Combined with the material 1, what is the significance of the successful application of abacus in promoting culture?

The successful application of abacus shows that the history and development of abacus in China is a great invention and success in human history. Although it is the computer age, abacus has irreplaceable cultural connotation, which can improve people's ability to use their hands and brains. Computers are only operated by people, and people who don't need to operate can understand the operation process. Some countries in the world learn from China's abacus and make innovations, but our own inventions are not. This idea is not normal. There is an old saying in China, "You know why, and you know why". The history of abacus calculation is about 1800 years. The reason why it can be handed down now naturally has its cultural background. We should continue to learn the knowledge of abacus and explore and expand the other side of abacus, such as hand calculation.