@electricalmath: The XOR logic gate, or exclusive OR gate, is very similar to the OR gate we saw in Part 3, in terms of the circuit symbol as well as operation. The XOR gate outputs a high signal if the inputs are different. The only difference between the XOR gate and the OR gate is that the XOR gate outputs a 0 if both inputs are 1. #electricalengineering #computerscience #computerengineering #physics #math