List of computing and IT abbreviations: Difference between revisions

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There are many abbreviations associated with the computer industry - PC, IT, CPU etc. Add them to this alphabetical listing.

A

AA - Anti-Aliasing
AABB - Axis Aligned Bounding Box
AAC - Advanced Audio Coding (audio compression format defined by the MPEG-2 standard)
ACID - Atomiticy Consistency Isolation Durability
ACM - Association for Computing Machinery
ACPI - Advanced Configuration and Power Interface
AES - Advanced Encryption Standard
APCI - Application-Layer Protocol Control Information
APIC - Advanced Programmable Interrupt Controller
ADC - Apple Display Connector (DVI variant)
ADO - ActiveX Data Object
ADSL - Asymmetric Digital Subscriber Line (variant of DSL)
AGP - Accelerated Graphics Port (sometimes used with a suffix indicating the port's bandwidth, like APG4x)
AI - Artificial Intelligence
AIM - AOL Instant Messenger
ALU - Arithmetic/Logic Unit
AMD - Advanced Micro Devices
AMI - American Megatrends ... (BIOS manufacturer)
AMR - Audio Modem Riser
ANSI - American National Standards Institute
AOL - America Online
AOP - Aspect-Oriented Programming
API - Application Programming Interface
ARP - Address Resolution Protocol
ARPA - Advanced Research Projects Agency (see also DARPA)
ARPANET - Advanced Research Projects Agency Network
ASCII - American Standard Code for Information Interchange
ASIC - Application Specific Integrated Circuit
ASP - Application Service Provider
ASP (MS ASP) - Active Server Pages
ATA - Advanced Technology Attachment
ATAPI - Advanced Technology Attachment Packet Interface
AT&T - American Telephone & Telegraph
AVI - Audio Video Interleaved
AWT - Abstract Windowing Toolkit

B

BASIC - Beginner's All-Purpose Symbolic Instruction Code (acronym was added later)
BBS - Bulletin Board System
BCD - Binary Coded Decimal
BER - Bit Error Rate
BINAC - B'i'nary Automatic Computer
BIND - Berkeley Internet Name Daemon
BIOS - Basic Input Output System
BJT - Bipolar Junction Transistor
BOOTP - B'o'o't'strap Potocol
BSA - Business Software Alliance
BSD - Berkeley Software Distribution (Unix variant)
BSOD - Blue Screen of Death (MS Windows specific)
BSS - Block Started by Symbol

C

CAD - Computer Aided Design
CAM - Computer Aided Manufacturing
CASE - Computer-Aided Software Engineering
CD - Compact Disc
CD-R - C'D'-Recordable
CD-ROM - C'D' Read-Only Memory
CD-RW - C'D'-Rewritable
CF - Compact Flash
CFG - Context-Free Grammar
CFG - Control Flow Graph
CG - Computer Graphics
CGA - Color Graphics Array
CGI - Common Gateway Interface
CGI - Computer-Generated Imagery
CISC - Complex Instruction Set Computer
CLI - Command Line Interface
CLR - Common Language Runtime
CM - Configuration Management
CMOS - Complementary Metal-Oxide Semiconductor
CMS - Content Management System
CNC - Computer Numerical Control
COBOL - C'o'mmon Business-Oriented Language
COM - Component Object Model
CORBA - Common Object Request Broker Architecture
CPAN - Comprehensive Perl Area Network
CPU - Central Processing Unit
CRC - Cyclic Redundancy Check
CRM - Customer Relationship Management
CRT - Cathode Ray Tube
CS - Computer Science
CSE - Computer Science Engineering
CSS - Cascading Style Sheets
CSS - Content Scrambling System
CT - Computerized Tomography
CTSS - Compatible Time-Sharing System
CVS - Concurrent Versioning System

D

DARPA - Defense Advanced Research Projects Agency
DAO - Data Access Objects
DAP - Directory Access Protocol
DAT - Digital Audio Tape
DB - Database
DBA - Database Administrator
DBMS - Database Management System
DCOM - Distributed Component Object Model
DD - Double Density
DDE - Dynamic Data Exchange
DDoS - Distributed Denial of Service
DDR - Double Data Rate
DEC - Digital Equipment Corporation
DES - Data Encryption Standard
DHCP - Dynamic Host Configuration Protocol
DHTML - Dynamic HTML
DIMM - Dual Inline Memory Module
DIVX - D'igital Video E'xpress
DLL - Dynamic Load Library
DLP - Digital Light Processing
DMA - Direct Memory Access
DMCA - Digital Millenium Copyright Act
DN - Distinguished Name
DND - Drag and Drop
DNS - Domain Name Server
DOM - Document Object Model
DoS - Denial of Service
DOS - Disk Operating System
DPI - Dots Per Inch
DRAM - Dynamic Random Access Memory
DRM - Digital Rights Management
DTP - Desktop Publishing
DVD - Digital Video Disc

