A computer is a machine that processes data according to a series of instructions using the principles of electronics. The computer can be divided into two parts: software system and hardware system. The first general-purpose computer ENIAC was born on February 15, 1946.

People call a computer without any software as bare metal. With the development of science and technology, there are some new computers: biological computer, photon computer, quantum computer and so on. On May 24, 1954, the transistor electronic computer was born.

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