Question

What is the dual device or input/ output device

Answer 1

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.

Answer 2

The devices that can be used to perform both functions -input and output- are called Dual Devices. These devices are also called Dual Purpose Devices or Both Input/Output Devices. With the help of a dual-purpose device, we can enter data into computers as well as we can output data from the computer to outside world.

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