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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