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Basic Computer

Updated on October 12, 2011

Computer Expansion

Computer - Commonly Operated Machine Programmed Used For Technical Education Research.

Computer - An electronic device for storing and processing data, typically in binary form, according to instructions given to it in a variable program.

There are two basic parts of a computer:

Hardware & Software

Hardware :

The hardware are the parts of the computer itself incudingCentral Processing Unit(CPU),Keyboards,mouse,monitors etc. The other parts are called Pheripheral devices.

Central Processing Unit- The CPU is the brain of the computer.Two typical component of a CPU are Arithmetic Logic Unit(ALU) and Control Unit(CU).

Arithmetic and Logic Unit- ALU stands for Arithmetic Logic Unit. It perform arithmetic and logic operations.

Control Unit - CU stands for Control Unit. It extracts instructions from memory and decodes and executes calling on the ALU when necessary.

Keyboard - The Keyboard is used to type information into the computer or input information. The standard keyboard has 101 keys.Some special keys are referred to as a command keys. there are CTRL,ALT,SHIFT.

Mouse - It is a device that controls the movement of the cursor or pointer on a display screen.


Software is a collection of computer data and instructions. There are two major categories: System software and Application software.

System software - It is responsible for controlling, integrating and managing the individual hardware components of a computer system.

Application software - It is used to accomplish specific task .


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      SUper fantastic website keep it up!