Computer A to Z Full Froms

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A I B I C I D I E I F I G I H I I I J I K I L I M I N I O I P I Q I R I S I T I U I V I W I X I Y I Z I

A-Alphabet Full Forms

Short	Form Full Form
AAC	Advanced Audio Coding
ABC	Atanasoff–Berry Computer
ABI	Application Binary Interface
BR	Available Bit Rate
ABRS	Aadhar Based Remittance Service
ACID	Atomicity Consistency Isolation Durability
ACPI	Advanced Configuration and Power Interface
AD	Active Directory
ADC	Apple Display Connector
ADC	Analog-to-Digital Converter
ADSL	Asymmetric Digital Subscriber Line
AEPS	Aadhar Enabled Payment System
AFAIK	(as far as I know; email)
AGP	Accelerated Graphics Port
AHA	Accelerated Hub Architecture
AI	Artificial Intelligence
AIFF	Audio Interchange File Format
AIX	Advanced Interactive eXecutive
AJAX	Asynchronous JavaScript And XML
ALGOL	Algorithmic Language
ALI	Automatic Location Indicator
ALI	Acer Laboratories Incorporated
Alt	Alternate
ALU	Arithmetic Logical Unit
AM	Amplitude Modulation
AMD	Advanced Micro Devices
AMP	Accelerated Mobile Pages
AMR	Audio Modem Riser
AMR	Adaptive Multi-Rate
AMR-WB	Adaptive Multi-Rate Wideband
ANSI	American National Standards Institute
APC	Advanced Personal Computer
APCI	Application-Layer Protocol Control Information
API	Application Programming Interface
APIPA	Automatic Private Internet Protocol Addressing
APK	Android Application Package
APT	Automatically Programmed Tooling
APM	Application Performance Management
APM	Advanced Power Management
APR	Apache Portable Runtime
ARC	Adaptive Replacement Cache
ARP	Address Resolution Protocol
ARQ	Automatic Repeat Request

B-Alphabet Full Forms

Short	Form Full Form
B2B	Business to Business
B2C	Business to Customer
BAL	Basic Assembly Language
BASIC	Beginner’s All-Purpose Symbolic Instruction Code
BAT	Batch
BB	Brontobyte
BCC	Blind Carbon Copy
BCC	Block Check Character
BCD	Binary Coded Decimal
BCD	Boot Configuration Data
BCR	Business Card Reader
BCR	Bar Code Reader
BER	Bit Error Rate
BFD	Bidirectional Forwarding Detection
BFD	Binary File Descriptor
BGP	Border Gateway Protocol
BHIM	Bharat Interface for Money
BiDi	Bi-Directional
BIN	BINary
BINAC	Binary Automatic Computer
BIOS	Basic Input Output System
BIPS	Billion Instructions Per Second
Bit	Binary Digit
BLOB	Binary Large OBject
BLOG	Web Log
BMP	Bitmap
BMP	Basic Multilingual Plane
BNA	Bunch Note Acceptor
BNC	Bayonet-Neill-Concelman
BOM	Byte Order Mark
BPI	Bits Per Inch
BPL	Broadband over Power Lines
BPS	Bytes Per Second
bPS	bits Per Second
BRI	Basic Rate Interface
BSC	Binary Synchronous Communications
BSD	Berkeley Software Distribution
BT	Bluetooth
BT	Bit Torrent
BTU	British Thermal Unit
BTX	Balanced Technology eXtended
BW	Business Warehousing
BW	Bandwidth
BWF	Broadcast Wave Format

C-Alphabet Full Forms

Short Form	Full Form
C2C	Customer to Customer
CAD	Computer-Aided Drafting
CAE	Computer-Aided Engineering
CAI	Computer Assisted Instruction
CAL	Computer-Aided Learning
CAM	Computer Aided Manufacturing
CAN	Controller Area Network
CAPTCHA	Completely Automated Public Turing test to tell Computers and Humans Apart
CAQA	Computer-Aided Quality Assurance
CAS	Column Address Strobe
CAT	Computer-Aided Translation
CATIA	Computer Aided Three-Dimensional Interactive Application
CC	Carbon Copy
CCC	Course on Computer Concepts
CCD	Charged-Coupled Device
CD	Compact Disk
CD	Change Directory
CDFS	Compact Disc File System
CDMA	Code Division Multiple Access
CDR	Call Detail Record
CD-R	Compact Disk–Recordable
CD-RW	Compact Disc-ReWritable
CD-ROM	Compact Disc Read-Only Memory
CF	Compact Flash
CFM	Cubic Feet per Minute
CG	Computer graphics
CGA	Color Graphics Adapter
CGI	Computer Generated Imagery
CGI	Common Gateway Interface
CIFS	Common Internet File System
CIM	Computer Integrated manufacturing
CIM	Common Information Model
CISC	Complex Instruction Set Computing
CL	Combinatory Logic
CL	Command Line
CLI	Command Line Interface
CLR	Common Language Runtime
CMD	Command
CMOS	Complementary Metal Oxide Semiconductor
CNC	Computerized Numerical Control
CNR	Communications and Networking Riser
COBOL	Common Business Oriented Language
CODASYL	Conference On Data System Language
COM	Component Object Model
COM1	Communication Port 1
COMAL	Common Algorithmic Language
COMPUTER	Common Operating Machine Purposely Used for Technological and Educational Research
CPLD	Complex Programmable Logic Device
CPPM	Content Protection for Prerecorded Media
CPRM	Content Protection for Recordable Media
CPS	Character Per Second
CPU	Central Processing Unit
CR	Carriage Return
CRC	Cyclic Redundancy Check
CRIMM	Continuity-Rambus Inline Memory Module
CRM	Customer Relationship Management
CRS	Computer Reservation System
CRT	Cathode Ray Tube
CS	Clear Screen
CSCW	Computer Supported Cooperative Working
CSI	Computer Society of India
CSI	Common System Interface
CSMA	Carrier Sense Multiple Access
CSR	Certificate Signing Request
CSR	Command Success Rate
CSS	Cascading Style Sheets
CSV	Comma Separated Values
CTCP	Computer To Conventional Plate
CTCP	Client-To-Client Protocol
CTL	Computation Tree Logic
CTR	Cathode Ray Tube
CTR	Click-Through Rate
CTRL	Control
CTS	Cheque Truncation System
CTS	Clear To Send
CU	Control Unit
CUA	Common User Access
CUI	Character User Interface

