Introduced March 1951 The immediate post-war years saw the first viable commercial and scientific computers hitting the market, such as the LEO I and Ferranti Mark 1 in the UK and the UNIVAC I in the United States. These huge, heavy, power hungry, expensive and slow computers are very primitive by today’s standards, but they found their niche in corporations and laboratories. UNIVAC I in use at the US Census Office Rather like the British LEO I, the UNIVAC I was a business computer made up…