 Vickers left in 1982 to form "Rainbow Computing Co." with Richard Altwasser.The company became Jupiter Cantab and they were together responsible for the development of the commercially unsuccessful Jupiter ACE, a competitor to the similar Sinclair ZX Spectrum.Originally at the Department of Computing at Imperial College London, Vickers later joined the Department of Pure Mathematics at the Open University before moving to the School of Computer Science at the University of Birmingham, where he is currently a senior lecturer and the research student tutor of the School of Computer Science.