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3- The Components of Computer System

The Computer: is an electronic device for processing data.
It can store information, restore and process it.

The computer is used to send emails, play games, write documents and browse
on the internet.
Computer types differ from each other in type, model and shape.
The Computer Types:
1-Personal Computer (PC)
2-LapTop
3-Smart phones (iPhone and the tablet)

The Computer system components:

Inputs Outputs

Type of hardware Type of input data Type of hardware Type of output data
Visual information:
Keyboard Letter & Numbers Screen text, images and
videos
Mouse or Touch Text in Braille for
Directional Data Braille terminal
Screen blind people
Microphone Sound & Music Speaker Audio
convert texts to
Camera Images or Videos Speech synthesizer
speech
Text & Images from Text & images on
Scanner Printer
paper paper

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