Basic full-form knowledge
CPU = Central Processing Unit RAM = Random Access Memory ROM = Read Only Memory PROM = Programmable Read Only Memory EPROM = Erasable PROM EEPROM = Electrically EPROM HDD = Hard Disk Drive FDD = Floppy Disk Drive KBD = KeyBoard I/0 = Input &Output CD = Compact Disk DVD = Digital Video Disk SMPS = Switch Mode Power Supply POST = Power ON Self Test VDU = Visible Display Unit LED = Light Embedded Diode LCD = Liquid Crystal Display USB = Universal Serial Bus VGA = Video/Visual Graphic Adapter LAN= Local Area Network WAN = Wide Area Network MAN = Metropolitan Area Network HLL = High Level Language LLL = Low Level Language MIPS = Million of Instruction Per Second Mbps = Mega Bytes Per second Kbps = Kilo Bytes per second HTTP = Hyper Text Templates WWW = World Wide Web IP = Internet Protocol ISP = Internet Service Provider 4 Bits = 1 Nibble 8 Bits = 1 Byte 1024 Bytes = 1 Kilo Byte ( KB) 1024 KB = 1 Mega Byte ( MB) 1024 MB = 1 Gyga Byte ( GB) 1024 GB = 1 Tera Byte ( TB) 1024 TB