60. Any device that performs signal conversion is A.Modulator B.Modem C.Keyboard D.Plotter E.None of the above
Option A Solution: Modulator : In electronics and telecommunications, modulation is the process of varying one or more properties of a periodic waveform, called the carrier signal, with a modulating signal that typically contains information to be transmitted. ... A modem (from modulator–demodulator) can perform both operations.
