Intergraph Corp, Huntsville, Alabama is to manufacture a high performance multiprocessor for transaction processing and database management that has been designed by Electronic Data Systems Corp, the companies announced yesterday. The multiprocessor uses Intergraph’s second generation Clipper C300 RISC microprocessor, and is being designed to use up to 256 processors, although initial production units will use eight processors, for estimated throughput of 112 MIPS. The machine will outperform conventional back-end databases many times by interfacing the Clippers to very-high-speed solid state memory rather than disk for secondary storage. Operating system and primary data management software were also done by EDS.