Question

what are universal gates? why are they called so?​

Answer 1

Answer:

A universal gate is a gate which can implement any Boolean function without need to use any other gate type. The NAND and NOR gates are universal gates. In practice, this is advantageous since NAND and NOR gates are economical and easier to fabricate and are the basic gates used in all IC digital logic families.

NAND and NOR are called universal gates because all the other gates like and,or,not,xor and xnor can be derived from it. ... Nand actually means NOT of AND,so NAND is a combination of AND and NOT. A NAND gate can also be implemented using inverted OR inputs and that's why also called as bubbled OR gate.

HOPE IT HELPS.....

Answer 2

NAND and NOR gates are called universal gates because any gate can be constructed only with them.