ENIAC

The first large-scale, general-purpose electronic digital computer, ENIAC (electronic numerical integrator and computer) was delivered to the U.S. Army's Ballistic Research Laboratory (BRL), Aberdeen Proving Ground, in 1947. Built by the University of Pennsylvania under an Army Ordnance Corps contract with technical supervision by BRL, ENIAC calculated artillery firing tables and performed computations on scientific problems until decommissioned in 1955.