D-Alphabet Full Forms

Short Form	Full Form
DAC	Digital-to-Analog Converter
DAC	Discretionary Access Control
DAO	Data Access Objects
DAP	Direct Access Protocol
DAT	Digital Audio Tape
DB	DataBase
dB	Decibel
DBA	DataBase Administrator
DBMS	DataBase Management System
DBS	Data Bus Simulator
DBSN	DataBase Source Name
DCC	Direct Cable Connection
DCC	Direct Client–to–Client
DCD	Data Carrier Detect
DCE	Data Circuit-terminating Equipment
DCE	Data Carrier Equipment
DCE	Distributed Computing Environment
DCL	Data Control Language
DCL	Digital Command Language
DCS	Distributed Control System
DD	Double Density
DDoS	Distributed Denial of Service
DDR	Double Data Rate
DDR-SDRAM	Double Data Rate Synchronous Dynamic Random-Access Memory
DDS	Digital Data Storage
DEC	Digital Equipment Corporation
DEL	Direct Exchange Line
DEL	Delete
DES	Data Encryption Standard
DFD	Data-Flow Diagram
DFS	Distributed File System
DFS	Depth-First Search
DHCP	Dynamic Host Configuration Protocol
DHTML	Dynamic HyperText Markup Language
DIF	Data Integrity Field
DIMM	Dual Inline Memory Module
DIN	Deutsche Industrie Norm
DIP	Dual Inline Package
DIVX	Digital Video eXpress
DL	DataLink
DL	Download
DLC	Data Link Controller
DLL	Dynamic-Link library
DLP	Digital Light Processing
DLT	Digital Linear Tape
DMA	Direct Memory Access
DMCA	Digital Millennium Copyright Act
DML	Data Manipulation Language
DNS	Domain Name System
DNS	Domain Name Server
DOC	Document
DOCX	Document eXtended
DOM	Document Object Model
DOS	Disk Operating System
DoS	Denial-of-Service
DOS-PMI	Disk Operating System–Protected Mode Interface
DPE	Dynamic Provisioning Environment
DPE	Data Parity Error
DPI	Dots Per Inch
DPI	Deep Packet Inspection
DPMS	Display Power Management Signaling
DRAM	Dynamic Random Access Memory
DS	Data Storage
DS	Data Structure
DS	Data System
DSL	Digital Subscriber Line
DSL	Domain–Specific Language
DSN	Data Source Name
DSP	Digital Signal Processing
DSR	Data Set Ready
DTA	Digital Telephone Adapter
DTC	Data Terminal Controller
DTE	Data Terminal Equipment
DTP	Desktop Publishing
DTR	Data Terminal Ready
DTS	Digital Theater Sound
DVD	Digital Versatile Disk
DVD-R	Digital Versatile Disc-Recordable
DVD-RW	Digital Versatile Disk-Rewritable
DVD-ROM	Digital Versatile Disk–Read Only Memory
DVD-RAM	Digital Versatile Disk-Random Access Memory
DVE	Digital Video Effects
DVI	Digital Visual Interface
DVR	Digital Video Recorder
DW	Data Warehouse

