Exam-style question
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Which of the following best describes the main difference between analogue and digital signals?.
- A.Analogue signals are continuous, while digital signals are discrete.
- B.Analogue signals can only represent two states, while digital signals can represent many.
- C.Analogue signals are always more accurate than digital signals.
- D.Digital signals are always faster than analogue signals.
Model answer
What a good answer should say
- Analogue signals are continuous, while digital signals are discrete.
Explanation
Why this works
The main difference between analogue and digital signals is that analogue signals are continuous, representing a range of values, while digital signals are discrete, representing specific values. This distinction is crucial in determining the appropriate application for each type of signal, especially in communication systems where fidelity and noise resistance are important.
Common mistake
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