E

EBCDIC - Extended Binary Coded Decimal Interchange Code
ECC - Elliptic Curve Cryptography
ECMA - European Computer Manufacturers Association
EDSAC - Electronic Delay Storage Automatic Computer
EDVAC - Electronic Discrete Variable Automatic Computer
EEPROM - Electronically Eraseable Programmable Read-Only Memory
EFF - Electronic Frontier Foundation
EGA - Enhanced Graphics Array
EIDE - Enhanced I'D'E
EISA - Extended Industry Standard Architecture
ELF - Extremely Low Frequency
ELM
ENIAC - Electronic Numerical Integrator And Computer
EOF - End of File
EOL - End of Life
EOL - End of Line
EPROM - Eraseable Programmable Read-Only Memory
ERP - Enterprise Resource Planning

F

FAP - FORTRAN Assembly Program
FAT - File Allocation Table
FAQ - Frequently Asked Questions
FDD - Floppy Disk Drive
FET - Field Effects Transistor
FIFO - First In First Out
FLAC - Free Lossless Audio Codec
FLOPS - F'l'oating-Point Operations Per Second
FPGA - Field Programmable Gate Array
FPU - Floating Point Unit
FS - File System
FSB - Front Side Bus
FSF - Free Software Foundation
FTP - File Transfer Protocol
FUD - Fear Uncertainty Doubt

G

GB - Gigabyte
GCC - GNU C Compiler
GDB - GNU Debugger
GFDL - GNU Free Documentation License
GIF - Graphics Interchange Format
GIGO - Garbage In Garbage Out
GIMP - GNU Image Manipulation Program
GIMPS - Great Internet Mersenne Prime Search
GNOME - G'N'U Object Model Environment
GNU - GNU's Not Unix
GPG - GNU Privacy Guard
GPL - GNU Public License
GRUB - G'r'and Unified Boot-Loader
GTK - GIMP Toolkit
GUI - Graphical User Interface

H

HAL - Hardware Abstraction Layer
HCI - Human Computer Interaction
HD - High Density
HDD - Hard Disk Drive
HF - High Frequency
HIG - Human Interface Guidelines
HIRD - Hurd of Interfaces Representing Depth
HP - Hewlett-Packard
HPFS - High Performance File System
HT - Hyper Threading
HTML - Hypertext Markup Language
HTTP - Hypertext Transport Protocol
HTTPd - Hypertext Transport Protocol Daemon
HURD - Hird of Unix-Replacing Daemons
Hz - Hertz

I

IBM - International Business Machines
IC - Integrated Circuit
ICMP - Internet Control Message Protocol
IDL - Interface Definition Language
IEEE - Institute of Electrical and Electronics Engineers
IETF - Internet Engineering Task Force
IGMP - Internet Group Management Protocol
IIOP - Internet Inter-Orb Protocol
IM - Instant Messaging
IMAP - Internet Message Access Protocol
IP - Intellectual Property
IP - Internet Protocol
IRC - Internet Relay Chat
IrDA - Infrared Data Association
IRQ - Interrupt Request
IS - Information Systems
ISA - Industry Standard Architechture
ISO - International Organization for Standardization
ISP - Internet Service Provider
ISPF - Interactive System Productivity Facility
IT - Information Technology

J

JAXP - Java API for XML Processing
JCL - Job Control Language
JDK - Jva Developer's Kit
JDS - Java Desktop System
JFC - Java Foundation Classes
JNI - Java Native Interface
JPEG - Joint Photographic Experts Group
JFET - Junction Field Effect Transistor
JFS - Journaling Filesystem
JIT - Just-In-Time
JRE - Java Runtime Environment
JS - JavaScript
JSP - Jackson Structured Programming
JSP - Java Server Page
JVM - Java Virtual Machine

K

KB - Kilobyte
KDE - K Desktop Environment
kHz - KiloHertz
KISS - Keep It Simple, Stupid

