Multiple choice technology operating systems

Which one works as an output and input device

  1. Modem

  2. Scanner

  3. Mouse

  4. Printer
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A Correct answer
Explanation

A modem functions as both an input and output device because it sends data to other computers (output) and receives data from them (input) over communication lines. In contrast, a scanner is input-only (converts documents to digital), a mouse is input-only (sends cursor movements), and a printer is output-only (produces physical copies).

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