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Mr. Dubey • 53.58K Points
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Q. The basic building blocks of the arithmetic unit in a digital computers are                          

(A) subtractors
(B) adders
(C) multiplexer
(D) comparator
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Explanation by: Mr. Dubey
 the basic building blocks of the arithmetic unit in a digital computers are adders. since, a parallel adder is constructed with a number of full- adder circuits connected in cascade. by controlling the data inputs to the parallel adder, it is possible to obtain different types of arithmetic operations.

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