What is NOT Gate or inverter?
NOT Gate works as Inverter. NOT Gate performs an inversion function. The Not Gate must have single input and output. NOT Gate is represented in the figure below;
| Input | Output |
| 0 | 1 |
| 1 | 0 |
What is Exclusive-NOR Gate?
XNOR Gate performs a function that is equivalent to the combination of OR, AND and NOT gates.
| Inputs | Output | |
| X | Y | Z |
| 0 | 0 | 1 |
| 0 | 1 | 0 |
| 1 | 0 | 0 |
| 1 | 1 | 1 |