Multiple choice general knowledge math & puzzles

What is the function of a modem?

  1. To convert analog signals into digital and vice versa

  2. To convert mechanical energy to electric current

  3. To save the data

  4. None of these
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A Correct answer
Explanation

A modem (modulator-demodulator) converts digital signals from a computer into analog signals for transmission over telephone lines and vice versa. It does not generate electricity or serve as a primary data storage device.

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