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digital electronics digital arithmetic operations and circuits
1. For a 4-bit parallel adder, if the carry-in is connected to a logical HIGH, the result is:
(A): a one will be added to the final result.
(B): that carry-out will always be HIGH.
(C): the carry-out is ignored.
(D): the same as if the carry-in is tied LOW since the least significant carry-in is ignored.
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