E-Alphabet Full Forms

Short Form	Full Form
EAI	Enterprise Application Integration
EAP	Extensible Authentication Protocol
EBCDIC	Extended Binary Coded Decimal Interchange Code
EC	Error Check
ECC	Error Correcting Code
ECOM	Electronic Commerce
ECP	Extended Capabilities Port
ECP	Enhanced Communication Port
ECS	Electronic Clearing Service
ECS	Elitegroup Computer Systems
ECU	Engine Control Unit
EDA	Electronic Design Automation
EDO	Extended Data Output
EDP	Electronic Data Processing
EDSAC	Electronic Delay Storage Automatic Calculator
EDVAC	Electronic Discrete Variable Automatic Computer
EEPROM	Electrically Erasable Programmable Read-Only Memory
EFS	Encrypting File System
EFT	Electronic Funds Transfer
EGA	Enhanced Graphics Adapter
EID	Electronic Identity Document
EID	Equipment Identifier
EIDE	Enhanced Integrated Drive Electronics
EIGRP	Enhanced Interior Gateway Routing Protocol
EISA	Extended Industry Standard Architecture
ELF	Executable and Linkable Format
EMAIL	Electronic Mail
EMI	Electromagnetic Interference
EMM	Expended Memory Manager
EMP	Electromagnetic Pulse
EMS	Element Management System
EMS	Expanded Memory Specification
ENIAC	Electronic Numerical Integrator And Computer
EOF	End Of File
EOL	End Of Line
EOM	End Of Messager
EOS	End Of Support
EPG	Electronic Programming Guide
EPIC	Explicitly Parallel Instruction Computing
EPP	Enhanced Parallel Port
EPROM	Erasable Programmable Read-Only Memory
ERD	Entity-Relationship Diagram
ERD	Emergency Repair Disk
ERP	Enterprise Resource Planning
ESB	Enterprise Service Bus
Esc	Escape
ESCD	Extended System Configuration Data
ESD	Electrostatic Discharge
ESDI	Enhanced Small Device Interface
EUC	End-User Computing
EUC	Extended Unix Code
EULA	End User License Agreement
EVDO	Evolution Data Only
EVDO	Evolution-Data Optimized
EVGA	Extended Video Graphics Array
EXE	Executable
EDS	Electronic Data System

F-Alphabet Full Forms

Short Form	Full Form
FAQ	Frequently Asked Questions
FAT	File Allocation Table
FAX	Facsimile
FCAL	Fibre Channel Arbitrated Loop
FC-PGA	Flip-Chip Pin Grid Array
FCS	Frame Check Sequence
FD	Floppy Disk
FDC	Floppy Disk Controller
FDD	Floppy Disk Drive / Final Draft Document
FDDI	Fiber Distributed Data Interface
FDM	Frequency Division Multiplexing
FDMA	Frequency Division Multiple Access
FDR	Flight Data Recorder
FDx	Full Duplex
FE	Front End
FEC	Forward Error Correction
FEP	Front End Processor
FF	Fast Forward / Form Feed
FHS	Filesystem Hierarchy Standard / File Handling System
FIFO	First In, First Out
FILO	First In, Last Out
FL	Function Level
FLAC	Free Lossless Audio Codec
FLOPS	Floating-point Operations Per Second
FLV	Flash Video
FM	Frequency Modulation
FMS	Fiber Management System / File Management System
Fn	Function
FORTRAN	FORmula TRANslation
FOSI	Formatted Output Specification Instance
FOSS	Free and Open Source Software
FPGA	Field-Programmable Gate Array
FPM	Fast Page Mode
FPS	Frames Per Second
FPU	Floating Point Unit
FQDN	Fully Qualified Domain Name
FRU	Field-Replaceable Unit
FS	File System / Frame Size / File Server
FSAA	Full-Screen Anti Aliasing
FSB	Front Side Bus
FSF	Free Software Foundation
FSK	Frequency-Shift Keying
FT	Fixed Terminals
FTP	File Transfer Protocol
FTPS	File Transfer Protocol Secure
FXP	File eXchange Protocol

G-Alphabet Full Forms

Short Form	Full Form
GIF	Graphical Interchange Format / Graphics Interchange Format
GB	Gigabyte
Gb	Gigabit
GBps	Gigabytes Per Second
Gbps	Gigabits per second
GCP	Google Cloud Platform
GCR	Group Code Recording
GDI	Graphics Device Interface
GIGO	Garbage In, Garbage Out
GIMP	GNU Image Manipulation Program
GIMPS	Great Internet Mersenne Prime Search
GIS	Geographical Information System
GP	Graphics Port / Game Play
GPIB	General-Purpose Instrumentation Bus
GPL	General Public License
GPRS	General Packet Radio Service / General Packet Radio System
GPS	Global Positioning System
GPU	Graphics Processing Unit
GSM	Global System For Mobile Communications
GTLDs	Generic Top Level Domains
GUI	Graphical User Interface
GUID	Globally Unique Identifier

H-Alphabet Full Forms

Short Form	Full Form
HAL	Hardware Abstraction Layer
HBA	Host Bus Adapter
HCI	Human-Computer Interaction
HCL	Hardware Compatibility List
HD	High Definition
HD DVD	High Definition Digital Versatile Disc
HDL	Hardware Description Language
HDD	Hard Disk Drive
HDFS	Hadoop Distributed File System
HDMI	High Definition Multimedia Interface
HDX	High-Density Expansion / Half-Duplex
HFS	Hierarchical File System
HPFS	High-Performance File System
HHD	Hybrid Hard Drive
HID	Human Interface Device
HIG	Human Interface Guideline
HIS	Human Instruction Set
HLL	High-Level Language
HMA	High Memory Area
HP	Hewlett-Packard
HSDPA	High-Speed Downlink Packet Access
HSF	Heat Sink and Fan
HT	Hyper-Threading / HyperTransport
HTC	High-Throughput Computing
HTM	Hierarchical Temporal Memory
HTML	HyperText Markup Language
HTTP	HyperText Transfer Protocol
HTTPD	HyperText Transfer Protocol Daemon
HTTPS	HyperText Transfer Protocol Secure
HTX	HyperTransport eXpansion
HURD	Hird of Unix-Replacing Daemons
HVD	Holographic Versatile Disk
Hz	Hertz

