Onyx Systems, Inc., founded in Cupertino, California in 1979 by Bob Marsh and Kip Myers, was one of the earliest vendors of microprocessor-based Unix systems. The company's initial Unix ports targeted the Zilog Z8000 16-bit microprocessor as CPU, with Bell Labs' Unix Version 7.
The company's first product, the C8000, was a Z80-based micro running the CP/M OS, with a hard disk, and a tape drive for backups. It included IBM terminal emulation and a COBOL compiler, with a Z8000-based CPU add-in board to follow. The Unix-based product was the first platform for the Informix relational database system.
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