Symbolics Inc is working on co-processors built around its new Ivory symbolic processing chip for the Apple Macintosh and the IBM PS/2, and according to Computer Systems News, is considering buying those machines OEM and selling them configured with the co-processor as its comprehensive answer to Texas Instruments’ Mac II-based microExplorer. Separately, the Cambridge, Massachusetts company said that its Japanese distributor, Nippon Symbolics Corp, was putting up $1m for it to develop a VMEbus computer around the Ivory chip, and high-power VME video and graphics subsystem.