Everyday we are facing these abbreviated word /words. Even we use it very frequently but most of us don't know its full form. Here I have listed some of them. Read It & Know It.
SIM : - Subscriber Identity Module.
3G : - 3rd Generation.
GSM : -  Global System for Mobile communication
CDMA : - Code Division Multiple Access.
UMTS: - Universal Mobile Telecommunication system.
GPRS : - General Packet Radio Service
HSDPA : - High Speed Downlink Packet Access
EDGE : - Enhanced Data Rate for GSM Evolution.
AVI : - Audio Video Interleave
RTS : - Real Time Streaming
SIS : - Symbian OS Installer File
AMR : - Adaptive Multi-Rate Codec
JAD : - Java Application Descriptor
JAR : - Java Archive
JAD : - Java Application Descriptor
3GPP :- 3rd Generation Partnership Project
3GP : - 3rd Generation Project
MP3 : - MPEG Player III
MP4 : - MPEG - 4 video File
AAC : - Advanced Audio Coding
GIF : - Graphic Interchangeable Format
JPEG : - Join Photographic Expert Group.
BMP : - Bitmap ( A File format for Image File)
SWF : - Shock Wave Flash
WMV : - Windows Media Audio
WMa : - Windows Media Audio
WAV : - Waveform Audio
PNG :- Portable Network Graphics
DOC : - Document Extension in Word File
PDF : - Portable Document Format
M3G :- Mobile 3D Graphics
M4A :- MPEG-4 Audio File
NTH - Nokia Theme (Series 40)
THM : - Themes (Sony Ericsson)
MMF : - Synthetic Music Mobile Application File
NRT : - Nokia Ringtone
XMF : - Extensible Music File
WBMP : - Wireless Bitmap Image
DVX : - DivX Video
HTML : - Hyper Tex Markup Language
WML : - Wireless Markup Language
CD : - Compact Disk.
CRT : - Cathode Ray Tube.
DAT : - Digital Audio Tape.
DOS : - Disk Operating System
GUI : - Graphical User Interface Protocol
IP : - Internet Protocol.
ISP : - Internet Service Provider
TCP : - Transmission control Protocol
UPS : - Uninterruptible Power Supply.
VHF : - Very High Frequency
UHF : - Ultra High Frequency
Virus : - Vital Information Resource Under seize.
WAP : - Wireless Application Protocol.
TCP : - Transmission control Protocol.
ARPANET : - Advanced Research Project Agency Network.
IBM : - International Business Machines.
HP : - Hewlett Packard.
AM / FM : - Amplitude / Frequency Modulation.
WLAN : - Wireless Local Area Network.