Ferranti Mark 1

The Ferranti Mark 1, also known as the Manchester Electronic Computer in its sales literature, and thus sometimes called the Manchester Ferranti, was the world's first commercially available general-purpose electronic computer. It was "the tidied up and commercialised version of the Manchester computer". The first machine was delivered to the University of Manchester in February 1951, ahead of the UNIVAC I, which was turned over to the United States Census Bureau on 31 March 1951 (but not delivered until late December the following year).