L

LAN - Local Area Network
LCD - Liquid Crystal Display
LDAP - Lightweight Directory Access Protocol
LED - Light Emitting Diode
LF - Low Frequency
LFS - Linux From Scratch
LIFO - Last In First Out
LILO - L'inux L'oader
LGPL - [GNU] Lesser General Public License
LOC - Lines of Code
LSB - Least Significant Bit
LSB - Linux Standard Base
LUG - Linux User's Group
LZW - Lempel-Ziv-Welch

M

MAC (address) - Media Access Control
MAN - Metropolitan Area Network
MB - Megabyte
MCSE - Microsoft Certified System Engineer
MAC - Media Access Control
ME - [Windows] Millenium Edition
MFC - Microsoft Foundation Classes
MHz - Megahertz
MIPS - Million Instructions Per Second
MIPS - Microprocessor without Interlocked Pipeline Stages
MIT - Massachusetts Institute of Technology
MIME - Multipurpose Internet Mail Extensions
MMU - Memory Management Unit
MMX - Multi-Media Extensions
MOSFET - Metal-Oxide Semiconductor F'E'T
MPAA - Motion Picture Association of America
MPEG - Motion Pictures (Coding) Experts Group
MPL - Mozilla Public License
MS - Microsoft
MSB - Most Significant Bit
MS-DOS - Microsoft D'O'S
MSDN - Microsoft Developer's Network
MUD - Multi-User Dungeon
MVS - Multiple Virtual Storage

N

NAT - Network Address Translation
NCSA - National Center for Supercomputing Applications
NDS - Novell Directory Services
NFS - Network Filesystem
NIST - National Institute of Standards and Technology
NP - Non-Polynomial
NPL - Netscape Public License
NPU - Numeric Processing Unit?
NMI - Non-Maskable Interrupt
NNTP - Network News Transfer Protocol
NT - New Technology
NTFS - N'T' Filesystem

O

OLE - Object Linking and Embedding
OLED - Organic Light Emitting Diode
OMG - Object Management Group
OO - Object Oriented
OO - Open Office
OOo - openoffice.org
OOP - Object Oriented Programming
ORB - Object Request Broker
OS - Operating System
OSI - Open Source Initiative
OSI - Open Systems Interconnect
OSS - Open Source Software
OSDN - Open Source Developer's Network

P

PAN - Personal Area Network
PARC - Palo Alto Research Center (Xerox PARC)
P-ATA - Parallel A'T'A
PCB - Printed Circuit Board
PC - Personal Computer
PCI - Peripheral Component Interconnect
PCMCIA - Personal Computer Memory Card International Association
PCM - Pulse Coded Modulation
PD - Public Domain
PDA - Personal Digital Assistant
PDF - Portable Document Format
PDP - Programmed Data Processor
PERL - Practical Extraction and Reporting Language
PGA - Programmable Gate Arrays
PGP - Pretty Good Privacy
PINE - PINE Is Not Elm
PIO - Programmed Input/Output
PL/I - Programming Language One
PL/M - Programming Language Microcomputer
PNG - Portable Network Graphics
POP - Point of Presence
POP3 - Post Office Protocol v3
POSIX - Portable Operating System Interface
PPC - P'owerP'C
PPI - Pixels Per Inch
PPP - Point to Point Protocol
PPPoE - P'P'P over Ethernet
PS - PostScript
PS/2 - Personal System/2
PVR - Personal Video Recorder
PXE - Pre Execution Environment
PXI

Q

QoS - Quality of Service
Qt - Quasar Toolkit

R

RAD - Rapid Applliction Development
RAID - Redundant Array of Inexpensive Disks
RAM - Random Access Memory
RARP - Reverse Address Resolution Protocol
RC - Release Candidate
RCS - Revision Control System
RDBMS - Relational Database Management System
RDF - Resource Description Framework
RF - Radio Frequency
RFC - Request For Comments
RFI - Radio Frequency Interference
RFID - R'adio Frequency I'dentification
RGB - Red, Green, Blue
RH - RedHat (Linux)
RHEL - RedHat Enterprise Linux
RIAA - Recording Industry Association of America
RIFF - Resource Interchange File Format
RIP - Routing Information Protocol - raster image processor
RISC - Reduced Instruction Set Computer
RLE - Run-Length Encoding
RMI - Remote Method Invocation
ROM - Read Only Memory
RPM - RedHat Package Manager
RSA - Rivest Shamir Adelman
RSS - RDF Site Summary
RSS - Really Simple Syndication
RSS - Rich Site Summary
RTOS - Real Time Operating System

