Binary numbers are numbers that use only two digits: 0 and 1. They are very useful for computers, because computers can only understand 0s and 1s. For example, the binary number 1010 means 1 × 2^3 + 0 × 2^2 + 1 × 2^1 + 0 × 2^0 = 8 + 0 + 2 + 0 = 10 in...
