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JAMB and WAEC Computer Studies questions

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

AllJAMBWAEC
All topicsAlgorithms and flowcharts · 39Application packages · 46Computer hardware and the CPU · 41Computer networks and the internet · 45Computer security, ethics and safety · 40Data processing and information · 40Evolution of computing · 42Input and output devices · 40Logic gates and Boolean algebra · 39Memory and storage devices · 44Number systems and data representation · 47Programming languages and BASIC · 43Software and operating systems · 42

  1. Question 401· Memory and storage devices· WAEC

    ROM contains

    Explanation and discussion

  2. Question 402· Memory and storage devices· WAEC

    Arrange these from fastest to slowest access: registers, cache, RAM, hard disk.

    Explanation and discussion

  3. Question 403· Memory and storage devices· WAEC

    A group of 8 bits is a

    Explanation and discussion

  4. Question 404· Memory and storage devices· JAMB

    Which storage device has no moving parts?

    Explanation and discussion

  5. Question 405· Memory and storage devices· WAEC

    The BIOS is usually stored in

    Explanation and discussion

  6. Question 406· Memory and storage devices· WAEC

    Memory that loses its contents when power is switched off is

    Explanation and discussion

  7. Question 407· Memory and storage devices· WAEC

    ROM stands for

    Explanation and discussion

  8. Question 408· Memory and storage devices· JAMB

    Which of these is a secondary storage device?

    Explanation and discussion

  9. Question 409· Memory and storage devices· WAEC

    A 4 MB file is copied 256 times onto a disk. How much space do the copies take? [1 GB = 1,024 MB]

    Explanation and discussion

  10. Question 410· Memory and storage devices· WAEC

    Cache memory is used to

    Explanation and discussion

  11. Question 411· Memory and storage devices· JAMB

    Which of these memories is the fastest?

    Explanation and discussion

  12. Question 412· Memory and storage devices· WAEC

    RAM is described as volatile because

    Explanation and discussion

  13. Question 413· Memory and storage devices· WAEC

    Optical discs such as DVDs are read using

    Explanation and discussion

  14. Question 414· Memory and storage devices· WAEC

    Cloud storage means

    Explanation and discussion

  15. Question 415· Memory and storage devices· WAEC

    1 kilobyte is equal to

    Explanation and discussion

  16. Question 416· Memory and storage devices· JAMB

    One kilobyte is equal to

    Explanation and discussion

  17. Question 417· Number systems and data representation· WAEC

    Convert 1111₂ to base ten.

    Explanation and discussion

  18. Question 418· Number systems and data representation· WAEC

    Add the binary numbers 1011 and 0110.

    Explanation and discussion

  19. Question 419· Number systems and data representation· JAMB

    The binary equivalent of the decimal number 13 is

    Explanation and discussion

  20. Question 420· Number systems and data representation· WAEC

    A nibble consists of

    Explanation and discussion

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