How is it calculated?

Gossip contains the mysterious origin of binary mathematics, which may also create the traditional calculation of ancient mathematicians in China, and it also becomes the origin of folk vulgar divination and fortune-telling activities. At that time, mathematicians in the Western Zhou Dynasty had begun to perform four simple operations with computing chips. Since then, before the invention of abacus, calculation has become the basic calculation tool of China people. Because it is calculated with a bamboo stick, the word "calculation" is "bamboo".