Which of the following statements concerning analog and digital devices are correct? A. The variables in digital systems are fixed quantities, and the variables in analog systems are continuous quantities. B. There are no basic differences between the two systems. C. Analog devices are superior in accuracy compared to digital devices. D. Operations in a digital device are performed simultaneously.

Which of the following statements concerning analog and digital devices are correct? A. The variables in digital systems are fixed quantities, and the variables in analog systems are continuous quantities. B. There are no basic differences between the two systems. C. Analog devices are superior in accuracy compared to digital devices. D. Operations in a digital device are performed simultaneously.
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Answer: A
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