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The first step required to convert analog signal to digital is :

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The first step required to convert analog signal to digital is :

(a) Sampling

(b) Holding

(c) Reconstruction

(d) Quantization

This question was posed to me in an internship interview.

This interesting question is from Signal Reconstruction topic in division Digital Control Systems of Control Systems

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Best answer
Correct choice is (a) Sampling

Best explanation: Sampling is the process in which the continuous systems are sampled by the application of the zero order hold and is the first step in the conversion of analog to digital signals.

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