Consider following gates :

1. NAND

2. NOR

3. XOR

Out of these gates, the universal gates are

Question

Question

This question was previously asked in

UKPSC JE Electrical 2013 Official Paper I (Held on 7 Nov 2015)

Answer 1

A Universal Gate is a gate by which every other gate can be realized.

AND, OR, NOT, etc. are basic gates.

NAND, NOR, etc. are the universal gate.

Example:

NOT, AND and OR gate realization using NAND gate is as shown:

F1 S.B Madhu 18.03.20 D5