET >> Computer + Science NETwork
.css >> Cascading Style Sheet file extension.  (external file called by html web pages for design layout specifications)
CSS1 >> Cascading Style Sheets level 1 (specifications for layouts and design of WWW pages)
CSI >> Command Sequence Introducer
CSI >> CompuServe Inc.
CST >> Certified Systems Technician
CSU >> Channel Service Unit (also DSU: Digital Service Unit, and a router. A CSU/DSU is the modem that connects to the phone line)
.csv >> Comma Separated Value (usually a text file in this format, can be read by various databases and spreadsheets)
CTI >> Computer Telephone Integrated
CUA >> Common User Access
CUE >> Custom Updates and Extras (Egghead discount plan)
CUR >> CURsor (file extension)
CVRAM >> Cached Video RAM
CVS >> Concurrent Versions System
CWP >> Communicating Word Processor

Last edited by Doctor Inferno on 9th October 2008, 7:49 am; edited 1 time in total


Doctor Inferno
DA >> Destination Address (network terminology)
DAC >> Digital to Analog Converters
DAD >> Desktop Application Director (Word Perfect / Corel Perfect Office button bar)
DAO >> Data Access Objects (Visual Basic & Access terminology)
DASD >> Direct Access Storage Device (mainframe terminology - pronounced "daz-dee")
DAT >> 1. DATa (file extension)
DAT >> 2. Digital to Analog Converter
dB >> 1. DataBase
Db or dB >> 2. decibel
DBF >> DataBase File (file extension)
DBMS >> DataBase Management System
DBR >> DOS Boot Record (Information at track 0 sector 0 of a disk which allows PC to disk communication. Other items include the MBR, the Partition Table, and the FAT)
DC >> 1. Direct Couple (hook 2 computers or pieces together directly)
DC >> 2. Data Conversion
DC >> 3. Direct Cycle
DC >> 4. Direct Current (battery vs. 110 house electricity)
DC >> 5. Display Console (monitor)
DC >> 6. Design Change
DCC >> Direct Cable Connection
DCE >> Distributed Computing Environment
DCE >> Data Communications Equipment (hardware that does the communication, usually modems, routers, network cards, etc.)
DCI >> Display Control Interface (video display technology)
DCOM >> Distributed Component Object Model
DCS >> Data Control Systems
DCS >> Data Collection Systems
DCS >> Distributed Control Systems
DD >> Double Density (type of disk format - more than single density, less than High Density)
DDE >> Dynamic Data Exchange (predecessor to OLE in earlier versions of Windows)
DDK >> Device Driver Kit (Microsoft)
DDN >> Defense Data Network
DDS >> Direct Digital Sound
DEC >> Digital Equipment (Electronics) Corporation
DECnet >> Digital Equipment Corporation (proprietary networking protocols)
DEK >> Data Encryption Key (digital key to unlock encrypted files)
DEN >> Directory Enabled Network
DES >> Data Encryption Standard (security methods used for transmitting data)
DFS >> Distributable File System (Delphi, VB, BDE, etc.)
DFT >> Diagnostic Function Test
DGIS >> Direct Graphics Interface Standard
DHCP >> Dynamic Host Configuration Protocol
DHTML >> Dynamic HyperText Markup Language
.dic >> Dictionary file format
.dib >> Graphic File Format extension (in bitmap format)
DIF >> Data Interchange Format
DIM >> 1. DIMention
DIM >> 2. Dynamic Information Manager (shared contact information database)
DIM >> 3. Desktop Information Manager (Microsoft's information exchange)
DIM >> 4. "declares variables in Visual Basic programming language"
DIN >> Translated from German it stands for German National Connector
DIMM >> Dual In-line Memory Module (new processors or RAM slots hooked together)
D I/O >> Data Input / Output
DIP >> Dual In-line Package (the little on/off switches inside of computers, modems, etc.)
DIX >> DEC, Intel, and Xerox
DLC >> Data Link Control (a low-level protocol)
DLCI >> Data Link Connection Identifier
DLL >> Dynamic Link Library (file extension) (sometimes called a "dumb little library")
DMA >> Dynamic Memory Access (software equivalent to a hardware interrupt)
DMAK >> DMa request AKnowledgement
DMF >> Distributable Media Format (a Microsoft disk formatting that allows 1.77 Meg of info to be placed on a 3.5 disk that normally holds only 1.44 Meg
DMI >> Desktop Management Interface (keeping personal PC settings stored in a central location, (eg. server) Then where ever you login looks and acts like your PC (near future Technology) Networks running NT and 95 from server location are now doing this.
DMTF >> Desktop Management Task Force (joint effort Microsoft, Compaq, IBM, Cisco, etc. to standardize object management on LAN)
DNS >> Domain Name Server (changes addresses: to
.doc >> DOCument (file format extension used by word processors such as MS Word)
DO - IT >> Disabilities, Opportunities, Internetworking and Technology
.doc >> A word processing DOCument file extension. Often used by MS Word.
DOF >> Data Over Fiber
DOIP >> Data Over Internet Protocol
DOS >> Disk Operating System
.dot >> DOcument Template file extension.
DPI >> Dots Per Inch (printing resolution or screen resolution)
DPI >> Distributed Protocol Interface
DPMI >> DOS Protected Mode Interface
DRAM >> Dynamic Random Access Memory
DREQ >> DMA REQuest lines
DRI >> Digital Research Incorporated
DRV >> DRiVe (file extension)
DS# >> Drive Select (DS0, DS1, etc.) numbering starts at 0
DSDD >> Double Sided Double Density (type of disk format) 3.5 disks = 720 Kb
DSHD >> Double Sided High Density (type of disk format) most common 3.5 = 1.44 Mb
DSI >> Drive Select Interface
DSL >> Digital Subscriber Line (private sector connection for direct connect to internet)
DSLD >> Double Sided Low Density (old style of disk format - not used anymore)
DSP >> Digital Signal Processing
DTC >> DeskTop Conferencing
DTE >> Data Terminal (2. Transfer) Equipment
DTMF >> Dual-Tone Multi-Frequency
DTP >> Desk-Top Publishing
DUN >> Dial Up Networking
DUNCE >> Dial Up Networking Connection Enhancement
DVD >> Digital Video (or Versatile, Virtual) Disk (New CD technology that holds 4.3 - 17 Gb depending upon format)
DVE >> Digital Video Effects
DVI >> Digital Video Interactive
DX >> A type of processor that also does numeric processing (better than an SX or SLC)

