Important Computer Abbreviations for Competitive Exams

List of Computer Abbreviations: Computer Abbreviations is one of the most frequently asked topics in the Computer Awareness section in most of the Government Exams such as SSC RRB, Banks, etc. Here we have prepared the List of Important Computer Abbreviations
to help you to improve your general knowledge for competitive exams

List of Computer Abbreviations


Abbreviation Full-name
A/D Analog-to-Digital
ABC Atanasoff Berry Computer
ACM Association for Computing Machinery
AI Artificial Intelligence
ALGOL Algorithmic Language
ALU Arithmetic Logic Unit
AMD Advanced Micro Devices
ACE Advanced Computing Environment
ADB Apple Desktop Bus
AM Allied Master Computer
ARPANET Advanced Research Project Agency Network
ASCII American Standard Code for Information Interchange
BASIC Beginners All-purpose Symbolic Instruction Code
BCD Binary Coded Decimal
BIOS Basic Input Output System
BIPS Billions of Instructions Per Second
BPI Bytes Per Inch
BINAC Binary Automatic Computer
BOINC Berkeley Open Infrastructure for Network Computing
CA Computer Accountancy
CAD Computer Aided Design
CAE Computer Aided Engineering
CAN Campus Area Network
CAI Computer – Aided Instruction
CAM Computer – Aided Manufacturing
CAPTCHA Completely Automated Public Turing Test to tell Computers and Humans
CAT  Computer – Aided Translation
CAQ Computer – Aided Quality Assurance
CASE Computer Aided Software Engineering
CC Computer Cleaning
CDE Common Desktop Environment
CERT Computer Emergency Response Team
CG Computer Graphics
CGI Computer – Generated Imagery
CISC Complex Instruction Set Computer
CNC Computer Numerical Control
CRS Computer Reservations System
CS Computer Science
CSE Computer Science and Engineering
CT Computerized Tomography
CTI Computer Telephony Integration
CD Compact Disk
CDC Control Data Corporation
CD-R CD-Recordable
CD-ROM Compact Disk Read Only Memory
CD-RW CD Read/Write
CL Command Language
CLI Command Line Interface
COBOL Common Business Oriented
CODASYL Conference On Data Systems
CPU Central Processing Unit
CRT Cathode Ray Tube
D/A Digital-to-Analog
DAT Digital Audio Tape
DBMS Data Base Management System
DBS Demand Based Switching
DDL Data Definition Language
DDS Digital Data Storage
DEC Digital Equipment Corporation
DMA Direct Memory Access
DNA Digital Network Architecture
DPI Dots Per Inch
DRAM Dynamic RAM
DSN Distributed Systems Network
DTS Digital Theater System
DTP Desktop Publishing
DVD Digital Video/Versatile Disk
ECMA European Computer Manufacturers
EBCDIC Extended Binary Coded Decimal Interchange Code
EDSAC Electronic Delay Storage Automatic Calculator
EDVAC Electronic Discrete Variable Automatic Calculator
EFM Eight-to-Fourteen Modulation
ENIAC Electronic Numerical Integrator And Calculator
EPG Electronic Programming Guide
EPIC Explicitly Parallel Instruction Computing
EPROM Erasable Programmable Read-Only Memory
FAT File Allocation Table
FDM Frequency Division Multiplexing
FEP Front End Processor
FLOPS Floating Point Operations Per Second
FM Frequency Modulation
FMS File Management System
FOLDOC Free Online Dictionary of Computing
FSK Frequency Shift Keying
FTP File Transfer Protocol
GB Giga Bytes
GHz Giga Hertz
GNU Gnu Not Unix
GPRS General Packet Radio Service
GPGPU General-Purpose Computing on Graphics Processing Units
GSM Global System for Mobile communication
GUI Graphical User Interface
HP Hewlett Packard
HSS Hierarchical Storage System
HCI Human Computer Interaction
HPC High-Performance Computing
HTC High-Throughput Computing
HTML HyperText Markup Language
HTTP HyperText Transport Protocol
IBM International Business Machine
IC Integrated Circuit
IDN Integrated Digital Networks
IP Internet Protocol
IrDA Infrared Data Association
ISDN Integrated Services Digital Network
ISCSI Internet Small Computer System Interface
ISP Internet Service Provider
JDS Java Desktop System
JPEG Joint Photographic Experts Group
JRE Java Runtime Engine
JSP Java Server Pages
KB Kilo Bytes
KDE K Desktop Environment
KHz Kilo Hertz
LAN Local Area Network
LCD Liquid Crystal Display
LED Light Emitting Diode
LPM Line Per Minute
LSI Large Scael Integration
MAN Metropolitan Area Network
MAR Memory Address Register
MB Mega Bytes
MBR Memory Buffer Register
MCDST Microsoft Certified Desktop Support
MHz Mega Hertz
MIDI Musical Instrument Digital Interface
MIPS Millions of Instructions Per Second
MNP Microcom Network Protocol
MPEG Moving Pictures Experts Group
NCSA National Center for Supercomputing Applications
NGSCB Next – Generation Secure Computing Base
MS-DOS MicroSoft Disk Operating System
MVT Multiprogramming with Variable Tasks
NIC Network Interface Card
NICNET National Informatics Center NETwork
NOS Network Operating System
OCR Optical Character Recognition
OMR Optical Mark Reader
OS Operating System
OSI Open System Interconnection
OSS Open Source Software
PAN Personal Area Network
PC Personal Computer
PC DOS Personal Computer Disc Operating
PCMCIA Personal Computer Memory Card
PL/M Programming Language for Microcomputers
PDF Portable Document Format
PDL Program Design Language
PDP Program Data Processor
PIP Peripheral Interchange Program
PROM Programmable Read-Only Memory
QoS Quality of Service
RAM Random Access Memory
ROM Read Only Memory
RD Remote Desktop
RDC Remote Desktop Connection
RDP Remote Desktop Protocol
RISC Reduced Instruction Set Computer
RISC OS Reduced Instruction Set Computer
SLED SUSE Linux Enterprise Desktop
SCSI Small Computer System Interface
SDLC Software Development Life Cycle
SEQUEL Structured English QUEry Language
SGML Syntax for Generalized Markup Language
SIMM Single In-line Memory Module
SNA Systems Network Architecture
SNOBOL StriNg Oriented and symBOlic Language
SQL Structured Query Language
SSI Small Scale Integration
TB Tera Bytes
TCP Transport Control Protocol
TDM Time Division Multiplexing
UDP User Datagram Protocol
ULSI Ultra Large Scale Integration
UMPC Ultra – Mobile Personal Computer
UNIVAC Universal Automatic Computer (By MKS)
UVC Universal Virtual Computer
UPC Universal Product Code
URL Uniform Resource Locator
USB Universal Serial Bus 
UTF Unicode Transformation Format
VAN Value Added Network
VCR Video Cassette Recorder
VDT Video Display Terminal
VDI Virtual Desktop Infrastructure
VNC Virtual Network Computing
VGA Video Graphics Arra
VOD Video-On-Demand
VoIP Voice over Internet Protocol
VSAT Very Small Aperture Terminal
WAN Wide Area Network
WAP Wireless Application Protocol
WiMAX Worldwide Interoperability for Microwave Access
WLAN Wireless Local Area Network
WLL Wireless Local Loop
WORM Write Once Read Many
WWW World Wide Web
XHTML eXtensible HyperText Markup Language
XML eXtensible Markup Language
ZISC Zero Instruction Set Computer