The MIPS Magnum was a line of computerworkstations designed by MIPS Computer Systems, Inc. and based on the MIPS series of RISCmicroprocessors. The first Magnum was released in March, 1990, and production of various models continued until 1993 when SGI bought MIPS Technologies. The early, R3000-based Magnum series ran only RISC/os, a variant of BSDUnix, but the subsequent Magnum workstations based on the Jazz architecture ran both RISC/os and Windows NT. In addition to these proprietary operating systems, both Linux and NetBSD have been ported to the Jazz-based MIPS Magnum machines.
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