If you're seeing this message, it means we're having trouble loading external resources on our website.

If you're behind a web filter, please make sure that the domains *.kastatic.org and *.kasandbox.org are unblocked.

Main content

Unit 2: Computers

500 possible mastery points

About this unit

This unit provides an overview of how computers work. Learn about transistors, logic gates, logic circuits, the CPU, memory, and the file system.

Practice

Level up on the above skills and collect up to 240 Mastery points
Up next for you:

Unit test

Level up on all the skills in this unit and collect up to 500 Mastery points!