AND; OR; XOR; NOT; NAND; NOR are which type of gate.

These are all examples of logic gates; fundamental building blocks of digital circuits. Logic gates process binary inputs (0s and 1s) to produce a specific output based on logical functions. For instance; AND outputs 1 only if all inputs are 1; while NOT inverts the input. Modern processors; memory devices; and controllers all rely on billions of such logic gates to perform operations.