computer in Cybor House, located in Tapton House Road, Sheffield. This was the first computer specifically dedicated to management cybernetics. References Official Company Handbook Various Issues of the internal works newspaper "Steel News" 1918 establishments in England 1967 disestablishments in England Coal companies of the United Kingdom Companies based in Scunthorpe Companies disestablished in 1967 Companies formerly listed on the London Stock Exchange Defunct companies based in Sheffield Defunct companies based in Yorkshire Rotherham Steel companies of the United Kingdom British companies established in 1918 Manufacturing companies established in 1918