Preview lessons, content and tests

Computer Science & Programming solved. All in one platform.

1. To trial the platform and take tests, please take a few seconds to SIGN UP and SET UP FREE.
2. Searching for something specific? See our text overview of all tests. Includes 'real teacher' use videos.

Logic Gates

The three main (beginner) gates you need to learn about are: AND, OR and the NOT gate. There are additional gates (advanced) that you will go on to discover like: NAND, XOR and NOR. Remember, a truth table basically describes the behaviour of a logic gate.

Advanced: Click to find out more about each of the below gates.


NAND symbol


XOR symbol


NOR symbol

Suggested Video

Reminder of the basic gates- you will need to memorise their names and associated shape.


AND symbol


OR symbol

NOT (Inverter)

NOT symbol

Go further: Additional Gates, NOR, NAND and XOR

Click the below link to read more about the additional gates as well as view truth tables for each.

Create your own: