Question

 

Differentiate between analog and digital signals. What are the different types of modulation used in data communication?

09 Jan 2026
Answer :
Word Count : 566
Analog and digital signals are two fundamental types of signals used in data communication, each with distinct characteristics and applications. An analog signal is continuous in nature, meaning it can take any value within a given range. It represents information using continuously varying physical quantities such as voltage, current, or frequency. Examples of analog signals include human voice over a telephone line, audio from a microphone, or video from a camera. Analog signals are highly susceptible to noise and distortion because any small variation in the signal can affect the accuracy of the transmitted ________ ________ __________ ____ __________ ______.
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