EBCDIC >> Extended Binary Coded Decimal Interchange Code (8-bit code to represent 256 chars.)
EDB >> Embedded Data Base
EBR >> Enterprise Backup / Restore (UNIX tape backup utility)
ECC >> Error Correction Code
ECNE >> Enterprise Certified NetWare Engineer
ECP >> Extended Capabilities Port (setup in BIOS for LPT1 - faster than EPP, or SPP)
ECS >> Enhanced Chip Set
ECTP >> Ethernet Configuration Test Protocol
ED >> 1. External Device
ED >> 2. End Delimiter (network protocol terminology)
EDI >> Electronic Data Interchange
EDLIN >> EDitor for LINe text
EDO >> Extended Data Out (new RAM and DRAM data access technology)
EDOS >> Enhanced DOS for windows
EEMS >> Enhanced Expanded Memory Specification
EFF >> Electronic Frontier Foundation (studies impact of computers on society)
EFI >> Extensible Firmware Interface
EFT >> Electronic Funds Transfer
EGA >> Enhanced Graphics Adapter (Accelerator)
EIDE >> Enhanced Integrated Drive Electronics
EISA >> Extended Industry Standard Architecture
ELS >> Entry Level Systems (early terminology for scaled down PC - no frills)
EMACS >> Editing MACroS (Linux / Unix text editor)
EMF >> Enhanced MetaFile (graphic file format, often used as extension)
EMI >> Electro-Magnetic Interference
.eml >> and Email file extension
EMP >> Electro-Magnetic Pulse
EMS >> Expanded Memory Specification (LIM Lotus / Intel / Microsoft)
ENIAC >> Electronic Numerical Integrator and Calculator
EOF or eof >> End Of File
EOJ >> End Of Job (file transfer marker)
EOL >> End Of Line (control characters used with first generation languages)
EOM >> End Of Message (file transfer marker)
EOT >> End Of Transmission (file transfer marker)
EPBR >> Extended Partition Boot Record
EPP >> Enhanced Parallel Port (can use longer printer cable than SPP)
EPROM >> Erasable Programmable Read Only Memory (re-programmable ROM chips)
EEPROM >> Electronic Erasable Programmable Read Only Memory
EPS >> 1. Encapsulated PostScript (file extension)
EPS >> 2. Email Postal Software
EPTS >> Enhanced Print Trouble Shooter
ERD >> Emergency Recovery Disk
EROM >> Erasable Read Only Memory
ERU >> Emergency Recovery Utility (configuration backup utility with Windows 95)
ESD >> EletroStatic Discharge (transfer of electrical current from carrier to object)
ESDI >> Enhanced Small Device Interface (Hard disk interface, older than SCSI, ISA, PCI newer than the ST506)
ESP >> Enhanced Serial Port
ESS >> Electronic Switching System
EULA >> End User License Agreement
EXE >> Executable (file extension)
EXE2BIN >> PKWare program (exe2bin.exe) that converts a compression (zip. arc, lhz, etc.) file to a binary or executable file. This allows a user to decompress the file without having a copy of PK Zip
Ext2 >> Sometime noted as Ext2fs; this is the file system used by Linux OS's
e-Zine >> Electronic magaZINE

F - G
FAP >> File Access Protocol
FAQ >> Frequently Asked Questions (files often found on BBS and Internets)
FAT >> File Allocation Table (the map a computer stores on a disk to where everything is)
FAV >> Microsoft Favorites (bookmarks of web sites)
FC-AL >> Fiber Channel Arbitrated Loop (bus technology - better/faster than SCSI)
FCBS >> File Control BlockS

FCI >> Flux Changes per Inch (drive tech. terminology)
FCL >> Fiber Channel Loop
FCS >> Frame Check Sequence (Token Ring)
FCS >> Fiber Channel Standard
FDOS >> Floppy Disk Operating System
FED >> Field Emission Display (type of monitor)
FFDB >> Flat File DataBase
FFS >> Fast File System
FEP >> Front End Processor
FFS >> Fast File System (Microsoft and OS/2 first incarnation of HPFS)
FIFO >> First In First Out (Processing method of information on first come - first serve basis)
FILO >> First In Last Out (Processing Method)
Fkey >> Function Key
.fla >> Macromedia Flash source file extension.
.fli >> Animation source file extension.
FM >> Frequency Modulation
FNC >> Federal Networking Council (governments attempt to control the internet: DoD, DARPA, NASA, etc.)
.fon >> FONt file (extension)
FORTRAN >> FORmula TRANslation language (programming language)
FPI >> Flux changes Per Inch
FPM >> Fast Page Mode (older RAM - being replaced by EDO RAM)
FRAM >> Ferro-electric RAM
FRM >> FoRM file (often a visual basic or database file)
FRPI >> Flux Reversals Per Inch
FSD >> File System Driver (OS/2 Warp)
FTP >> File Transfer Protocol (refers to the standard method a file is transfered from an internet to a local computer, often called downloading)
FUP >> Frequently Used Programs
G3 >> Macintosh processor
Gb (Gig) >> 1,000,000,000 bytes (Gigabyte)
GCC >> GNU C Compiler
GCR >> Group Code Encoding (method of encoding and securing data)
GDI >> Graphical Device Interface
GDT >> Global Descriptor Table (a database, or register, for Windows to address memory)
GEIS >> General Electric Information Service (Web based catalog service)
GEM >> Global Enterprise Manager
GENIE >> General Electric Network Information Exchange
.gho >> Ghost file extension (.ghs when image is spanned across multiple media). Ghost is a tool used to create an image of a disk or drive.
.gid >> Windows configuration file extension.
GIGO >> Garbage In Garbage Out (computer slang)
GML >> Generalized Markup Language
GNN >> Global Network Navigator
GNU >> recursive acronym for GNU's Not UNIX - Linux style build of the UNIX kernel
GP >> General Purpose
GPC >> General Purpose Computer
GPF >> General Protection Fault (A window error message that occurs when a program crashes)
GPL >> GNU Public License
GPT >> GUID partition table
GUI >> Graphical User Interface (slang - "gooey")
GUID >> Globally Unique IDentifier
.gz >> a raw compressed image file extension used across multiple files.

