Click the transistors to toggle them ON and OFF
Computers use binary — a number system with only two digits: 0 and 1. Each digit is called a bit. A group of 8 bits is called a byte, which can represent values from 0 to 255.
Each bit position has a value that is a power of 2. To find the decimal number, you simply add up the values of all the bits that are "ON" (set to 1).
A transistor is a tiny electronic switch inside your computer's processor. It can be either ON (representing 1) or OFF (representing 0). Modern CPUs contain billions of these switches working together.
Every number, letter, image, and video on your computer is stored as patterns of 0s and 1s — each one controlled by a physical transistor. When you click a transistor above, imagine you are flipping a real switch inside a CPU!