the west culture uses a decimal number system based on 10 digits, from 0 to 9 the contrary computers work with a binary number system based on 2 digits: 0 and 1. This happens for two reasons. Firstly, because computers are mainly a combination of electric circuits where just two values are possible: with or without current. Secondly, because the binary number system can represent any number of any number system, the decimal one included. The most striking difference is that the binary system requires more digits than the decimal system to represent the same number.