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

3rd Class Computers Science Sample Paper Computer Science Olympiad Model Test Paper-7

  • question_answer
    Lebnitz calculator was invented by Wilhelm Gottfried Leibniz which was made up of:

    A) Iron and steel    

    B) Copper and steel

    C) Vacuum tubes   

    D) Semiconductors

    E) None of these

    Correct Answer: B

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