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Which logic gate is represented by the following combination of logic gates? [add image]
A
OR
B
NAND
C
AND
D
NOR
Detailed Solution
$Y_1 = \bar A$, $Y_2 = \bar B$, $Y = \overline{\bar A + \bar B} = A\cdot B$
Truth table (A, B → Y): 0,0 → 0; 0,1 → 0; 1,0 → 0; 1,1 → 1
This is the truth table of an AND gate.
Truth table (A, B → Y): 0,0 → 0; 0,1 → 0; 1,0 → 0; 1,1 → 1
This is the truth table of an AND gate.