8. Combining gates

We have discussed three types of logic gates - NOT, AND, OR. Combining them together allows incredibly complicated logic circuits to be made. For example, lets combine a NOT gate followed by an AND gate, like this

or maybe add some OR gates in there as well

Note that as more logic gates are added, the number of inputs can also increase which allows for more complicated logic. It is not uncommon for a logic circuit to have tens of thousands of gates combined.