S

SAN - Storage Area Network
SATA - Serial A'T'A
SAX - Simple API for XML
SCP - Secure Copy
SCSI - Small Computer System Interface
SDK - Software Developer's Kit
SDRAM - Synchronous Dynamic Random Access Memory
SEAL - Semantics-directed Environment Adaptation Language
SEI - Software Engineering Institute
SGI - Silicon Graphics, Incorporated
SGML - Standard Generalized Markup Language
SHA - Secure Hash Algorithm
SIMD - Single Instruction, Multiple Data
SIMM - Single Inline Memory Module
SMB - Server Message Block
SMC - S'M'C Networks (company)
S/MIME - Secure/Multipurpose Internet Mail Extensions
SMP - Symmetric Multi-Processing
SMS - Short Message Service
SMT - Simultaneous Multithreading
SMTP - Simple Mail Transfer Protocol
SNMP - Simple Network Management Protocol
SOAP - Simple Object Access Protocol
SP - Service Pack
SPARC - Scalable Processor Architecture
SQL - Structured Query Language
SRAM - Static Random Access Memory
SSH - S'ecure S'hell
SSI - Server Side Include
SSL - Secure Socket Layer
SUS - Single UNIX Specification
SVG - Scalable Vector Graphics
SVGA - Super Video Graphics Array
SWT - Stardard Widget Toolkit

T

TB - Terabyte
Tcl - Tool Command Language
TCP - Transmission Control Protocol
TCP/IP - Transmission Control Protocol/Internet Protocol
TFT - Thin Film Transistor
TI - Texas Instruments
TIFF - Tagged Image File Format
Tk -
TLA - Three-Letter Acronym (actually an initialism, not an acronym)
TLD - Top-Level Domain
TSO - Time Sharing Option
TSP - Traveling Salesman Problem
TTL - Transistor-Transistor Logic
TTL - Time To Live

U

UDDI - Universal Description, Discovery, and Integration
UDMA - Ultra D'M'A
UDP - User Datagram Protocol
UHF - Ultra High Frequency
UML - Unified Markup Language
UPS - Uninterruptible Power Supply
URI - Uniform Resource Identifier
URL - Uniform Resource Locator
URN - Uniform Resource Name
USB - Universal Serial Bus
UUCP - Unix to Unix Copy Protocol

V

VAX - Virtual Address eXtension
VRML - Virtual Reality Markup Language
VB - Visual Basic
VBA - Visual Basic for Applications
VBS - Visual Basic Script
VESA - Video Electronics Standards Association
VGA - Video Graphics Array
VHF - Very High Frequency
VLB - Vesa Local Bus
VLF - Very Low Frequency
VLSI - Very-Large-Scale Integration
VM - Virtual Machine
VTAM - Virtual Telecommunications Access Method

W

WAIS - Wide Area Information Servers
WAN - Wide Area Network
WAP - WiFi Access Point
WAP - Wireless Application Protocol
WAV - W'A'VEform audio format
WEP - Wired Equivalent Privacy
WOL - Wake on LAN
WMA - Windows Media Audio
WPA - Wi-Fi Protected Access
WSDL - Web Services Description Language
WWW - World Wide Web
WYSIWYG - What You See Is What You Get

X

XAML - eXtensible Application Markup Language
XFS
XHTML - eXtensible Hypertext Markup Language
XML - eXtensible Markup Language
XMMS - X Multimedia System
XP - Cross Platform (not Windows XP)
XPCOM - Cross Platform Component Object Model
XPI - Cross Platform Installer
XPIDL - Cross Platform IDL
XSL-T - eXtensible Stylesheet Language Transformations
XUL - XML-based User-interface Language

Y

YACC - Yet Another Compiler Compiler
YAML - YAML Ain't Markup Language
YAST - Yet Another Setup Tool

Z

ZIF - Zero Insertion Force
ZOPE - Z Object Publishing Environment

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	There are many abbreviations associated with the computer industry - PC, IT, CPU etc. Add them to this alphabetical listing.		There are many abbreviations associated with the computer industry - PC, IT, CPU etc. Add them to this alphabetical listing.