1943 - The United States Army contracts with the University of Pennsylvania's Moore School to develop the ENIAC

(Wikipedia) - ENIAC, short for Electronic Numerical Integrator And Computer, was the first general-purpose electronic computer. It was the first high-speed, Turing-complete, digital computer capable of being reprogrammed to solve a full range of computing problems, though earlier machines had been built with some of these properties. ENIAC was designed and built to calculate artillery firing tables for the U.S. Army's Ballistic Research Laboratory.
The contract was signed on June 5, 1943 and Project PX was constructed by the University of Pennsylvania's Moore School of Electrical Engineering from July, 1943. It was unveiled on February 14, 1946 at Penn, having cost almost $500,000. ENIAC was shut down on November 9, 1946 for a refurbishment and a memory upgrade, and was transferred to 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. Continued