Nature has given us ten fingers, and, of course, in order to count by tens. However, machines have been built with the help of the buttons, so it's only natural to do the turn on and turn off. It is like counting on the one hand, it's not just a single finger.
The Machines are the large numbers in the same way as we do: to count how many times they have run out of songs. This is called the options, the binary number is 10, it means that the machines will one day run out of songs. A person should call a number and two.
Today, these are the most important methods of counting. However, these are just two different ways of doing the same thing.