HAL >> Hardware Abstraction / Access Layer (NT layer of protocols to define hardware)
HCL >> Hardware Compatibility List (what hardware works with Windows 95, a text file)
HCU >> Home Computer User
HD >> 1. Hard Disk 2. High Density (type of disk format)
HDA >> Head Disk Assembly (terminology for drive construction)
HDD >> Hard Disk Drive
HDML >> Handheld Device Markup Language (code for PDA's)
HDR >> Host Data Replicator (computer that stores multiple databases from various systems.)
HFS >> Hierarchical File System (Macintosh)
HGA >> Hercules Graphics Adapter
HHD >> Hand Held Device (pocket organizer, scanner, pager, etc.)
.hlp or HLP >> HeLP file (file extension)
HMA >> High Memory Area (Architecture)
HP >> Hewlett Packard
HPC >> Hand held Personal Computer
HPFS >> High Performance File System (OS/2 terminology for FAT)
HPG >> Hewlett-Packard Graphics
HPGL >> Hewlett-Packard Graphics Language
HPPCL >> Hewlett-Packard Printer Control Language
HS >> High Speed
HSTRA >> High Speed Token Ring Alliance (HSTR for High Speed Token Ring)
.ht or HT >> Hyper Terminal (file extension)
.htm >> HyperText Markup language file extension. File extension name used for web pages.
HTML >> Hyper Text Markup Language (programming for Internet web pages) actually a text formatting tool
.htt >> Hyper Text Template
HTTP >> HyperText Transfer Protocol (1 way information is sent over and internet. This is the primary way information travels over the phone lines from a server to a local computer, protocols are agreed upon standards or configurations that computers use)
Doctor Inferno
I/G bit >> Individual / Group bit (for addressing network information)
IAHC >> International Ad Hoc Committee (computer group that studies and suggests standard for new and existing computer technology)
IBM >> International Business Machines
IC >> Integrated Circuit
ICA >> Independent Computing Architecture
ICAP >> Internet Calendar Access Protocol (Lotus Notes 4.x / Domino)
ICL >> ICon Library file (contains multiple icon bitmaps)
ICM >> Image Color Mapping (so printed colors match screen colors)
ICMP >> Internet Control Message Protocol
ICO >> ICOn bitmap file
ICPA >> Internet Consumer Protection Agency
ID >> Internal Device
IDA >> Intelligent Drive / Disk Array
IDAPI >> Internal Database Application Programming Interface
IDC >> International Data Corporation
IDE >> 1. Integrated Development Environment
IDE >> 2. Integrated Drive Electronics interface (drive/device controller technology)
IDL >> Interface Definition Language
IDN >> Internet Domain Name
IDP >> Integrated Data Processing
IE or IE4 >> Internet Explorer (version 4.x) - Microsoft's Web Browser.
IEAK >> Internet Explorer Administration Kit (profmgr.exe)
IEEE >> Institute of Electrical and Electronics Engineers
IFS >> Installable File System (Delphi, VB, BDE, etc.)
IIS >> Internet Information Server (Microsoft Internet Server software)
ILS >> Internet Locator Service (component of NT 4.0 +)
IM >> Instant Messaging (real time chat)
.img or IMG >> Image File (file extension)
IMAU >> Intelligent Multi-Access Unit
INF >> INformation File (file extension)
INI >> Initialization (file extension)
INS >> InterNet communication Settings
IO >> Input / Output
IOE >> Input Output Errors (95 terminology for GPF's and Application Errors)
IOP >> Input Output Processors
IOS >> Inter-network Operating System
IP >> Internet Protocol
IPC >> Inter-Processes Communications
IPL >> Initial Program Loading
IPS >> Internet Personalization Service (component of NT 4.0+)
IPSec >> Internet Protocol Security
IPX >> Internet Package eXchange (how computers with different OS's transfer data)
IPX / SPX >> Inter network Packet eXchange / Sequential Packet eXchange
IRC >> Internet Relay Chat
IRL >> Information Retrieval Language
IRP >> I/O Request Packet (NT Server terminology)
IRQ >> Interrupt ReQuest
IrDA >> Infrared Data Association
IS >> Information Services
ISA >> Industry Standard Architecture
ISAM >> Indexed Sequential Access Method (database access protocols, Btrieve and Paradox)
ISDN >> Integrated Services Digital Network (Internet connection: faster than a modem, but slower than a dedicated T-1 or T-10 connection.- Allows digital and voice data to share the same line)
ISM >> Information Services Manager
ISO >> International Organization for Standardization
ISP >> Internet Service Provider
IT >> Information Technology (replacing the term IS for Information Systems)

J - K
J++ >> Microsoft's Java programming language
.jar >> Java Archive files, used to save web page download time.
JCL >> Job Control Language (mainframe programming language)
JIT >> Just In Time (compiler / translator that only runs code when needed)
JNI >> Java Native Interface
JPEG >> Joint Photographic Experts Group (file extension JPG)
.jpe >> Joint Photographic Experts Group (file extension JPG)
.jpg >> Joint Photographic Experts Group (file extension JPG)
JPL >> Java Programming Language
JRE >> Java Runtime Environment
.js >> JavaScript. Used when javascript is written in an external file, then called by html document.
JSE >> JavaScript Encoding.
.jsp or JSP >> Java Server Page
JUG >> Joint Users Group (group of dedicated, perhaps proprietary computers)
JVM >> Java Virtual Machine
Kb >> Kilobyte (1024 bytes)
Kbps >> Kilobytes per second

