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Digital Concepts

Q1: A full subtracter circuit requires ________.

A three inputs and two outputs

B two inputs and two outputs

C two inputs and three outputs

D three inputs and one output

ANS:D - three inputs and two outputs

For full subtractor, we need three input and it gives two output.

Input:a;b;cin(carry input).
Output:S(sum);Cout(carry output).



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