The name was an acronym for a design philosophy: Microprocessor without Interlocked Pipeline Stages. MIPS began as a research project at Stanford University, where John L. Hennessy and his colleagues pioneered the RISC -- Reduced Instruction Set Computing -- concept that would reshape processor design worldwide. In 1984, Hennessy and fellow researchers including Chris Rowen, Skip Stritter, and John Moussouris founded MIPS Computer Systems to commercialize their work. The company's processors would find their way into Silicon Graphics workstations, Sony PlayStations, and billions of embedded devices. But MIPS the company had a far more turbulent journey than MIPS the architecture.
MIPS designs attracted attention quickly. By 1986, companies like Silicon Graphics, Prime Computer, and Digital Equipment Corporation were adopting the R2000 processor for new products. SGI embraced the MIPS architecture after concluding that the Motorola 68000 series was at the end of its price-performance curve. The company held its first IPO in December 1989. But MIPS made a fateful decision: instead of remaining a chip design company, it tried to become a computer vendor. The costs of developing both chips and complete systems proved unsustainable, and in 1992, SGI acquired MIPS for $333 million, making it a wholly owned subsidiary.
SGI spun MIPS out in 1998 as an intellectual property licensing company. Over the following decades, MIPS changed hands with disorienting frequency: purchased by Imagination Technologies in 2013, sold to Tallwood Venture Capital in 2017, acquired by Wave Computing in 2018. Wave declared bankruptcy in 2020. When the company emerged in 2021, it made a startling announcement: the MIPS architecture was being abandoned in favor of RISC-V, the open-source instruction set. In 2025, GlobalFoundries acquired what remained. The company that had pioneered RISC ended up adopting someone else's RISC design.
The irony of MIPS's corporate decline is that its architectural ideas won completely. RISC principles, which MIPS helped establish, now dominate processor design worldwide through ARM, RISC-V, and Apple's M-series chips. Over 500 million MIPS-based processors shipped annually at the architecture's peak, powering devices from home routers to PlayStation 2 consoles. John Hennessy went on to become president of Stanford University. His co-developer, David Patterson, collaborated on RISC-V. The intellectual lineage from MIPS the research project to the processors in modern smartphones is direct, even if MIPS the company could not sustain itself along the way.
MIPS Technologies was based at 37.42°N, 122.07°W in the Silicon Valley corridor near Mountain View/Sunnyvale. The broader tech campus area is visible from altitude. Nearby airports: Moffett Federal Airfield (KNUQ), San Jose (KSJC). Best viewed at 2,000-4,000 ft AGL.