I-Alphabet Full Forms

Short Form	Full Form
IBG	Inter Block Gap
IBM	International Business Machines
IC	Integrated Circuit
I²C	Inter-Integrated Circuit
ICMP	Internet Control Message Protocol
ICP	Internet Cache Protocol
ICR	Intelligent Character Recognition
ICS	Internet Connection Sharing
ICT	Information and Communication Technology
IDE	Integrated Development Environment
IDE	Integrated Drive Electronics
IDL	Interface Definition Language
IE	Internet Explorer
IFS	Informatics and Security
IGMP	Internet Group Management Protocol
IGRP	Interior Gateway Routing Protocol
IHV	Independent Hardware Vendor
IIOP	Internet Inter-ORB Protocol
IIS	Internet Information Service
IM	Instant Messaging
IMAP	Internet Message Access Protocol
I/O	Input/Output
IOS	Internetwork Operating System
iOS	iPhone Operating System
IP	Internet Protocol
iPad OS	iPad Operating System
IPC	Inter-Process Communication
IPCONFIG	Internet Protocol Configuration
IPP	Internet Printing Protocol
IPsec	Internet Protocol Security
IPTV	Internet Protocol Television
IPX	Internetwork Packet eXchange
IR	Information Retrieval
IR	Infrared
IRC	Internet Relay Chat
IrDA	Infrared Data Association
IRPs	I/O Request Packet
IRQ	Interrupt Request
ISA	Industry Standard Architecture
ISA	Instruction Set Architecture
ISAM	Indexed Sequential Access Method
ISC	Internet Storm Center
ISDN	Integrated Service Digital Network
ISH	Information Super Highway
ISO	International Organisation for Standardization
ISOC	Internet Society
ISP	Internet Service Provider
ISR	Interrupt Service Routine
ISV	Independent Software Vendor
IT	Information Technology
ITL	Interval Temporal Logic
ITU	International Telecommunication Union
IVT	Intel Virtualization Technology
IVT	Interrupt Vector Table

J-Alphabet Full Forms

Short Form	Full Form
J2EE	Java 2 Platform Enterprise Edition
J2ME	Java 2 Platform Micro Edition
J2SE	Java 2 Platform Standard Edition
JAD	Java Application Descriptor
JAR	Java Archive
JAXB	Java Architecture for XML Binding
JBL	James Bullough Lansing
JCE	Java Cryptography Extension
JCL	Job Control Language
JDBC	Java Database Connectivity
JDK	Java Development KIT
JEE	Java Enterprise Edition
JFS	Journaled File System
JNI	Java Native Interface
JPEG	Joint Photographic Experts Group
JRE	Java Runtime Environment
JS	JavaScript
JSP	JavaServer Pages
JUG	Java Users Group
JSON	JavaScript Object Notation
JSP	Java Server Pages
JVM	Java Virtual Machine

K-Alphabet Full Forms

Short Form	Full Form
KB	Kilobyte
Kb	Kilobit
Kbps	Kilobits Per Second
KBps	Kilobyte Per Second
kHz	Kilohertz
KIPS	Knowledge Information Processing System
KM	Knowledge Machine
KRL	Knowledge Representation Language
KVA	Kilo-Volt-Ampere
KVM	Keyboard, Video, and Mouse

L-Alphabet Full Forms

Short Form	Full Form
LAN	Local Area Network
LCD	Liquid Crystal Display
LISP	List Processing
LAN	Local Area Network
LBA	Logical Block Addressing
LBA	Linear Block Array
LC	Lucent Connector
LC	Logic Channel
LDAP	Lightweight Directory Access Protocol
LDT	Lightning Data Transport
LDU	Loop Diagnostic Unit
LED	Light-Emitting Diode
LF	Line Feed
LG	Lucky Goldstar
LIF	Logical Interface
LIFO	Last In, First Out
Li-ion	Lithium-Ion
LIM	Logical Information Machine
LiPo	Lithium-ion Polymer
LIPS	Linear Inferences Per Second
LLC	Logical Link Control
LLL	Low-Level Language
LOGO	Language Of Graphics-Oriented
LPD	Laser Phosphor Display
LPD	Line Printer Daemon
LPM	Lines Per Minute
LPR	Line Printer Remote
LPT	Line Printer Terminal
LPX	Low Profile eXtension
LRU	Line Replaceable Unit
LSB	Least Significant Bit
LSD	Least Significant Digit
LSI	Large Scale Integration
LTE	Long-Term Evolution
LUN	Logical Unit Number
LVD	Low Voltage Differential

