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Q: Which one of the following statements is correct about a computer?
  • A. A computer is composed of only software
  • B. A computer can organize all information on its own
  • C. A computer is composed of only hardware
  • D. An electronic device that stores, retrieves and processes data
Correct Answer: Option D - A computer is a electronic machine that can store and process information. Most computers rely on a binary system that uses two variables, 0 and 1, to complete tasks such as storing data, calculating algorithms and displaying information. Modern computers can perform generic sets of operations known as programs.
D. A computer is a electronic machine that can store and process information. Most computers rely on a binary system that uses two variables, 0 and 1, to complete tasks such as storing data, calculating algorithms and displaying information. Modern computers can perform generic sets of operations known as programs.

Explanations:

A computer is a electronic machine that can store and process information. Most computers rely on a binary system that uses two variables, 0 and 1, to complete tasks such as storing data, calculating algorithms and displaying information. Modern computers can perform generic sets of operations known as programs.