Constructing Expertise: Arthur Andersen, Diebold, and Canning-Sisson, 1953–1964

On February 14, 1946, nearly six months after the end of World War II, the US Department of War officially dedicated the Electronic Numerical Integrator and Computer (ENIAC) at the University of Pennsylvania. The machine, a 30-by-60-foot behemoth containing about 18,000 vacuum tubes, had been operating for three months.