M-Alphabet Full Forms

Short Form	Full Form
MAN	Metropolitan Area Network
MKV	Matroska
MODEM	Modulator-Demodulator
MPEG	Moving Picture Experts Group
MPS	Multi-Processor System
MSDOS	Microsoft Disk operating System
M2G	Mobile 3D Graphics
MAC	Media Access Control
Mac	Macintosh
MAC OS	Macintosh Operating System
MAD	Michigan Algorithm Decoder
MANET	Mobile Ad-Hoc Network
MAP	Message Acceptance Pulse
MAP	Missed Approach Point
MAP	Modified Atmosphere Pack
MAP	Maintenance Automation Program
MAPI	Messaging Application Programming Interface
MAR	Memory Address Register
Mb	Megabit
MB	Megabyte
MB	MotherBoard
MBps	Megabyte Per Second
Mbps	Megabit Per Second
MBCS	Multi Byte Character Set
MBR	Master Boot Record
MBSA	Microsoft Baseline Security Analyzer
MCGA	Master of Computer Graphics and Animation
MCM	Multi-Chip Module
MCR	Multivariate Curve Resolution
MDI	Multiple Document Interface
MDI	Medium Dependent Interface
MFD	MultiFunction Device
MFLOPS	Million Floating-Point Operations Per Second
MFM	Modified Frequency Modulation
MFP	MultiFunction Product
MFT	Managed File Transfer
MFT	Multiprogramming with Fixed Task
MHz	Megahertz
MICR	Magnetic Ink Character Recognition
MicroDIMM	Micro Dual Inline Memory Module
MIDI	Musical Instrument Digital Interface
MIMD	Multiple Instruction, Multiple Data
MIME	Multipurpose Internet Mail Extensions
MIMO	Multiple-In, Multiple Output
MIPS	Million Instructions Per Second
MIPS	Microprocessor without Interlocked Pipelined Stages
MIS	Management Information Systems
MISD	Multiple Instruction, Single Data
MLI	Measurement Layer Interface
MLID	Multiple Link Interface Driver
MMC	Microsoft Management Console
MMC	MultiMediaCard
MMF	MultiMode Fiber
MMU	Memory Management Unit
MMX	MultiMedia eXtensions
MNG	Multiple-image Network Graphics
MNP	Microcom Networking Protocol
MNP	Mobile Number Portability
MOPS	Million Operations Per Second
MOSFET	Metal-Oxide-Semiconductor Field Effect Transistor
MP3	Moving Picture Experts Group Layer 3
MP	Multi-Processor
MPEG	Motion Pictures Experts Group
MPI	Message Passing Interface
MPL	Mozilla Public License
MPS	Megabits Per Second
MS	Memory Stick
MSB	Most Significant Bit
MSCDEX	Microsoft CD-ROM eXtensions
MSConfig	Microsoft Configuration
MSD	Most Significant Digit
MSDN	Microsoft Developer Network
MSDS	Material Safety Data Sheet
MS-DOS	Microsoft Disk Operating System
MSI	Micro-Star International
MSI	Medium Scale Integration
MSI	Microsoft Installer
MTBF	Mean Time Between Failure
MUI	Multilingual User Interface
MVS	Multiple Virtual Storage
MVS	Multiple Vendor System
MVT	Multiprogramming With Variable Tasks
MX	Mail eXchange

N-Alphabet Full Forms

Short Form	Full Form
NASSCOM	National Association of Software and Service Computer
NFS	Network File System
NIC	Network Interface Card
NPCI	National Payments Corporation of India
NPI	Network Provider Interface
NSF	National Science Foundation
NUUP	National Unified USSD Platform
NAP	Network Access Points
NAP	Network Access Protection
NAS	Network-Attached Storage
NAT	Network Address Translation
NetBIOS	Network Basic Input/Output System
NetBEUI	Networked BIOS Extended User Interface
NFC	Near Field Communication
NFS	Network File System
NFU	Not Frequently Used
NIC	Network Interface Controller
NIO	New Input/Output
NIU	Network Interface Unit
NLI	Natural Language Interface
NLI	Not Logged In
NLX	New Low Profile eXtended
NMI	Non-Maskable Interrupt
NNTP	Network News Transfer Protocol
NOP	NO Operation
NOS	Network Operating System
NSS	Name Service Switch
NT	New Technology
NTFS	New Technology File System
NTLDR	New Technology Loader
NTP	Network Time Protocol
NVRAM	Non-Volatile Random Access Memory
NWLINK	NetWare Link

O-Alphabet Full Forms

Short Form	Full Form
OCR	Optical Character Recognition
ODF	Open Document Format
OMR	Optical Mark Reader
OSF	Open Software Foundation
OSI	Open System Inter Connection
OC	Operation Channel
OC	Over Clock
OCR	Optical Character Recognition
OCR	Optical Character Reader
OCZ	Operational Control Zone
ODI	Open Data-link Interface
OEM	Original Equipment Manufacturer
OFP	Open Frame Panel
OLE	Object Linking and Embedding
OMR	Optical Mark Reader
OOM	Out Of Memory
OOP	Object-Oriented Programming
OPML	Outline Processor Markup Language
OS	Operating System
OSDN	Open Source Development Network
OSI	Open Systems Interconnection
OSK	On-Screen Keyboard
OSPF	Open Shortest Path First
OSR	OEM Service Release
OSS	Operations Support System
OSS	Open Source Software

