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Computer Fundamentals - Engineering

Q1:

Any device that performs signal conversion is

A Modulator

B Modem

C Keyboard

D Plotter

E None of the above

ANS:A - Modulator

In an electronics& telecommunications, modulation is the process varying one or more carrier signal, with modulating signal that typically contain information to be transmitted. A modem (from modulator- demodulator) can perform both operations. So answer is modulator.