XNOR gate

An xnor gate is a little device that helps us make decisions. It has two inputs, and it will tell us if those two inputs are the same or different. Imagine you have two toys, a red one and a blue one. If you have two red toys or two blue toys, the xnor gate will tell you "yes", or "true", meaning they are the same. But if you have one red toy and one blue toy, the xnor gate will tell you "no", or "false", meaning they are different. It's like having a little helper that can check if something is the same or not.