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1. COMPUTER P.P.T

2. CONTENTS
INTRODUCTION
TYPES OF INPUT DEVICES
TYPES OF OUTPUT DEVICES
USES OF INPUT DEVICES
USES OF OUTPUT DEVICES

3. INTRODUCTION
VARIOUS DEVICES USED TO ENTER INFORMATIONS
AND INSTRUCTIONS INTO A COMPUTER FOR
STORAGE OR PROCESSING AND DELIVER THE
PROCESSED DATA TO A HUMAN OPERATOR OR , IN
SOME CASES A MACHINE CONTROLLED BY THE
COMPUTER .

4. TYPES OF INPUT DEVICES
KEYBOARD
MOUSE
SCANNER

5. TYPES OF OUTPUT DEVICES
INKJET PRINTER
LASER PRINTER
SPEAKER

6. USES OF INPUT DEVICES
 KEYBOARD - IT IS AN INPUT DEVICE BY WHICH WE CAN
EASILY TRANSFER DATA INTO THE COMPUTER .
 MOUSE – IT IS A HAND-HELD INPUT DEVICE . A MOUSE
CONSISTS OF TWO OR THREE BUTTONS
 SCANNER – SCANNER CREATES AN ELECTRONIC COPY OF
A PHOTOGRAPH . PROCESS OF CREATING A PICTURE –
FILE FROM A PHOTOGRAPH IS CALLED AS SCANNING .

7. USES OF OUTPUT DEVICES
 INKJET PRINTER- PRINTER IS USED FOR DRAWING
PRINTOUTS . PRICE OF INKJET PRINTERS IS MODERATE
BUT OPERATING COST IS HIGH ; AND THE QUALITY OF
PICTURES IS GOOD .
 LASER PRINTER- IT IS ALSO USED FOR DRAWING
PRINTOUTS . THIS PRINTERS COME WITH VERY
IMPRESSIVE PRICE TAG , BUT OPERATING COST IS LEAST
.
 SPEAKER- IT IS AN COMPUTER PERIPHERAL WHICH GIVES
AUDIO OUTPUT .