Understanding Universal Gates
A universal gate is a fundamental building block in digital electronics. It's a logic gate that allows any other logic gate (like AND, OR, NOT) and consequently any digital circuit to be constructed using only that type of gate.
There are two primary types of universal gates:
Identifying the Universal Gate
The question asks to identify a universal gate from the given options: AND, OR, NAND, and Inverter (NOT gate).
Therefore, the NAND gate is the correct answer.