P-Alphabet Full Forms

Short Form	Full Form
PAN	Personal Area Network / Permanent Account Number
PCB	Printed Circuit Board
PDF	Portable Document Format
PNG	Portable Network Graphics
POP3	Post Office Protocol Version-3
PPM	Page Per Minute / Pages Per Minute
PPP	Point to Point Protocol / Point-to-Point Protocol
PPT	PowerPoint Presentation
PROM	Programmable Read-Only Memory
PSTN	Public Switched Telephone Network
P2P	Peer-To-Peer
PAL	Programmable Array Logic / Phase Alternating Line
PATA	Parallel Advanced Technology Attachment
PAP	Password Authentication Protocol
PBX	Private Branch Exchange
PC	Personal Computer
PCB	Process Control Block
PC DOS	Personal Computer Disk Operating System
PCI	Peripheral Component Interconnect
PCIe	Peripheral Component Interconnect Express
PCL	Printer Command Language
PCM	Pulse-Code Modulation
PCMCIA	Personal Computer Memory Card International Association / Peripheral Component MicroChannel Interconnect Architecture
PDA	Personal Digital Assistant
PDL	Program Design Language
PDP	Program Data Processor
PE	Processor Element
PERL	Practical Extraction and Reporting Language
PFA	Portable Format for Analytics / Please Find the Attachment
PFF	Page Fault Frequency
PGA	Pin Grid Array / Professional Graphics Adapter
PGC	Professional Graphics Controller
PHP	Hypertext Preprocessor / Personal Home Page
PIC	Peripheral Interface Controller / Programmable Interface Controller / Programmable Intelligent Computer
PIM	Personal Information Manager
PINE	Program for Internet News and Email
PIO	Programmed Input/Output
PIP	Peripheral Interchange Program
PLA	Programmable Logic Array
PLC	Programmable Logic Controller / Power Line Communication
PLD	Programmable Logic Device
PLL	Phase-Locked Loop
PM	Private Message / Phase Modulation
PnP	Plug and Play
PoE	Power over Ethernet
POP	Post Office Protocol
POS	Point Of Sale
POST	Power-On Self Test
POTS	Plain Old Telephone Service
PPC	Power Personal Computer / Pay Per Click
PPI	Pixels Per Inch
PPPoA	Point-to-Point Protocol over ATM
PPPoE	Point-to-Point Protocol over Ethernet
PPTP	Point-to-Point Tunneling Protocol
PRI	Primary Rate Interface
PROLOG	Programming in Logic
PrtScr	Print Screen
PS/2	Personal System/2
PSD	Photoshop Document
PSP	Program Segment Prefix
PSU	Power Supply Unit
PTE	Page Table Entry
PVC	Permanent Virtual Circuit
PVM	Parallel Virtual Machine
PXE	Preboot eXecution Environment
PY	Python

Q-Alphabet Full Forms

Short Form	Full Form
QR Code	Quick Response Code
QA	Quality Assurance
QAM	Quadrature Amplitude Modulation
QAS	Quick Arbitrate and Select
QBE	Query By Example
QDR	Quad Data Rate
QFA	Quick File Access
QFP	Quad Flat Package
QIC	Quarter Inch Cartridge
QoS	Quality of Service

R-Alphabet Full Forms

Short Form	Full Form
RAM	Random Access Memory
RDS	Remote Desktop Service
ROM	Read Only Memory / Read-Only Memory
RPA	Robotic Process Automation
RAD	Rapid Application Development
RAID	Redundant Array of Inexpensive Disks / Redundant Array of Independent Disks
RAIT	Redundant Array of Inexpensive Tapes
RAMDAC	Random-Access Memory Digital-to-Analog Converter
RARP	Reverse Address Resolution Protocol
RAdAC	Risk Adaptive Access Control
RADIUS	Remote Authentication Dial-In User Service
RAS	Row Address Strobe / Remote Access Service
RBAC	Role-Based Access Control
RDBMS	Relation Database Management System
RDRAM	Rambus Dynamic Random Access Memory
RDF	Resource Description Framework
REEAL	Recursive functions Algorithmic Language
RF	Radio Frequency
RFI	Radio Frequency Interference
RGB	Red, Green, Blue
RGBA	Red, Green, Blue, Alpha
RIMM	Rambus Inline Memory Module
RI	Re-Installing
RIP	Routing Information Protocol
RIS	Remote Installation Service
RISC	Reduced Instruction Set Computer
RJ	Registered Jack
RMA	Returned Materials Authorization
RMW	Read-Modify-Write
ROMB	RAID On the MotherBoard
ROM-DOS	Read-Only Memory-Disk Operating System
RPC	Remote Procedure Calls
RPG	Report Program Generator
RPM	Revolutions Per Minute
RS-232	Recommended Standard 232
RTC	Real-Time Clock
RTOS	Real-Time Operating System
RTS	Real-Time Streaming / Real-Time Strategy / Request To Send

