XNOR Gate

An XNOR gate is a digital logic gate that outputs true (or "1") only when both of its inputs are the same—either both are true (1) or both are false (0). If the inputs are different, the output is false (0). Think of it as a "match" detector: it signals true when the inputs match and false when they differ. This function is useful in digital systems for checking equality or sameness between signals.