What is a "computer"-Alice factory


In human history, the invention and creation of computing tools have come a long way. In primitive society, people used knots, stones or branches as tools for counting and calculating. In the Spring and Autumn Period and the Warring States Period, our country had a record of making calculations, and by the Tang Dynasty, there was already a calculation tool that is still in use today-the abacus. Logarithmic slide rules and mechanical computers appeared in Europe in the 16th century.

Before the 1950s, manual calculations had always been the main calculation method, and the abacus, logarithmic slide rule, hand-cranked or electric mechanical computer had always been the main calculation tool used by people. By the 1940s, due to the development of modern science and technology, on the one hand, the requirements for calculation amount, calculation accuracy, and calculation speed continued to increase. The original calculation tools could not meet the needs of applications. On the other hand, calculation theory and electronics And the development of automatic control technology also provided the possibility for the emergence of modern electronic computers. The first generation of electronic computers was born in the mid-1940s.

People often put forward different opinions on computers from different angles, and there are many descriptions: "Computer is a tool that can automatically process information"; "Computer is an electronic computer that can automatically complete information processing quickly and efficiently. "Equipment"; "A computer is an electronic device that can perform high-speed operations, have internal storage capabilities, and control its operating process by programs" and so on.

The birth of the first computer

In February 1946, the ENIAC (Electronic Numerical Integrator And Calculator) developed by the University of Pennsylvania, officially delivered to use, marked the birth of the first generation of electronic computers. It was developed to solve many complex calculations in the ballistic problem of new weapons. It uses electron tubes as the basic components of the computer. It consists of more than 18,000 electron tubes, more than 1,500 relays, more than 10,000 capacitors and more than 7,000 resistors. It covers an area of 170m2, weighs 30 tons, and consumes 300,000 kilowatts of electricity per hour. It is a giant , It can perform 5000 addition operations per second. Because it uses electronic devices to replace mechanical gears or electric machinery for calculations, and can continuously make judgments and make choices during the calculation process, it only took 2 hours to solve calculation problems that used to take more than 100 engineers a year to solve Can give the answer.

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We (Alice) are a 21-year professional metal sign customization enterprise. We have more than 100 employees, a 1500 square meter production base, and continue to introduce professional modern production equipment. In order to meet the needs of market competition and follow the economic trend, in recent years, we have continuously developed domestic and foreign e-commerce trade business, constantly making progress and innovating.

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