S-Alphabet Full Forms

Short Form	Full Form
SAARTHI	Synergized Advance Application Rail Travel Help and Information
SAN	Storage Area Network
SDRAM	Synchronous Dynamic RAM
SET	Secure Electronic Transactions
SQL	Structure Quivery Language
SRAM	Static Random Access Memory
SSL	Secure Socket Layer
STDM	Synchronous Times Division Multiplexing
SWIFT Code	Society for World Wide Interbank Financial Telecommunication Code
SAID	Serving Area Identity Document
SAM	Security Account Manager
SAM	Sequential Access Memory
SAN	Storage Area Network
SAP	Systems Applications and Products
SASI	Shugart Associates Systems Interface
SASID	Self Scanned Amorphous Silicon Integrated Display
SATA	Serial Advanced Technology Attachment
SAX	Simple API of XML
SBP-2	Serial Bus Protocol 2
SBU	Standard Build Unit
SC	StarCraft
SC	Subscription Channel
SCA	Service Component Architecture
SCA	Side-Channel Attack
SCSI	Small Computer System Interface
SD	Secure Digital
SDK	Software Development Kit
SDL	Specification and Description Language
SDL	Simple DirectMedia Layer
SDLC	Systems Development Life Cycle
SDLC	Synchronous Data Link Control
SDN	Software-Defined Networking
SDN	Service Delivery Network
SDR	Software-Defined Radio
SDRAM	Synchronous Dynamic Random Access Memory
SEC	Single Edge Contact
SECC	Single Edge Contact Cartridge
SEQUEL	Structured English QUEry Language
SFC	System File Checker
SFTP	Secure File Transfer Protocol
SFTP	Simple File Transfer Protocol
SGML	Standard Generalized Markup Language
SGRAM	Synchronous Graphics Random Access Memory
SHDSL	Single-pair High-speed Digital Subscriber Line
SIM	Subscriber Identity Module
SIMD	Single Instruction, Multiple Data
SIMM	Single Inline Memory Module
SIPP	Single In-line Pin Package
SIS	Server Intelligent Storage
SISD	Single-Instruction, Single-Data
SLI	Scalable Link Interface
SLI	System Level Integration
SLI	Scan-Line Interleave
SLIP	Serial Line Internet Protocol
SMB	Server Message Block
SMBIOS	System Management Basic Input/Output System
SMP	Symmetric Multiprocessing
SMS	Short Message Service
SMTP	Simple Mail Transfer Protocol
SNA	Systems Network Architecture
SNAP	Secure Network Access Platform
SNMP	Simple Network Management Protocol
SNOBOL	String Oriented and Symbolic Language
SNR	Signal-to-Noise Ratio
SOAP	Simple Object Access Protocol
SO-DIMM	Small Outline Dual Inline Memory Module
SOHO	Small Office or Home Office
SOIC	Small Outline Integrated Circuit
SP	Stack Page
SP	Service Pack
SPARC	Scalable Processor Architecture
SPI	Serial Peripheral Interface
S/PDIF	Sony/Philips Digital Interface
SPGA	Staggered Pin Grid Array
SPOOL	Simultaneous Peripheral Operations On-Line
SPU	Snippet Processing Unit
SPX	Sequenced Packet eXchange
SQL	Structured Query Language
SRAM	Static Random Access Memory
SSE	Streaming SIMD Extensions
SSH	Secure Shell
SSI	Small Scale Integration

T-Alphabet Full Forms

Short Form	Full Form
TCP/IP	Transmission Control Protocol/Internet Protocol
TFT	Thin Film Transistor
TPI	Track per Inch
TB	Terabyte
Tb	Terabit
TBps	Terabytes Per Second
Tbps	Terabits Per Second
TCP	Transmission Control Protocol
TDM	Time-Division Multiplexing
TDMA	Time Division Multiple Access
TDR	Time Domain Reflectometer
TEC	ThermoElectric Cooler
TFT	Thin Film Transistor
TFTP	Trivial File Transfer Protocol
TLD	Top Level Domain
TLS	Transport Layer Security
TMP	Temporary
TPI	Tracks Per Inch
TPU	Tensor Processing Unit
TS	Technical Specification
TS	Time Slot
TS	TypeScript
TSR	Terminate-and-Stay-Resident
TTA	Transport Triggered Architecture
TTA	True Tap Audio
TTF	True Type Font
TTS	Text-To-Speech
TTY	TeleTYpewriter
TWAIN	Technology Without An Interesting Name
TXT	Text

U-Alphabet Full Forms

Short Form	Full Form
UHD	Ultra High Definition
UMANG	Unified Mobile Application for New-age Governance
UNIVAC	Universal Automatic Computer
UPI	Unified Payments Interface
UPS	Uninterruptible Power Supply
URL	Uniform Resource Locator
USB	Universal Serial Bus
USSD	Unstructured Supplementary Service Data
UTR	Unique Transaction Reference Number
UTR	Unique Transaction Reference
UAC	User Account Control
UAE	Unrecoverable Application Error
UART	Universal Asynchronous Receiver-Transmitter
UDF	User-Defined Functions
UDF	Universal Disk Format
UDF	Universal Data Format
UDMA	Ultra Direct Memory Access
UDP	User Datagram Protocol
UDT	Unreliable Data Transfer
UEFI	Unified Extensible Firmware Interface
UHF	Ultra High Frequency
UI	User Interface
UL	Underwriter Laboratories
UL	UpLink
UL	Upload
ULSI	Ultra Large Scale Integration
UMB	Upper Memory Block
UMTS	Universal Mobile Telecommunications System
UNC	Universal Naming Convention
UNICS	UNiplexed Information Computing System
UNIVAC	Universal Automatic Computer
UPS	Uninterruptible Power Supply
URI	Uniform Resource Identifier
URL	Uniform Resource Locator
URN	Uniform Resource Name
USART	Universal Serial Asynchronous Receiver Transmitter
USB	Universal Serial Bus
USMT	User State Migration Tool
UTF	Unicode Transformation Format
UTP	Unshielded Twisted Pair
UUCP	Unix-to-Unix Copy
UVEPROM	Ultra-Violet Erasable Programmable Read-Only Memory
UVGA	Ultra Video Graphics Array
UWB	Ultra Wide Band
UXGA	Ultra Extended Graphics Array

