Computer Component

RAM (Random Access Memory)

There's 2 type of RAM (Random Access Memory) :
1 ) Long Dimm (Desktop)
2 ) Sodimm (Laptop)

There's 4 type of speed n channel RAM :
1 ) SD RAM
2 ) DDR 1
3 ) DDR 2
4 ) DDR 3

Processor

There's 2 type of processor :
1 ) AMD *Reference "http://en.wikipedia.org/wiki/List_of_AMD_microprocessors"
2 ) Intel *Reference "http://en.wikipedia.org/wiki/List_of_Intel_microprocessors"

Motherboard / Mainboard

There's 2 type of motherboard / mainboard :
1 ) Intel *Depends on the processor socket
2 ) AMD *Depends on the processor socket

*Reference "http://en.wikipedia.org/wiki/CPU_socket"

Hard Disk

There's 2 type of hard disk :
1 ) IDE (PATA)
2 ) SATA (ATA)

Power Supply

There's many type of power supply *depends on voltage

Graphic Card

Graphic Card is to improve our computer graphic,mostly useful for those gamers and designer.

ROM (Read Only Memory)

There's 2 type of ROM (Read Only Memory) :
1 ) CD - ROM (Can read CD only)
2 ) CD - RW (Rewritable) (Can read n burn CD only)
3 ) DVD - ROM (Can read DVD and CD but cant burn)
4 ) DVD - ROM Combo (Can read DVD and CD,can burn CD but cant burn DVD)
5 ) DVD - RW (Rewritable) (Can read and burn CD and DVD)

Casing

Casing is for protect the component and easier to take care.

Monitor

There's 2 type of monitor :
1 ) CRT (Cathode Ray Tube)
2 ) LCD (Liquid Crystal Display)

Keyboard

There's 2 type of keyboard :
1 ) PS/2
2 ) USB (Universal Serial Bus)

Mouse

There's 2 type of mouse :
1 ) PS/2
2 ) USB (Universal Serial Bus)

Speaker

There's 2 type of speaker :
1 ) 2.1 (2 speaker and 1 woofer)
2 ) 5.1 (5 speaker and 1 woofer)

Printer

There's 2 type of printer :
1 ) Inkjet printer
2 ) Laser printer