- An input device
is any peripheral (piece of computer hardware equipment) used to
provide data and control signals to an information processing system
(such as a computer).
- An output device
is any piece of computer hardware equipment used to communicate the
results of data processing carried out by an information processing
system (such as a computer) to the outside world.
Input devices: Scanner, CD drive, Mouse, microphone, keyboard.
Output devices: Printer, speakers, CD-DVD recording drive, Screen, headphones.
Input and output devices: RAM Card, network card, modem, motherboard.
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