who was the computer built by?

Answer 1

Which computer?

1943 ENIAC (Electronic Numerical Integrator and Computer), the first general-purpose electronic digital calculator begins to be constructed. This computer by most is considered to be the first electronic computer.

Short for Electronic Numerical Integrator And Calculator, ENIAC began construction in 1943 and was completed in 1946 at the University of Pennsylvania and occupied about 1,800 square feet and used about 18,000 vacuum tubes, weighing almost 50 tons. While not completed until the end of the war, the ENIAC was created to help with the war efforts against German forces. To the right is a public-domain U.S. Army Photo of the EDVAC, from K. Kempf. and the History of Computing.

Peace!

Answer 2

ENIAC, short for Electronic Numerical Integrator and Computer[1], was the first large-scale, electronic, digital computer capable of being reprogrammed to solve a full range of computing problems[2], although earlier computers had been built with some of these properties. ENIAC was designed and built to calculate artillery firing tables for the U.S. Army's Ballistics Research Laboratory. The first problems run on the ENIAC however, were related to the design of the hydrogen bomb.

The contract was signed on June 5, 1943 and Project PX was constructed by Penn's Moore School of Electrical Engineering from July, 1943. It was unveiled on February 15, 1946 at the University of Pennsylvania, having cost almost $500,000. ENIAC was shut down on November 9, 1946 for a refurbishment and a memory upgrade, and was transferred to the Aberdeen Proving Ground, Maryland in 1947. There, on July 29 of that year, it was turned on and would be in continuous operation until 11:45 p.m. on October 2, 1955.

ENIAC was conceived and designed by John William Mauchly and J. Presper Eckert of the University of Pennsylvania. The patent for the ENIAC, granted in 1964, was voided by the 1973 decision of the landmark federal court case Honeywell v. Sperry Rand, putting the invention of the electronic digital computer in the public domain.