Of the following which is the preferred modulation scheme for digital communication?(a) Pulse code modulation(b) Pulse amplitude modulation(c) Pulse position modulation(d) Pulse width modulationI had been asked this question in a job interview.This key question is from Communication Systems topic in chapter Communication Systems of Physics – Class 12

Of the following which is the preferred modulation scheme for digital

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1.	Of the following which is the preferred modulation scheme for digital communication?(a) Pulse code modulation(b) Pulse amplitude modulation(c) Pulse position modulation(d) Pulse width modulationI had been asked this question in a job interview.This key question is from Communication Systems topic in chapter Communication Systems of Physics – Class 12
Answer» Right ANSWER is (a) Pulse code MODULATION The explanation is: Pulse code modulation is the one preferred for digital communication. Pulse codes are used to convert an ANALOG signal to a digital one. It is the standard form of digital audio in COMPUTERS, compact discs, etc.

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