Introduction of Computer

 

INTRODUCTION OF COMPUTER

·       Definitionè

·       Computer is an electronic device, which is accepting data through the input device like mouse and keyboard. It processes to the given data through the cpu (central processing unit) and finally output display on the output device like monitor.

·       Actual computer founding date is 1837 by Charles Babbage.

·       Oldest computer hardware company is IBM (International Business Machine)

·       Main part of computerè

        1. Input deviceèa) mouse.

                            b) Keyboard

2. Output deviceèmonitor

3. Processing deviceèCPU (Central Processing Unit)

·       Basic Parts of computerè

                PrinterèOutput device

                ScannerèInput device

                Web cameraèInput device

                Head Phone and SpeakerèOutput device

·       Types of keysè

                5 Types of keys.

1.   Alphabetical keysè(A To Z)

2.   Numerical keysè(0 To 9)

3.   Alpha Numerical keysè !@#$^&*(

4.   Function keysèF1,F2,F3…,F12.

5.   Special keysèshift,enter,ctrl,etc…6

Computer input device

 

Computer Output device

 

 

 

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