Input:
Keyboard
Mouse
Joystick
Stylus
Microphone
Webcam
Scanner
Barcode scanner
Monitor
Speaker
Headphones
Printer
Plotter
Projector
Input / output:
Storage Units
CD
DVD
Modem
Fax
Memory cards
USB
Router
Touchscreen
It is important input and output for executing of the computer!! Also it's a good idea to know about the input and output that are the same time.
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