Digital Arithmetic Operations and Circuits - General Questions (10)

Directions to Solve

73.

For a 4-bit parallel adder, if the carry-in is connected to a logical HIGH, the result is:

A.	the same as if the carry-in is tied LOW since the least significant carry-in is ignored.
B.	that carry-out will always be HIGH.
C.	a one will be added to the final result.
D.	the carry-out is ignored.

Answer: Option C

Explanation:

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