Logic Gate Simulator

This is an example of what I call a "One or the Other" logic gate simulator. It stands for when one switch is turned on and the other is turned off then it works, if they are both turned off then there is a zero for the output. Similarly when they are both turned on it doesnt work. XOR.
When you add the NOT gate it reverses the chart. For example when there are two zeros there is a one and when there are both ones there is a one. One one and one zero equal a zero.