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Digital Electronics - Engineering

Q1:

An AND gate has two inputs A and B and one inhibit input 3, Output is 1 if

A A = 1, B = 1, S = 1

B A = 1, B = 1, S = 0

C A = 1, B = 0, S = 1

D A = 1, B = 0, S = 0

ANS:B - A = 1, B = 1, S = 0

All AND inputs must be 1 and inhibit 0 for output to be 1.