1.

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 ignoredThis question was posed to me during a job interview.This key question is from 4-Bit Parallel Adder/Subtractor in division Arithmetic Circuits of Digital Circuits

Answer»

Correct ANSWER is (c) A one will be added to the final result

Explanation: For a 4-bit parallel ADDER, if the carry-in is connected to a logical HIGH, one will be added to the final result as a result because carry-in GIVES output as 1.



Discussion

No Comment Found

Related InterviewSolutions