July 29, 1947: ENIAC Computer Operated Electronic Started

ENIAC Computer

Alvienova | July 29, 1947: ENIAC Computer Operated Electronic Started | ENIAC, short for Electronic Numerical Integrator And Computer, was the first fully electronic computer designed to be Turing-complete, which can be reprogrammed by rearranging the cord in order to solve any kind of calculation problems.

He was preceded by the work of Konrad Zuse's Z3, which can be programmed with the tapes in full, but still mechanical and the Colossus computer that despite the British-made entirely electronically, but not for general purposes. The need to rearrange cables ENIAC was abolished in 1948.

ENIAC was developed and built by the U.S. Army Armament Research Laboratory for their table in order to calculate the gunfire. Thought and ideas about ENIAC was designed by J. Presper Eckert and John William Mauchly of the University of Pennsylvania. The computer was built on May 17, 1943 as Project PX and built at the Moore School of Electrical Engineering since mid-1944, and officially operated since February 1946 after swallowing a cost of $ 500,000. He then turned off on 9 November 1946 for a renewed and improved memory. ENIAC was shown to the public on February 14, 1946 at the University of Pennsylvania and moved to Aberdeen Proving Grounds, Maryland in 1947. On July 29 the same year, ENIAC was turned on and will continue to operate until 23:45 pm on October 2, 1955.

A team of eight women programmed the ENIAC by manipulating thousands of cables and switch.

ENIAC get extensive coverage because of their large size. He has 17 468 vacuum tubes, 7,200 crystal diodes, 1,500 transmitters, 70,000 resistors, capacitors 10.0000 and about 5 million hand-soldered connections. It weighs 27 tons and measure 2.4 mx 0.9 mx 30 m. ENIAC took an area of ​​about 167 m² and the energy consumption of 160 kW.

But ENIAC was not actually a sophisticated computer era. Unlike artificial Konrad Zuse's Z3, and artificial MARK Howard Aiken, ENIAC cord should be reset to run the new program (Z3 and Marki run the program from the tape). Furthermore, unlike the Z3 and other modern computers, ENIAC perform calculations in decimal rather than binary.

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