L2TP >> Layer 2 Tunneling Protocol
L-zone >> Landing zone for the read/write heads on a disk
LADDR >> LAyered Device Driver Architecture (SCSI type drivers for accessing devices)
LAN >> Local Area Network
LBA >> Local Bus Addressing (how BIOS can read HD larger than 504 Mb)
LBA >> Sometimes considered Logical Block Addressing
.lbi >> Library file. Used to hold extraneous information from program to improve performance.
LCC >> Leadless Chip Carrier
LCD >> Liquid Crystal Display (often found on laptops)
LDAP >> Lightweight Directory Access Protocol (one way server(s) manipulate multiple disks / users / and access levels)
LDF >> Logical Disk Format (the formatting done from a users level)
LDP >> Linux Documentation Projection (on going effort to document Linux OS)
LDT >> Local Descriptor Table (Table of contents Windows uses to address memory)
LED >> Light Emitting Diode
LF >> Line Feed
LFN >> Long File Names
LH >> Load High (a command in MS-DOS)
.lha >> Compressed file format (extension)
LILO >> LInux boot LOader
LIM >> Lotus / Intel / Microsoft
LIMA >> Lotus / Intell / Microsoft / AST standards (extended memory management software)
LIMS >> Library Information Management System
LISP >> LISt Processing (John McCarthy - 1961)
LLC >> Logical Link Control
LLDF >> Low Level Drive Format (done at factory)
LLF >> Low Level Format
.lnk >> Link File Extension. Used to create shortcuts in Microsoft Windows.
.log or LOG >> Log files maintain information about who is visiting a web site, and what they look at.
LPC >> Local Procedure Call (NT Server terminology)
LPM >> Lines Per Minute (How fast a printer prints)
LPT >> Local Parallel Transmission (the printer ports)
LPT1 >> Line Printer porT
LQ >> Letter Quality
LRU >> Least Recently Used (How Windows decides which information to flush from cache)
LSB >> Least Significant Byte
LUG >> Linux Users Group
LUN >> Logical Unit Number
.lwo or .lwz >> Lightwave (high end 3D generation program) file extension.
.lzh >> Compressed file format extension (raw data compression)
LZ >> Landing Zone (where the read/write heads go on a disk to read information)

.m1v >> Multimedia file format extension (mpeg format)
MAC >> Media Access Control
MAD >> Master Account Domain (NT Server terminology)
MAN >> Metropolitan Area Network (several LAN's connected together in a similar geographical region. Hospitals and Colleges use these often to share resources)
MAN >> MANual pages (Unix help files)
MANIAC >> Mathematical Analyzer Numerical Integrator and Computer (early mainframe)
MAPI >> Mail messaging Application Programming Interface
MASM >> Microsoft ASseMbler language
MAU >> Multi- Access Unit (patch panel for IBM to tie to server)
.max or MAX >> 3D Studio (a high end 3D graphics program) file extension for source files.
Mb (Meg) >> 1,000,000 bytes (Megabyte)
Mbps >> Megabytes per second (or Mega-bits Pers Second)
MBR >> Master Boot Record (Part of the information starting at track 0 sector 0 of a disk which allows a computer to 'communicate' with that disk. Other items include the DOS Boot Record, the Partition Table, and the FAT)
MCI >> Media Control Interface
MCIS >> Microsoft Commercial Internet System
MCL >> Microsoft Compatibility List
MCSE >> Microsoft Certified System Engineer
MCSD >> Microsoft Certified Solutions Developer
MCP >> Microsoft Certified Professional
MCPS >> Microsoft Certified Product Specialist
MCST >> Microsoft Certified Systems Technician
MCT >> Microsoft Certified Trainer
MD >> Make Directory (DOS command)
MDA >> Monochrome Display Adapter
MDB >> Microsoft DataBase (file extension)
MDI >> Multiple Document Interface (ie. Word can open 2 files at once vs. notepad)
MEt >> Memory Enhancement technology (HP Lazerjet memory technology)
MFC >> Microsoft Foundation Class (backbone of database architecture for Access)
MFM >> Modified Frequency Modulation encoding (old disk drive technology)
MFT >> Master File Table (sort of a master FAT that NT uses to recover from errors)
MFTP >> Multicast File Transfer Protocol (used for data streaming)
MHS >> Message Handling System (how email handles electronic information addressing)
.mid >> A sound file (Musical Instrument Digital Interface) extension.
MIDI >> Musical Instrument Digital Interface
MIME >> Multi-purpose Internet Mail Extensions (address conventions for internet e-mail)
MIO >> Modular Input Output
MIPS >> Million of Instructions Per Second
MIS >> Management Information Systems
MIT >> Massachusetts Institute of Technology
MLP >> Microsoft License Pack (referred to for multi-user applications)
MMC >> Multi - Media Cloaking (frees memory for other applications)
MMCD >> Multi - Media Compact Disk
MMS >> Microsoft Merchant Server
MMS >> Microsoft Membership System
MMU >> Memory Management Unit
MMX >> Multi-Media eXchange: (New Pentium micro-processor by Intell that improves 3D rendering, although Intel and Microsoft claim the letters don't stand for anything in particular)
MODEM >> MODulate / DEModulate
MOF >> Managed Object Format
MOL >> Machine Oriented Language
MOM >> Microsoft Office Manager (The MS Office button bar)
.mp# >> .mp1, mp2, mp3, mp4 are various versions of the mpeg file format (Multimedia files)
MPC >> Multi-media Personal Computers
.mpg or MPEG >> Motion Picture Experts Group (file extension MPG)
MPR >> Multi-Protocol Routing
MPS >> MicroProcessor System
MPU >> MicroProcessor Unit
MR >> Modem Ready
MRUP >> Most Recently Used Program
MS >> MicroSoft (That little company up in Redmond, Washington)
MSAU >> Multi-Station Access Unit
MSB >> Most Significant Byte
MSCDEX >> MicroSoft Compact Disk EXecutable (file driver for CD-ROM, often referred to as the messy ducks)
MSD >> MicroSoft Diagnostics (program that comes with DOS)
MS-DMF >> MicroSoft Distributable Media Format (see DMF)
MSDN >> MicroSoft Developers Network (Microsoft software developers forum)
.msg or MSG >> Microsoft Outlook email file format.
MSN >> MicroSoft Network
MSNBC >> MicroSoft National Broadcasting Company
MSO >> Multiple Systems Operator
MTA >> Mail Transport Agents
MUD >> Multi-User Domain (Dungeon) - multiple persons play games in real time via Internet)
MVS >> Multiple Virtual Systems
.mxp >> Macromedia file type used for Flash Files

