The world's first electronic computer was actually ABC (Atanasoff-Berry Computer, Atanasoff-Berry Computer) and ENIAC was the second. Previous information claimed that the first electronic computer was called ENIAC (Chinese name: ENIAC) (short for Electronic Numerical Integrator Computer, the full English name is Electronic Numerical Integrator And Computer), which was announced in the United States on February 15, 1946. . The "Moore Group" responsible for the development task consisted of four scientists and engineers Eckert, Moakley, Goldstein, and Box. Chief engineer Eckert was only 24 years old at the time.
The world’s first modern electronic computer, the ENIAC (LJC32), was born at the University of Pennsylvania on February 14, 1946, and was officially announced the next day. At the opening ceremony of Penn's Moore School of Electrical Engineering, this behemoth, which covers an area of ??170 square meters and weighs 30 tons, performed its "trick" for the guests - it performed 5,000 addition operations in one second. This was more than 1,000 times faster than the fastest relay computers at the time. This perfect appearance made the guests burst into applause.
ENIAC is 30.48 meters long and 1 meter wide. It covers an area of ??about 170 square meters and has 30 operating stations, which is about the size of 10 ordinary rooms. It weighs 30 tons and consumes 150 kilowatts of electricity. The cost is US$480,000. It contains 17,468 vacuum tubes, 7,200 crystal diodes, 1,500 relays, 70,000 resistors, 10,000 capacitors, 1,500 relays, more than 6,000 switches, and can perform 5,000 additions or 400 multiplications per second, which is 1,000 times that of a relay computer and 200,000 calculated by hand. times.