By the end of this section you will be able to recognise and draw three logic gates: AND, OR and NOT.

You should be able to combine them into complex logic circuits to solve problems involving Boolean operators and draw logic diagrams of them.

Finally, you will be able to use truth tables to investigate all of the possible input and output states of the Boolean operators, logic gates and logic circuits.

Using these techniques will allow you to create algorithms to solve complex problems. They also come in handy when you're trying to work out why a computer program doesn't work in the way you intended.