Question

The Output is LOW if any one of the inputs is HIGH in case of a _________ gate.

(a) NOR

(b) NAND

(c) OR

(d) AND

I had been asked this question by my college professor while I was bunking the class.

I'd like to ask this question from Universal Gates topic in section Boolean Algebra and Logic Circuits of Computer Fundamentals

Answer 1

Right answer is (b) NAND

Easy explanation: In case of a NAND gate the output is LOW if any one of the inputs is HIGH (i.e. 1).

It gives a HIGH output only in one case when all the inputs given to it are LOW.