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Category : 1st Class

Main Parts of Computer

Introduction

Like we human beings have our body parts to do different task, a computer also has parts to perform different tasks.

There are four main parts of a computer. They are:

1. Monitor

2. Mouse

3. CPU

4. Keyboard

Monitor

v  A monitor looks like a TV Screen.

v  It displays pictures, text, movies etc on screen.

v  It is also called Visual Display Unit (VDU).

v  It displays information generated by computer.

Mouse

v  Mouse of a computer is a pointing device which looks like a real mouse.

v  It has .two click buttons and one scroll wheel.

v  The movement of the cursor on the screen depends on the direction of rolling the mouse on the mouse pad.

v  An arrow-like figure that appears .on the monitor is called a mouse pointer.

CPU

v  CPU stands for Central Processing Unit.

v  It is the main unit of a computer for processing data.

v   It is also known as brain of computer.

v  CPU controls all the activities of computer.

v  CPU contains power ON button, disk drives, powers slot and many connectors.

Keyboard

v  Keyboard is used for data input.

v  It looks like a typewriter.

v  It has many keys including, 26 Alphabet keys, 9 numeric keys, 12 function keys, arrow keys, special keys, and so on.

v  It is used to type alphabets, numbers and symbols.

Some Additional parts of a computer

Printer

A printer is used for printing text and pictures from a computer on to paper.

Scanner

A scanner scans or copies documents (text or pictures) and converts them into digital data.

Speaker

Speakers help us to hear sound that comes from a computer.

Things to Remember

• Monitor, Mouse, CPU and Keyboard are the four main parts of a computer.
• Monitor displays information generated by the computer.
• CPU is the brain of a computer.
• Mouse is a pointing device.
• Keyboard has keys which are used to type alphabets, numbers and symbols.
• Printer copies data from the computer on a paper.
• A scanner copies data from a paper into the computer.
• Speaker help us to hear sound generated in compute.

Answer Me

1. Write the names of the images.

 2.  Tick ( √ ) the correct answer.

A.   It is used to type numbers, alphabets and symbols.

B.   It is known as the brain of a computer.

C.   It is used to display output.

D.   It is a pointing device used to select things.

        E. In the picture of the keyboard below, colour the letters that are in your name.

 3. Match the following: