The construction contract was signed on Jwork on the computer began in secret at the University of Pennsylvania's Moore School of Electrical Engineering the following month, under the code name "Project PX", with John Grist Brainerd as principal investigator. It was transferred to Aberdeen Proving Ground in Aberdeen, Maryland in 1947, where it was in continuous operation until 1955.ĮNIAC's design and construction was financed by the United States Army, Ordnance Corps, Research and Development Command, led by Major General Gladeon M. The combination of speed and programmability allowed for thousands more calculations for problems. It had a speed on the order of one thousand times faster than that of electro-mechanical machines this computational power, coupled with general-purpose programmability, excited scientists and industrialists alike. ĮNIAC was formally dedicated at the University of Pennsylvania on February 15, 1946, having cost $487,000 (equivalent to $6,190,000 in 2021), and called a "Giant Brain" by the press. ĮNIAC was completed in 1945 and first put to work for practical purposes on December 10, 1945. Īlthough ENIAC was designed and primarily used to calculate artillery firing tables for the United States Army's Ballistic Research Laboratory (which later became a part of the Army Research Laboratory), its first program was a study of the feasibility of the thermonuclear weapon. It was Turing-complete and able to solve "a large class of numerical problems" through reprogramming.
There were other computers that had combinations of these features, but the ENIAC had all of them in one computer. 1947–1955)ĮNIAC ( / ˈ ɛ n i æ k/ Electronic Numerical Integrator and Computer) was the first programmable, electronic, general-purpose digital computer, completed in 1945. Beck (background) and Betty Snyder (foreground) program ENIAC in BRL building 328. Four ENIAC panels and one of its three function tables at the School of Engineering and Applied Science at the University of Pennsylvania
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