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Which of the following can be treated as both input as well as output device?
1. Mouse
2. Printer
3. Memory
4. Plotter
5. Digital camera

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Correct Answer - Option 3 : Memory

Input devices are used to enter data or instructions into a computer.

e.g. Keyboard, Mouse, Digital camera, Scanner, Microphone etc.

The output device receives the information from the processing unit and provides the result in a human-readable form.

e.g. Printer, Monitor, speaker, plotter etc.

Memory holds the data and instructions that the Central Processing Unit (CPU) needs to complete the assigned task. Any transfer of information to or from the memory, for example by reading data from a disk drive, is considered I/O. (Input Output)

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