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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 341· Logic gates and Boolean algebra· WAEC

    An OR gate gives an output of 0 only when

    Explanation and discussion

  2. Question 342· Logic gates and Boolean algebra· JAMB

    A truth table for a gate with 3 inputs has how many rows?

    Explanation and discussion

  3. Question 343· Logic gates and Boolean algebra· WAEC

    A NOR gate with both inputs 0 gives

    Explanation and discussion

  4. Question 344· Logic gates and Boolean algebra· WAEC

    A NOR gate with inputs A = 0 and B = 0 gives an output of

    Explanation and discussion

  5. Question 345· Logic gates and Boolean algebra· WAEC

    An XOR gate gives 1 when

    Explanation and discussion

  6. Question 346· Logic gates and Boolean algebra· WAEC

    Which Boolean expression represents an OR gate with inputs A and B?

    Explanation and discussion

  7. Question 347· Logic gates and Boolean algebra· WAEC

    An XOR gate gives an output of 1 when

    Explanation and discussion

  8. Question 348· Logic gates and Boolean algebra· WAEC

    For an AND gate with inputs A = 1 and B = 0, the output is

    Explanation and discussion

  9. Question 349· Logic gates and Boolean algebra· WAEC

    A truth table for a gate with two inputs has

    Explanation and discussion

  10. Question 350· Logic gates and Boolean algebra· WAEC

    An OR gate gives output 0 only when

    Explanation and discussion

  11. Question 351· Logic gates and Boolean algebra· JAMB

    An OR gate with inputs A = 0 and B = 1 gives an output of

    Explanation and discussion

  12. Question 352· Logic gates and Boolean algebra· JAMB

    A NOR gate gives output 1 only when

    Explanation and discussion

  13. Question 353· Logic gates and Boolean algebra· JAMB

    The gate whose output is 1 only when its two inputs are different is the

    Explanation and discussion

  15. Question 355· Logic gates and Boolean algebra· JAMB

    De Morgan's law states that NOT(A AND B) equals

    Explanation and discussion

  16. Question 356· Logic gates and Boolean algebra· WAEC

    An XOR gate gives output 1 when

    Explanation and discussion

  17. Question 357· Logic gates and Boolean algebra· JAMB

    The output of an OR gate with inputs 0 and 1 is

    Explanation and discussion

  18. Question 358· Logic gates and Boolean algebra· WAEC

    An AND gate gives an output of 1 only when

    Explanation and discussion

  19. Question 359· Logic gates and Boolean algebra· JAMB

    The Boolean expression for an AND gate with inputs A and B is

    Explanation and discussion

  20. Question 360· Logic gates and Boolean algebra· JAMB

    By De Morgan's law, NOT (A AND B) equals

    Explanation and discussion

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