Answer:
Input: Keyboard, mouse, microphone
Output: monitor, loudspeakers
Input & Output: Network devices, Hard disks, USB drives, touch screen
Explanation:
Input devices are anything which provides information for a computer to act upon. The most common examples for a computer are the keyboard and mouse/trackball.
Output devices are anything which convey information which a computer has acted upon. The most common examples for a computer are the monitor and printer.
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