This document discusses different types of computers and their components. It outlines analog computers, digital computers, super computers, mainframe computers, personal computers, laptops, tablets, PDAs and special purpose computers. It also describes the basic hardware components of a computer including the central processing unit, RAM, ROM, arithmetic logic unit, control unit and motherboard. Finally, it lists some common operating systems like DOS, Windows and Unix.

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o
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8. Analog
Computer
Digital
Computer
Super
Computer
Mainframe
Computer
Personal
Computer (PC)
Laptop
PC
Tablet
PDA
Special
Purpose
Computer
Multi
purposes
Computer

11. Hard Ware
Soft Ware
(Processing Unit)

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RAM
ROM

13. Arithmetic and Logic Unit
(Processing Unit)
Control Unit

17. Motherboard

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19. Dos
Windows
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Unix

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