The HEC-1 (Hollerith Electronic Computer)

Based on an initial design by Andrew Booth (of Birbeck College, London) and adapted by Dr Raymond Bird, the HEC-1 (Hollerith Electronic Computer) was the first computer to be built by the British Tabulating Machine Co Ltd. HEC-1 was a prototype for Britain’s first mass-produced commercial computer, designed to work with punched card equipment. The subsequent series of computers proved to be very successful.