Which logic gate produces a HIGH output only if all of its inputs are HIGH?

The logic gate that produces a HIGH output only if all of its inputs are HIGH is the AND gate. This gate operates under the principle of conjunction, meaning it requires a complete agreement among all its inputs to yield a HIGH (or true) result.

For example, if an AND gate has two inputs and both are provided with a HIGH signal (1), the output is also HIGH (1). Conversely, if either input is LOW (0), the output will be LOW (0). This characteristic makes the AND gate foundational in digital circuits, particularly in situations where conditions must be strictly met for the desired result to be achieved.

In contrast, the OR gate would produce a HIGH output with any one or more of its inputs being HIGH, while the NAND gate would yield a LOW output only when all inputs are HIGH. The NOT gate, meanwhile, simply inverts the input: if given a HIGH input, it produces a LOW output, and vice versa. Thus, the unique property of the AND gate to require all inputs to be HIGH to produce a HIGH output is what clearly defines its function.