Types of Computers

Types of Computers

          On the basis of size and computation power, the computer is categorized into four types:

1.    Super Computers

Super Computers are the fastest computers. These computers are used in research and other operations where there is huge numerical calculation.

2.    Mainframe Computers

Mainframe Computers have many terminals. So they are used in big business organization where there are many departments and people.

3.    Mini Computers

Mini Computers are smaller than Mainframes but bigger than personal computers. They are useful for moderate organizations.

4.    Micro Computers

Micro Computers are also known as personal computers (PC). They are used for personal and office purposes.

          There are four basic functions performed by Computers:

a)   Input                   : - It is performed by Input devices such as Keyboard, Mouse, Microphone etc.

b)   Processing : - Central Processing Unit (CPU).

c)    Output       : - It is done by output devices such as Monitor, Printer, Speaker etc.

d)   Storage      : - It is performed by storage devices such as RAM, Hard Disks, Optical Disks etc.