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Computer, commonly known as computer, is a modern electronic computing machine used for high-speed calculation. It can perform numerical calculation, logical calculation, and storage and memory functions. It is a modern intelligent electronic device that can run according to the program and process massive data automatically and at a high speed. A bare metal computer consists of a hardware system and a software system, without any software installed. It can be divided into five categories: supercomputer, industrial control computer, network computer, personal computer and embedded computer. More advanced computers include biological computer, photon computer, quantum computer, etc.
Computer inventor John? Feng? Neumann. Computer is one of the most advanced scientific and technological inventions in the 20th century, which has had an extremely important impact on human production and social activities, and has developed rapidly with strong vitality. Its application field has expanded from the initial military scientific research application to various fields of society. It has formed a huge computer industry, which has driven technological progress around the world, thus triggering profound social changes. Computers have spread throughout general schools, enterprises and institutions, entered ordinary people's homes, and become an indispensable tool in the information society.