Computer Science Ques 615
Question: PCM is an example of
Options:
A) Digit alto digital
B) Digital to analog
C) Analog to analog
D) Analogic digital
E) None of these
Show Answer
Answer:
Correct Answer: D
Solution:
- PCM (Pulse Code Modulation) is a sampling technique for digitizing analog signals, especially audio signals. The signals in PCM are binary, that is, there are only two possible states, represented by logic 1 (high) and low 0 (low). Using PCM, it is possible to digitize all forms of analog data, including full motion video, voices, music, telemetry and virtual reality.