2. Sample Papers
  3. 2nd Class
  4. Computers Science

2nd Class Computers Science Sample Paper Computer Science Olympiad Model Test Paper-5

  • question_answer
    Which device contains thumb wheel, trackball and a standard mouse ball?

    A) Mouse

    B) Joystick

    C) Keyboard

    D) Both (a)and (c)

    E) None of these

    Correct Answer: A

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