What were the earliest computers used for?

The earliest computers were used for scientific calculations. The evolution of computing tools has gone through different stages from simple to complex, from low-level to advanced; and the earliest computer was launched on February 14, 1946. The world's first electronic computer, the "Electronic Digital Integrator Computer" customized by the U.S. military.

The operating environment of this article: Windows 7 system, Dell G3 computer.

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The earliest computers were used for scientific calculations.

The evolution of calculation tools has gone through different stages from simple to complex, from low-level to advanced, such as from the knots in "knotting notes" to arithmetic chips, abacus slide rules, mechanical computers, etc. They played their respective historical roles in different historical periods, and also inspired the development ideas of modern electronic computers.

In 1889, American scientist Herman Hollery developed an electric tabulating machine based on electricity to store calculation data. In 1930, American scientist Vannevar Bush built the world's first analog electronic computer.

On February 14, 1946, the world's first electronic computer "Electronic Numerical And Calculator" (ENIAC Electronic Numerical And Calculator) customized by the U.S. military was launched at the University of Pennsylvania.

ENIAC (Chinese name: ENIAC) was developed by the Auberdine Weapons Proving Ground in the United States to meet the needs of ballistic calculations. This calculator uses 17,840 electron tubes and is 80 feet × 8 in size. ft., weighs 28t (tons), has a power consumption of 170kW, has a computing speed of 5,000 addition operations per second, and costs approximately US$487,000.

The advent of ENIAC has epoch-making significance, indicating the arrival of the electronic computer era. In the next 60 years or so, computer technology has developed at an alarming rate. The performance-price ratio of any technology can increase by 6 orders of magnitude in 30 years.

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