NAI >> Network Associates Incorporated (combined company including McAfee Inc.)
NAS >> Network Attached Storage.
NBT >> NetBIOS over TCP/IP (method of transporting Microsoft's NetBIOS protocols over multiple networks using TCP/IP protocol suites.
NC >> Network Computer
NC >> Network Card
NCC >> Network Control Center
NCR >> National Cash Register (pre IBM)
NCSA >> National Computer Security Association
NDIS >> Network Device Interface Specification
NDS >> Network Direct Services
NEC >> Nippon Electric Company (Company that makes computer equipment)
NET >> Network
Net BEUI >> Network BIOS Extended User Interface
NetBIOS >> Network Basic Input Output System
.nfo or NFO >> Information file format used by Microsoft for advanced Windows systems. Also used by hackers to store hacked serial number and installation information.
NFS >> Network File System (Sun Microsystem's Network Operating System)
NIC >> Network Interface Card
NIP >> Network Interface Protocol
NIS >> Network Information Services.
NIST >> National Institute of Standards and Technology
NLQ >> Near Letter Quality (printer terminology - usually old 24-pin dot matrix)
NMM >> Network Management Module
NMS >> Network Management System
NNTP >> Network News Transfer Protocol
NOS >> Network Operating System
NPTN >> National Public Telecomputing Network (public network based in Cleveland, OH.)
NPU >> Numeric Processing Unit
NRZ >> Non Return to Zero (programming code return terminology)
NSTL >> National Software Testing Laboratories
NT >> New Technology (Microsoft's networking software - version 3.1 was first release)
NT >> Sun coined the phrase "Not There" for the new Microsoft technology
NT >> IBM coined the phrase "Nice Try" for the new Microsoft technology
NTFS >> New Technology File System (WFW 3.11 and Windows 95)

OAA >> Open Agent Architecture (new interface architecture for human/PC interaction including hand written, typed , and spoken commands - being developed by SRI International)
OADB >> Open Architechture Data Base (like supporting standards like SQL)
ObjectPAL >> Object oriented Program Application Language (Bundled with Borland/Paradox/Corel)
.obj or OBJ >> Object file, often used with 3D file generation programs. (extension)
OCR >> Optical Character Recognition (scanner terminology for software)
.ocx >> Active X file extension.
ODAPI >> Open DataBase Application Programming Interface
ODBC >> Open DataBase Connectivity (2. Components) (Microsofts shared data connections)
ODI >> Open Datalink Interface
OEM >> Original Equipment Manufacture
OLAP >> OnLine Analytical Processing (32 bit applications with links to ActiveX and Java Beans)
OLE >> Object Linking and Embedding
OLE DB >> Database that supports objects, linking, and embedding.
OM >> Original Manufacture
OOP >> Object Oriented Programming
OOPS >> Object Oriented Programming System
OOP/ED >> Object Oriented Programming / Event Driven
OpenDOC >> Open Document file system (MAC/Apple- and NT-4.0 terminology for FAT that will allow the 2 to share files)
ORACLE >> On-line Inquiry and Report Generator (Unix db)
ORB >> Object Request Broker
OS >> Operating System
OS/2 >> IBM graphical operating system
OSI >> Open Systems Interconnection (Suite of standard protocols for internet communication)
OSR >> Original Service Release
OSR >> microsoft Office Service Release (patch and upgrade to Office 97)
OTM >> Object Transaction Monitor
Doctor Inferno
P2P >> Peer To Peer ... computers connecting over the internet (Kazaa, Napster etc are examples)
P7? >> P7A, P7B etc are used in email encryption and certification files.
PAL >> Phase Alteration Line
PAP >> Password Authentication Protocol
PARC >> Palo Alto Research Center (where a lot of todays technology was developed)
PBX >> Private Branch Network
PC >> Personal Computer
PCB >> Printed Circuit Board
PCI >> 1. Personal Computer Interface
PCI >> 2. Peripheral Component Interconnect
PCL >> 1. Printer Control Language
PCL >> 2. Print Code Language
PCMCIA >> Personal Computer Memory Card International Association
PCMCIA >> People Can't Memorize Computer Industry Acronyms (coined take off of original)
PCS >> Personal Computer System
.pct >> Graphics file extension (PiCTure)
PCT >> Personal Computer Tools (commonly known as PC Tools, a utility package)
PCT >> Private Communication Technology
PDA >> Personal Desktop Assistant (hand held computer)
PDC >> Primary Domain Controller
.pdf or PDF >> Portable Document File. Used by Adobe for highly compressed document files. Can contain link, pictures, bookmarks, etc.
PDN >> Public Data Network (fore-father to the Internet)
PDP >> Plasma Display Panel (laptops)
PDS >> Premises Distribution System (AT&T cabling standards for networks)
PERL >> Practical Extraction and Report Language (found with flavors of UNIX / Linux) programming language - more precisely text reader and generator
PERT >> Program Evaluation and Review Techniques
.pfm >> a Font file extension. (Used by Adobe font extensions)
PGA >> Pin Grid Array (AMD mother board terminology)
PGA >> Professional Graphics Adapter
PGP >> Pretty Good Privacy (refers to network and email security)
.php >> Personal Home Page. Scripting that uses database resources in its' scripting to supply web pages depending upon the content being requested. (similar to Microsoft's .asp scripting)
.pic or .pict >> Picture file format
PIC >> Prioritized Interrupt Controller
PID >> Process IDentification (number assigned by OS kernal to a process)
PIF >> Program Information File (file extension for Windows 3.x)
PILOT >> Programmed Inquiry for Learning or Teaching (rumor:) Also a popular 3-com PDA
PIM >> Personal Information Manager
PIN >> Personal Identification Number
PING >> Packet INternet Gopher (request sent to another computer; waits for answers)
PIO >> Programmed Input / Output
PJL >> Print Job Language (HP printer language)
PKI >> Public Key Infrastructure (topology for coding data)
PLCC >> Plastic Leaded Chip Carrier (Pentium socket on Mother Board)
PLLC >> Plastic LeadLess Chip (The Pentium Chip)
.png >> Portable Network Graphic. Newer graphic format that uses smaller files to display pictures.
PnP >> Plug aNd Play (new technology that allows a computer to "read" your hardware)
PNRP >> Palm Name Recognitiion Protocol (Palmpilot communication with desktop protocol)
POC >> Point Of Contact
PODC >> Pentium OverDrive Chip
POP >> Power On Password
POP >> 1. Post Office Protocol (how PC's get email from internet)
POP >> 2. Point Of Presence (internet and WWW terminology for location of server)
POS >> Point Of Sale (the scanners you see in supermarkets)
POST >> Power On Self Test
POSIX >> Portable Operating System Interface based on uniX
POTS >> Plain Old Telephone System
PPI >> Pay Per Incident: Tech service term, pay for each call to help desk
PPM >> Pages Per Minute (printer terminology)
PPN >> Peer to Peer Networking (2 computers hooked together)
PPP >> Point to Point Protocol
PPTP >> Point to Point Tunneling Protocol
PQFP >> Plastic Quad Flat Pack (AMD motherboard terminology)
.prj >> Project File.
PROM >> Programmable Read Only Memory
.psd >> Password File
.psp >> Paint Shop Pro file extension. A popular graphic paint program.
PSP >> Personal Software Products (division of IBM)
PST >> Power on Self Test
.psw >> Password File
PT >> Partition Table (Part of the information starting at track 0 sector 0 of a disk which allows a computer to 'communicate' with the disk. Other items include the MBR, DBR, & FAT)
PTPC >> Palm-Top Personal Computer (new hand held computers)
PUD >> Power Up Diagnostics
PUP >> Power Up Password
PUN >> Physical Unit Number (method of defining equipment of a computer)
PVC >> Permanent Virtual Circuits
PVN >> Private Virtual Network
PWL >> PassWord List (can refer to network profiles or Windows profiles)
PWS >> 1. Personal Web Server
PWS >> 2. Peer Web Server

