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

3rd Class Computers Science Sample Paper Computer Science Olympiad Model Test Paper-3

  • question_answer
    What is a light pen?

    A) Mechanical Input Device

    B) Optical Input Device

    C) Electronic Input Device

    D) Optical Output Device

    E) None of these

    Correct Answer: B

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