Computer ki basic jankari hindi me

COMPUTER STANDS FOR

C stands for Common

O stands for Operated

M stands for Machine

P stands for Particularly

U stands for Used for

T stands for Technology

E stands for Education

R stands for Research

What is Computer?

Computer is an electronic device which takes data and instructions from user process it according to given instructions and give desired result.Computer is an electronic device which takes data and instructions from user process it according to given instructions and give desired result.

Uses of Computer

1.Home                                                6.Medical Stores

2.Schools                                              7.Research   

3. Air ports                                           8.Shopping Malls

4.Bus Stops                                           9. Companies 

5. Police Stations                                  10. Hospitals

Characteristics of computer

1.Speed

2.Deligence

3.Versatile

4.Accuracy

5.Storage

6.Reliability

Generation of computer

Parts of computer

Hardware – the part of computer which can be seen & we can touch it to feel is called hardware.

                                                                                   Input devices:-                                                 

1.Mouse

2.Keyboard

3.Scanner

4.Barcode Reader

5.Digital Camera

Output devices:-

1.Monitor

2.Printer

3.Plotter

4.Projector

5.Speaker

6.Headphones

                                                CPU(CENTRAL PROCESSING UNIT):-

It is also called brain of computer

Parts of CPU

1.ALU(Arithmetic & Logical Unit)- All the arithmetic and logical operations performed by this part
Arithmetical operation means : Addition (+),Subtraction(-),Multiplication(*),   Division(/)
Logical operation means statement based operations.

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2.CU(Control Unit)-This unit controls all the operations performed by CPU.

3.MU(Memory Unit)-This unit stores all the information from CPU.

                                                                                                                Memory Unit:-

Software-the part of computer which is actually used to run the computer but we can’t see and touch is called software.

uSystem software: the part of computer which is compulsory to run computer hardware.

     e.g.- all operating systems falls in this category.

uApplication software – all utility programs falls in this category.

     e.g.- MS-Office ,Browsers ,Games etc.