V-Alphabet Full Forms

Short Form	Full Form
VB	Visual Basic
VBA	Visual Basic for Applications
VBE	VESA BIOS Extensions
VBS	Visual Basic Script
VCD	Video Compact Disc
VDI	Virtual Desktop Infrastructure
VDT	Video Display Terminal
VDU	Visual Display Unit
VESA	Video Electronics Standards Association
VFAT	Virtual File Allocation Table
VFS	Virtual File System
VGA	Video Graphics Array
VGCT	Video Graphics Character Table
VHF	Very High Frequency
VIRUS	Vital Information Resources Under Seize
VLAN	Virtual Local Area Network
VLC	VideoLAN Client
VLIW	Very Long Instruction Word
VLSI	Very Large Scale Integration
VM	Virtual Memory / Virtual Machine
VOD	Video On Demand
VoIP	Voice over Internet Protocol
VoLTE	Voice over Long Term Evolution
VPN	Virtual Private Network
VPU	Visual Processing Unit
VR	Virtual Reality
VRAM	Video Random Access Memory
VRT	Virus Removal Tool / Voltage Reduction Technology
VSAT	Very Small Aperture Terminal
VT	Video Terminal
VTOC	Volume Table Of Contents
VTR	Video Tape Recorder
VUE	Visual User Environment
VAR	Value-Added Reseller
Var	Variable
VAN	Value-Added Network

W-Alphabet Full Forms

Short Form	Full Form
WAN	Wide Area Network
WAP	Wireless Application Protocol
WATS	Wide Area Telephone Service
WAV	Waveform Audio
WB	Writeback
WBMP	Wireless BitMap Image
WCAG	Web Content Accessibility Guidelines
WD	Working Document / Western Digital
WEP	Wired Equivalent Privacy
WINDOWS	Wide Interactive Network Development for Office Work Solution
Wi-Fi	Wireless Fidelity
WiMAX	Worldwide Interoperability for Microwave Access
WinFS	Windows Future Storage
WINS	Windows Internet Name Service
WLAN	Wireless Local Area Network
WLL	Wireless Local Loop
WMA	Windows Media Audio
WMI	Windows Management Instrumentation
WMP	Windows Media Player
WMV	Windows Media Video
WNS	Windows Push Notification Service
WOL	Wake-On-LAN
WOM	Wake-On-Modem
WORA	Write Once, Run Anywhere
WORE	Write Once, Run Everywhere
WORM	Write Once, Read Many
WPA	Wi-Fi Protected Access
WPAD	Web Proxy Auto-Discovery
WPAN	Wireless Personal Area Network
WRAM	Windows Random Access Memory
WS	Web Site
WS-D	Web Services-Discovery
WSDL	Web Services Description Language
WTB	Want To Buy
WUSB	Wireless Universal Serial Bus
WUXGA	Wide Ultra eXtended Graphics Array
WWAN	Wireless Wide Area Network
WWDC	World Wide Developer Conference
WWID	World Wide Identifier
WWN	World Wide Name
WWW	World Wide Web
WYSIWYG	What You See Is What You Get
WZC	Wireless Zero Configuration

X-Alphabet Full Forms

Short Form	Full Form
XAML	eXtensible Application Markup Language
XGA	eXtended Graphics Array
XHTML	eXtensible HyperText Markup Language
XMF	eXtensible Music File
XML	eXtensible Markup Language
XMMS	X MultiMedia System
XMS	eXtended Memory Specification
XNS	Xerox Network Systems
XP	Cross-Platform
XPath	XML Path Language
XSL	eXtensible Stylesheet Language
XSL-FO	eXtensible Stylesheet Language Formatting Objects
XSLT	eXtensible Stylesheet Language Transformations
XSS	Cross-Site Scripting
XT	eXtended Technology
XTF	eXtensible Tag Framework
XUL	XML User Interface Language
XVGA	eXtended Video Graphics Adapter

Y-Alphabet Full Forms

Short Form	Full Form
YARN	Yet Another Resource Negotiator
YaST	Yet another Setup Tool
YB	Yottabyte

Z-Alphabet Full Forms

Short Form	Full Form
ZB	Zettabyte
ZCS	Zero Code Suppression
ZIF	Zero Insertion Force
ZIFS	Zero Insertion Force Socket
ZIP	Zone Information Protocol
ZIP	Zig-zag In-line Package
ZISC	Zero Instruction Set Computer
ZMA	Zone Multicast Address