PC Assembly

01.   Processor (CPU)

02.   Hard Drive

03.   Keyboard

04.   A webcam

05.   Sound Card

06.   Mouse

07.   An optical disc (OD)

08.   Bus AND The Expansion card

09.   Memory

10.   Video Card

11.   DRAM  AND Flash memory

12.   Monitor

13.   Ethernet

14.   image scanner

15.   INPUT.OUTPUT.BOTH

16.   Universal Serial Bus (USB)

17.   Computer speakers, or multimedia speakers,

18.   A joystick.

19.   A microphone

20.   A teleprinter (teletypewriter, Teletype or TTY)

21.   A graphics tablet