For example, in the decimal system, we use the symbols 0, 1, 2, 3, 4, 5, 6, 7, 8, and 9 to form numbers. Since there are 10 symbols, the system is called base 10. In the binary sytem, the symbols 0 and 1 are used to form numbers. There are 2 symbols in this system, which is a base 2 system.
