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WAEC Computer Studies questions: Computer hardware and the CPU

21 questions with answers and explanations. Tap an option to check yourself.

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All topicsAlgorithms and flowcharts · 21Application packages · 25Computer hardware and the CPU · 21Computer networks and the internet · 23Computer security, ethics and safety · 22Data processing and information · 22Evolution of computing · 23Input and output devices · 22Logic gates and Boolean algebra · 21Memory and storage devices · 23Number systems and data representation · 24Programming languages and BASIC · 22Software and operating systems · 22

  1. Question 1· Computer hardware and the CPU· WAEC

    Clock speed of a processor is measured in

    Explanation and discussion

  2. Question 2· Computer hardware and the CPU· WAEC

    The part of the CPU that performs calculations and comparisons is the

    Explanation and discussion

  3. Question 3· Computer hardware and the CPU· WAEC

    The register that holds the address of the next instruction to be fetched is the

    Explanation and discussion

  4. Question 4· Computer hardware and the CPU· WAEC

    The system unit houses

    Explanation and discussion

  5. Question 5· Computer hardware and the CPU· WAEC

    The component that converts AC mains to DC for the computer is the

    Explanation and discussion

  6. Question 6· Computer hardware and the CPU· WAEC

    Small, very fast storage locations inside the CPU that hold data being processed are

    Explanation and discussion

  7. Question 7· Computer hardware and the CPU· WAEC

    Hardware refers to

    Explanation and discussion

  8. Question 8· Computer hardware and the CPU· WAEC

    A processor rated at 3 GHz performs about

    Explanation and discussion

  9. Question 9· Computer hardware and the CPU· WAEC

    When a computer compares two numbers to decide which is larger, the work is done by the

    Explanation and discussion

  10. Question 10· Computer hardware and the CPU· WAEC

    A power supply unit converts

    Explanation and discussion

  11. Question 11· Computer hardware and the CPU· WAEC

    The main circuit board that connects all components of a computer is the

    Explanation and discussion

  12. Question 12· Computer hardware and the CPU· WAEC

    The control unit

    Explanation and discussion

  13. Question 13· Computer hardware and the CPU· WAEC

    The brain of the computer is the

    Explanation and discussion

  14. Question 14· Computer hardware and the CPU· WAEC

    During frequent power failures, a school computer lab should use

    Explanation and discussion

  15. Question 15· Computer hardware and the CPU· WAEC

    The data bus carries

    Explanation and discussion

  16. Question 16· Computer hardware and the CPU· WAEC

    The processing speed of a CPU is measured in

    Explanation and discussion

  17. Question 17· Computer hardware and the CPU· WAEC

    The repeated cycle by which the CPU processes each instruction is the

    Explanation and discussion

  18. Question 18· Computer hardware and the CPU· WAEC

    A UPS is used to

    Explanation and discussion

  19. Question 19· Computer hardware and the CPU· WAEC

    Registers are

    Explanation and discussion

  20. Question 20· Computer hardware and the CPU· WAEC

    Which of these is a peripheral device?

    Explanation and discussion

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