Question

    To represent the unit of data, which of the following

    devices use ‘set of beads’? 
    A Abacus Correct Answer Incorrect Answer
    B MARK-I Correct Answer Incorrect Answer
    C ENIAC Correct Answer Incorrect Answer
    D EDVAC Correct Answer Incorrect Answer
    E None of these Correct Answer Incorrect Answer

    Solution

    The abacus (plural abaci or abacuses), also called a counting frame, is a calculating tool with a set of beads for counting.

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