QBE >> Query By Example
QDOS >> Quick and Dirty Operating System (often used by bootable floppy diagnostic software due to low overhead, and small files size.)
QEMM >> Quarterdeck Extended Memory Manager
QIC >> Quarter Inch Cartridge (refers to tape drives used for backups)
QoS >> Quality of Service (first used with ethernet measurement of data transfer)
R&D >> Research and Development
RAD >> Rapid Application Development
RADIUS >> Remote Authentication Dial-In User Service
RAID >> Redundant Array of Inexpensive Disks
RAM >> Random Access Memory
RAMA >> Relational Access Management Association
.rar >> Raw compression data used for programs like winraw. (file extension)
RAS >> Remote Access Server / Service
.raw >> Raw compression data used for programs like winraw. (file extension)
RD >> Resource Domain (NT Server terminology)
RDB >> Relational Data Base
RDBMS >> Relational Data Base Management System
RDO >> Remote Data Objects
RDRAM >> Rambus DRAM
REM >> REMark (command in DOS to ignore a statement as a command)
REPO >> Remote Emergency Power Off
REt >> Resolution Enhancement technology (HP lazerjet technology)
REXX >> REstructured eXtended eXecutor (high level language for OS/2)
RFC >> Request For Comments (Similar to FAQ's in content)
RFI >> Radio Frequency Interference
RFP >> Request For Proposal
RGB >> Red Green Blue (type of color display and printing)
.rib >> Graphics file extension
RIFF >> Resource Interchange File Format
RIP >> Routed Internetworking Protocol (Routing Information Protocol)
RISC >> Reduced Instruction Set Computer (minimal "self-processing" power to reduces cost)
RLE >> Run Length Encoding
RLL >> Run Length Limited code (method of recording digital data)
RLN >> Remote Lan Node
RMON >> Remote MONitoring
RNA >> Remote Network Access (by use of Dial Up Connection)
.rnk >> Dial Up Networking shortcut file extension
ROM >> Read Only Memory
RPC >> Remote Procedure Calls
RPG >> Report Program Generator
RPG >> Role Playing Games (often networked)
RPM >> Redhat Package Manager (Bundled manager for Redhat distributed Linux)
RS >> Recommended Standard (ie RS-232)
RSVP >> Resource ReserVation Protocol
RTA >> Real Time Audio (music over the internet)
RTF >> Rich Text Format (extension for files that most windows word processors can read)
RUPL >> Recently Used Program List
R/W >> Read / Write (usually refers to the heads inside a disk drive)

