The table above represents the Truth Table for the NAND (Not AND) logic gate. In digital electronics, a NAND gate is a logic gate which produces a high output (1) only when all inputs are low (0). It operates like an AND gate, followed by a NOT gate. The output of the NAND gate is the inverse of the AND gate. The NAND gate is widely used in digital circuits as it is a universal gate, meaning that any other logic gate can be realized using NAND gates only.