Question

Why do computers use binary code?

Answer 1

It has two clearly distinct states that provide a safety range for reliability and the least amount of necessary circuitry, which results in the least amount of space, energy consumption, and cost.

Answer 2

To make sense of complicated data, your computer has to encode it in binary. Binary is a base 2 number system. Base 2 means there are only two digits—1 and 0—which correspond to the on and off states your computer can understand