SA >> Source Address
SAA >> System Application Architecture
SAM >> Security Administration / Account Module / Manager (NT profile terminology)
SAP >> Sybase Application Programming language
SAP >> Service Access Point
SAP >> Statistical Analysis Programming language
SAP >> Service Advertising Protocol (NT uses to announce available resources to Novell equip)
SAP >> System Applications and Products
SAP >> Secure Application Protocol
SCAM >> SCSI Configured Auto-Magically (plug-and-play SCSI cards)
SCSI >> Small Computer System Interface
.sct >> Microsoft Script Component.
SD >> Super Density (a type of format for new DVD disks that allows up to 17 Gb of data to be stored on one CD)
SDLC >> Synchronous Data Link Control
SDRAM >> Synchronous Dynamic RAM
.sdk or SDK >> Software Development Kit (Java or Microsoft usually)
SEC >> Single Edge Card
SEM >> Search Engine Management
SEO >> Search Engine Optimization
SERP >> Search Engine Results Page
SET >> Secure Electronic Transaction (software to allow monetary transactions from PC - secure)
.set >> Drivers file extension found with some older Windows programs such as Lotus 123
SFC >> System File Checker (command line program found with Windows XP)
SFD >> Start Frame Delimiter
SFN >> Short File Name
SGML >> Standard Generalized Markup Language
SID >> Security IDentification (NT terminology) or System ID, or Serial Input Data
SIM >> SIMmulators - software games and programs that simulate things like flying, driving, etc.
SIMM >> Single In-line Memory Module
SIP >> Single In-line Package
.sit >> Stuff-It (compressed file extension for Macintosh computers)
SLA >> Service Level Agreement (vendor agreement on what's under warranty for how long)
SLC >> Single Line Controller (A type of processor that does not process math function separately - and can not be upgraded) often found in older laptop computers.
SLC >> an IBM CPU (386 SLC) that is an Sx, Low power chip with Caching
SLIP >> Serial Line Internet Protocol
SMB >> Server Message Blocks
SMD >> Surface Mounted Device (individual chip mounted on a PCB without leads)
SMP >> Symmetric Multi-Processing
SMS >> System Management Server
SMTP >> Simple Mail Transfer Protocol
SNA >> Systems Network Architecture
.snd >> Sound File extension in AU format
SNMP >> Simple Network Management Protocol
SOHO >> Small Office Home Office (computer or program with enough speed or functionality for business use. May not have sound or a lot of bells and whistles)
SOM >> System Object Modle
SPA >> Software Publisher's Association
SPE >> System Policy Editor
SPOOL (?) >> Simultaneous Peripheral Operations On Line
SPP >> Standard Parallel Port
SPS >> Stand-by Power Supply (see UPS)
SPT >> Sectors Per Track
SPX >> Sequenced Packet eXchange
SQL >> Structured Query Language (database standards)
SRAM >> Static RAM
SRC >> Sample Rate Conversion
SSA >> Serial Storage Architecture (another communications port setup (like SCSI) that has fast data transfer but requires high demands of DMA channels)
SSDD >> Single Sided Double Density (type of computer disk formatting)
SSHD >> Single Sided High Density (type of computer disk formatting)
SSI >> Server Side Includes. (web technology that allows for dynamic data exchange in web pages)
SSL >> Secure Sockets Layer (usually NT terminology)
SSLD >> Single Sided Low Density (type of computer disk formatting)
ST506 >> Shugart Technology (old disk technology manufacture)
STP >> Shielded Twisted Pair
STX >> Start of TeXt
SUL >> Single User License
SVGA >> Super video Graphics Adapter
SVRAM >> Synchronous VRAM
.swd >> Macromedia flash debugging file.
.swf >> Flash File Extension. Usually an external flash file called by the html document.
SX >> A type of processor that does NOT do numeric processing separately - but a Math coprocessor chip can be added to upgrade the unit. (Better than an SLC but not as good as a DX or Pentium)
SYS >> System
SYSIN >> SYStem INput
SYSOP >> SYstems OPerator
Doctor Inferno
TAPI >> Telephony Application Programming Interface
.tar >> Archive file. Compressed raw data file.
TAR >> TApe Archive
TASK >> Task Automation Scripting Kit
TASM >> Turbo ASseMbler programming language (Borland / Delphi)
TCO >> Total Cost of Ownership
TCP/IP >> Transfer Control Protocol / Internet Protocol
TCPA >> Trusted Computer Platform Alliance - collaboration among Intel, Microsoft, and others to standardize the computer industry, and drive innovative solutions outside the 'mainstream' corporations into an unsupported environment.
.tex >> Texture files in various formats used by graphics, and 3D rendering programs.
TI >> Texas Instruments
.tif >> graphic file extension (see TIFF)
TIFF >> Tagged Information File Format
TLA >> Three Letter Acronyms (I actually saw this one in publication)
TM >> Test Mode (modem diagnostics)
TMP >> TeMPorary File (file extension)
TOD >> Time Of Day (refers to a computers internal clock)
TOS >> Tape Operating System
TPI >> Tracks Per Inch (disk drive terminology)
TR >> 1. Terminal Ready (modem talk) 2. Token Ring (type of networking)
TRB >> Terminating Resistor Block (a DIP or SIP on end of Drive cable to terminate signal)
TRIM >> Training Records Information Management (software package)
TRM >> Terminal (file extension)
TSR >> Terminate and Stay Resident (programs that load into memory and stay there)
TTF >> True Type Font file (file extension)
TTL >> Transistor to Transistor Logic
TWAIN >> Technology Without Any Interesting Name (humorous)
.txt or TXT >> TeXT (file extension)
TZI >> Track Zero Interrupter (how a disk drive knows where to start)

