Star Computer Group Plc has acquired 51% of Summit Computers Ltd and Summit Computer Maintance Ltd, and reports that the two businesses have already joined the Pinnacle Computers and Convergent Solutions units at Star’s Venture Park in Watford, Hertfordshire. Summit specialises in two vertical markets, conference booking systems, which run under Unix on Convergent kit, and two information retrieval packages used in litigation support. Summit Maintenance specialises in third party support of Data General minicomputers. Star paid UKP160,000 up-front and will pay a maximum of UKP150,000 more over the next three years according to performance; the two businesses had turnover of UKP355,000 last year.