 Development and manufacture transferred to GEC Computers new Dunstable factories in Woodside Estate, Dunstable in the late 1970s.In 1979, GEC Computers was awarded the Queen's Award for Technical Achievement for the development of the 4000 series, particularly Nucleus.By 1991, the number of systems manufactured was falling off, and manufacture was transferred to GPT's Beeston, Nottinghamshire factory, and development returned to Borehamwood.