U -V
U/L bit >> Universally / locally administered bit (for addressing network info)
UAE >> Unrecoverable Application Error (error message when a program crashes)
UART >> Universal Asynchronous Receiver Transmitter (new chip technology that controls serial port transmission)
UCM >> Universal Cable Module
UDC >> User Defined Command (setting up macros for function keys and other keys)
UDF >> Universal Disk Format
UDP >> User Datagram Protocol (Network protocol for transferring data packets)
UI >> User Interface
UID >> User IDentification (internet, intranet, and server login accesses)
ULS >> Uniform Location Service (used to identify nodes on the net)
UMB >> Upper Memory Blocks
UML >> Unified Modeling Format
UNC >> Universal Naming Conventions
UPS >> Un-interruptable Power Supply
URI >> Uniform Resource Identification (
URL >> Uniform Resource Locator (The address a computer looks for to find w3 pages)
URN >> Uniform Resource Name (
URT >> Universal Receiver Transmitter
USB >> Universal Serial Bus (another bus architecture-reference SCSI - allows hot swaps of devices, and runs on low power (bus voltage) but slow data transfer compared to the SSA and FC-AL ports)
USART >> Universal Synchronous / Asynchronous Receiver / Transmitter
USR >> United States Robotics (merged with 3 Com)
USRT >> Universal Synchronous Receiver Transmitter
UTP >> Unshielded Twisted Pair
VAN >> Value Added Network
VAR >> Value Added Reseller
VB >> Visual Basic
VBA >> Visual Basic for Applications (programming language bundled with MS Office, can include ActiveX- , not a full VB compiler, but can edit macros and commands)
VBP >> Visual Basic Project (file extension)
VBR >> Variable Bit Rate
VBRUN >> Visual Basic RUNtime library files (100, 200, 300, 400, 32) *.dll extensions
.vbs >> Visual Basic Scripting language. Used by Microsoft in the same way that Netscape developed the javascript language.
VCB >> Video Capture Board
VCD >> Video Compact Disk - use a CD in your DVD player for movies.
VCM >> Virtual Channel Memory (new bus technology between RAM and CPU - late 1998)
VDD >> Virtual Device Driver
VDM >> Virtual DOS Machine
VDT >> Visual Display Terminal
VEGA >> Video-7 Enhanced Graphics Adaptor
VESA >> Video Electronics Standards Association
VFAT >> Virtual File Allocation Table
VGA >> Video Graphics Adapter
VINES >> VIrtual NEtworking Software (Banyan NOS)
VIP >> Vines Internet Protocol
VLAN >> Virtual Local Area Network (term growing in popularity due to NT's domain structure)
VLB >> Video Local Bus (mother board bus architecture - becoming outdated for the PCI)
VM >> 1. Virtual Memory
VM >> 2. Virtual Machine
VMM >> Virtual Memory Manager
VMS >> Virtual Machine System
VMS >> Virtual Memory System (DEC OS)
VMS >> Voice Messaging System
VOD >> Voice Over Data
VOF >> Voice Over Fiber
VOIP >> Voice Over Internet Protocol
VPN >> Virtual Private Network
VR >> 1. Virtual Reality
VR >> 2. Voice Recognition
VRAM >> Video Random Access Memory
VRML >> Virtual Reality Modeling Language
VSN >> Volume Serial Number (S/N assigned when disk/partition is formatted)
VSQL >> Visual Structured Query Language
VTAM >> Virtual Transmission Automated Messaging
.vue >> Vue d'Esprit file extension. (Popular 3D rendering program)
VXB >> Visual Basic Library file extension
VxD >> Virtual eXtended Device Driver (common with the 32-bit Win 95 system) These are 32 bit protected mode drivers that allow mult-threading of applications.

W3 >> Sometimes shorted from the WWW or World Wide Web
W3C >> World Wide Web Consortium
WABI >> Windows Application Binary Interface
WAIS >> Wide Area Information System
WAN >> Wide Area Network
WARM >> Write And Read Many times (CD-ROM technology)
WAITS >> Wide Area Information Transportation System
.wav or WAV >> WAVe file (file extension for sound files)
.wax >> Sound file extension.
WBC >> Write Back Caching (newer 486 CPU, and Pentium - faster cache)
WBEM >> Web-Based Enterprise Management.
.wbk >> Workbook file extension used by several software packages.
.wbk >> Microsoft Word backup file extension.
WCL >> Windows Compatibility List
WDL >> Windows Driver Library
WDM >> Windows Device Manager
WEP >> Windows Entertainment Package
WFM >> Wired For Management (Intel hard-wire technology)
WFW >> Windows For Workgroups (often used for peer-to-peer networking)
WINE >> WINdows Emulator (program used by Unix/Linux to run Windows programs)
WINS >> Windows Internet Naming System (NT protocols - also used with other 32-bit MS)
.wiz >> Microsoft Wizard used in various software packages and the MS Windows OS.
.wma or WMA >> Microsoft Windows Media Audio file format and file extension.
.wmf >> Window Media and Fax viewer file extension.
WMF >> Windows MetaFile (file extension)
WORM >> 1. A type of virus (usually internet or networking)
WORM >> 2. Write Once Read Many (a type of disk drive ex: cd burners)
WP >> 1. Word Processor
WP >> 2. Word Perfect Corporation
WP >> 3. Write Pre compensation (older disk reading technology)
WP >> 4. Write Protected
WRAM >> Windows RAM
WTC >> Write Through Caching (chip set caching for older PC's)
WWW >> World Wide Web ( sometimes call W3)
WWW >> World Wide Wait - slang
WWWC >> World Wide Web Consortium (governing body that proposes standards for the Web)
WYSIWYG >> What You See Is What You Get (computer slang wizzy wig)
XCOPY >> eXtended COPY (DOS file copy program)
.xls >> Microsoft Excel file extension.
.xlt >> Microsoft Excel Template file extension
XML >> eXtensible Markup Language
XMS >> eXtended Memory Specification
XNS >> Xerox Network System
XP >> eXPerience (Microsofts new version of Windows and software)
XSMD >> eXtended Storage Module Drive interface
XT >> eXtended Technology
Z >> Compression files that save disk space (PKZip is most popular)
ZAC >> Zero Administration Client
ZAK >> Zero Administration Kit
ZAW >> Zero Administration for Windows
ZBR >> Zone Bit Recording
ZD >> Ziff Davis publication company (publish large percent of computer literature)
ZDN >> Ziff Davis Network: formally ZDNET, computer dedicated publisher, and internet site
ZDNET >> Ziff Davis Network (Largest computer publication company network)
ZDTV >> Ziff Davis TeleVision channel
ZIF >> Zero Insertion Force (CPU chips that can be removed to upgrade a PC)
.zip or ZIP >> Compression files that save disk space
ZNA >> Zero Network Administration (where all registration, profiles, policy kept in 1 place)
ZP >> Compression files that save disk space
Worth to bookmark Hooray!
Doctor Inferno
Hello vikas, welcome to GeekPolice! Cheesy Grin (sparkly

Here are another set of Computer Acronyms, but more common ones:

o.O thats a big list.
i'm quite surprised it didn't occupied the whole page Cheesy Grin (sparkly
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