A logic gate is an idealized or physical device implementing a Boolean function, that is, it performs a logical operation on one or more logical inputs, and produces a single logical output.
AND Gates: - The only time the output is positive is when all the inputs are positive. OR Gates: - The output will be positive when any one or all inputs are positive. XOR Gates: - The only time the output is positive is when the inputs are not the same NOT Gates: - The output is the opposite of the input. NAND Gates: - The output is positive provided all the inputs are not positive. NOR Gates: - The only time the output is positive is when all the inputs are negative.