Question

which is the input and output device both ? ​

Answer 1

Answer:

For example, Dual devices include: Touch Screen Monitor, Modem, Network Interface Card, Sound card, Hard disk drive, Floppy disk Drive, Magnetic Tape Drive CD-Writer and DVD-Writer etc. These are also called Input/output devices, because they perform both functions. Touch Screen Monitor is an input/output device.

Explanation:

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Answer 2

Answer:

touch screen monitor, modem, etc.