1G - First Generation

2G - Second Generation

3G- Third Generation

4G -Fourth Generation

A/F - Audio Frequency

AM - Amplitude Modulation

ARPANET - Advanced Research Projects Agency NETwork

ASP - Active Server Pages

AUI - Attachment Unit Interface

BNC - Bayone Neill Concelman

Bps - Bytes Per Second

bps   - Bits Per Second

BHIM - Bharat Interface for Money

BWA - Broadband Wireless Access

CD - Carrier Detect,

CDMA - Code Division Multiple Access

CTS - Clear to Send

DECne - Digital’s family of communication protocols

DGM - Data Grade Medium

DHTML - Dynamic Hyper Text Markup Language t

DNS - Domain Name Server, Domain Name System

DSR - Data Set Ready,

DTR - Data Terminal Ready

EDGE - Enhanced Data rates for Global Evolution

Email - Electronic Mail

Fax - Fascimile

FM - Frequency Modulation

FTP - File Transfer Protocol

Gbps - Giga Bits Per Second

GBps - Giga Bytes Per Second

GHz - Giga Hertz

GSM - Global System for Mobile

GPRS - General Packet Radio Service

HDTV - High Definition Television

HLR - Home Location Register

HSPA - High Speed Packet Access

HSDPA - High Speed Downlink Packet Access

HSUPA - High Speed Uplink Packet Access

HTML - Hyper Text Markup Language

HTTP - Hyper Text Transfer Protocol

HTTPS - Hyper Text Transfer Protocol Secured

IDEN - Integrated Digital Enhanced Network

IE -Internet Explorer

IMAP - Internet Mail Transfer Protocol

IP - Internet Protocol, Intellectual Property

IPCP - IP Control Protocol

ISP - Internet Service Provider, Image Signal Processor

JSP - Java Server Pages

Kbps - Kilobits Per Second

KBps - Kilo Bytes Per Second

KHz - Kilo Hertz

LAN - Local Area Network

LCP - Link Control Protocol

LD - Laser Diode

LED - Light Emitting Diode

LTE - Long Term Evolution

MAN - Metropolitan Area Network

Mbps - Mega Bits Per Second

MBps - Mega Bytes Per Second

MHz - Mega Hertz

MIME - Multipurpose Internet Mail Extensions

Modem - Modulation(tor)/Demodulation(tor)

NCP - Network Control Protocol

NFS - Network File System

NIC - Network Interface Card

NIU - Network Interface Unit

NNTP - Network News Transfer Protocol

NPCI - National Payment Corporation of India

NSFnet - National Science Foundation Network

NTP - Network Time Protocol

OFC - Optic Fiber Cable, Fiber Optic Cable

PC - Personal Computer

PDA - Personal Digital Assistants

PM - Phase Modulation

POP3 - Post Office Protocol 3

P-P - Point to Point

P2P - Peer-to-Peer

PHP - Hypertext Preprocessor

PPP - Point to Point Protocol

PSTN - Public Switched Telephone Network

RJ45 - Registered Jack 45

RTS - Request to Send 

Rxd - Receive

SIM - Subscriber Identity Module

SIP - Session Initiation Protocol

SLIP - Serial Line Internet Protocol

SMS - Short Message Service

SMSC - Short Message Service Center

SMTP - Simple Mail Transfer Protocol

SNA - Systems Network Architecture

STP - Shielded Twisted Pair

TAP - Terminal Access Point (NIU = NIC = TAP)

TCP/IP - Transmission Control Protocol / Internet Protocol

TDM - Time Division Multiplexing

TDMA - Time Division Multiple Access

THz - Tera Hertz

Txd - Transmit

UMTS - Universal Mobile Telecommunications System / Universal Mobile Telephone System

UPI - Unified Payments Interface

URI - Uniform Resource Identifier

URL - Uniform Resource Location

URN - Uniform Resource Name

UTP - Unshielded Twisted Pair

VFIR - Very Fast Infrared

VGM - Voice Grade Medium

VOIP - Voice Over Internet Protocol

VSNL - Videsh Sanchar Nigam Limited

WAN - Wide Area Network

WCDMA - Wideband CDMA

WLL(WiLL) - Wireless in Local Loop

WiFi - Wireless Fidelity

WiMax - Worldwide Interoperability for Microwave Access

WWW - World Wide Web

XML - eXtensible Markup Language