What is a Logic Gate?

A logic gate is a basic digital circuit that takes one or more input signals and produces an output based on a rule. Common logic gates include AND, OR, NOT, NAND, NOR, XOR, and XNOR.

Why logic gates matter

Logic gates are the building blocks of digital electronics. They are used inside processors, memory, controllers, calculators, sensors, and communication circuits.

Logic gates and chips

A logic gate can be built from transistors, and many logic gates can be combined inside an integrated circuit. This is how small digital decisions become complex computing behavior.

A logic gate is simple by itself, but many gates together can do powerful work.