Which of the following statements is correct?

AA modem is a software

BA modem helps in stabilizing the voltage

CA modem is an operating system

DA modem converts analogue signals into digital and vice versa ✓ Correct

Correct answer: (D) A modem converts analogue signals into digital and vice versa

Explanation

A modem modulates outgoing digital data into analogue signals for the line and demodulates incoming analogue signals back into digital form.

A modem is hardware, so calling it a software is wrong.

Stabilizing voltage is the job of a stabilizer or UPS, not a modem.

An operating system manages a computer's resources and is unrelated to a modem's signal conversion.

The name modem itself is a blend of modulator and demodulator.

Dial-up modems worked over phone lines while modern ones handle cable, DSL and fibre links.

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