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How many shift registers are used in a 4 bit serial adder?(a) 4(b) 3(c) 2(d) 5I had been asked this question by my college director while I was bunking the class.I'd like to ask this question from Fast Adder & Serial Adder in section Arithmetic Circuits of Digital Circuits

Answer»

Correct ANSWER is (c) 2

The BEST explanation: There are two shift registers are used in a 4-BIT serial adder, which is used to store the numbers to be added serially. Serial ADDITION takes PLACE bit by bit.



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