RISC/os

System V-derived, big endian MIPS UNIX with BSD and POSIX extensions, for the computer systems made by the former MIPS Computersystems, Inc. including the MIPS Magnum 3000 (also known as mipsco), Microsoft/MIPS Magnum 4000 (Jazz), M120 and more.

See also

• MIPS OS
• The RISC/os article at Wikipedia.