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.

Join 30000+ teachers and students using TTIO.

Truth Tables and Logic Circuits

Source: Wikipedia Jack Kilby's original hybrid integrated circuit from 1958. This was the first integrated circuit, and was made from germanium.

We come into contact with computers, of varying kinds, every day. Yes, your phone is a computer too! If you were too look more closely at what was going on inside them, you'd invariably have to learn about logic circuits. Ultimately, a computer is built from millions of combinations of logic circuits. 

Have a look at this site and play around with creating your own.

Task and Challenge

Try creating a logic circuit that uses three gates: the OR, AND and NOT. Can you draw a truth table that predicts the output and then try it out using logic,ly/demo to see if your truth table predictions were correct!