In the shown circuit, A and B enter an AND gate; its output and C enter a NAND. Find output Y first for A=B=C=0 and then for A=B=C=1.
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Question

In the shown circuit, A and B enter an AND gate; its output and C enter a NAND. Find output Y first for A=B=C=0 and then for A=B=C=1.

G1 Physics · Accepted Answer

AND stage X = A·B. NAND output Y = NOT(X·C) = NOT(A·B·C). For (0,0,0), product = 0 so Y=1. For (1,1,1), product = 1 so Y=0. Final answer: Option C (1, 0).