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 '''MIPS''' ('''Microprocessor without Interlocked Pipelined Stages''') is a family of reduced instruction set computer (RISC) instruction set architectures (ISA) developed by MIPS Computer Systems, now MIPS Technologies, based in the United States. It is relevant for powering every SGI machine between the [[Professional IRIS]] and [[Tezro]]
-The first version of the MIPS architecture was designed by MIPS Computer Systems for its R2000 microprocessor, the first MIPS implementation. Both MIPS and the R2000 were introduced together in 1985.<sup>[''failed verification'']</sup> When MIPS II was introduced, ''MIPS'' was renamed ''MIPS I'' to distinguish it from the new version.
+== Overview of MIPS ==
-MIPS Computer Systems' R6000 microprocessor (1989) was the first MIPS II implementation. Designed for servers, the R6000 was fabricated and sold by Bipolar Integrated Technology, but was a commercial failure. During the mid-1990s, many new 32-bit MIPS processors for embedded systems were MIPS II implementations because the introduction of the 64-bit MIPS III architecture in 1991 left MIPS II as the newest 32-bit MIPS architecture until MIPS32 was introduced in 1999.
+SGI’s embrace of MIPS began in 1986 with the [[Professional IRIS]] series, powered by the R2000. This marked a shift away from Motorola 68k processors in SGI’s earlier [[68k-based SGIs (IRIS Series)|IRIS Series]] workstations.
-MIPS Computer Systems' R4000 microprocessor (1991) was the first MIPS III implementation. It was designed for use in personal, workstation, and server computers. MIPS Computer Systems aggressively promoted the MIPS architecture and R4000, establishing the Advanced Computing Environment (ACE) consortium to advance its Advanced RISC Computing (ARC) standard, which aimed to establish MIPS as the dominant personal computing platform. ARC found little success in personal computers, but the R4000 (and the R4400 derivative) were widely used in workstation and server computers, especially by its largest user, Silicon Graphics. Other uses of the R4000 included high-end embedded systems and supercomputers. MIPS III was eventually implemented by a number of embedded microprocessors. Quantum Effect Design's R4600 (1993) and its derivatives were widely used in high-end embedded systems and low-end workstations and servers. MIPS Technologies' R4200 (1994), was designed for embedded systems, laptop, and personal computers. A derivative, the R4300i, fabricated by NEC Electronics, was used in the Nintendo 64 game console. The Nintendo 64, along with the PlayStation, were among the highest volume users of MIPS architecture processors in the mid-1990s.
+MIPS was continually refined over the relationship with SGI, culminating in the R12000 family and higher clock derivatives including the R14000 and R16000. SGI's financial troubles in the early 2000s led to them selling off the MIPS IP and eventually migrating to Itanium 2 architecture, which was being pushed as a joint HPE/Intel venture and similarly adopted by Compaq and several Japanese companies to replace older RISC designs.

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'''MIPS''' ('''Microprocessor without Interlocked Pipelined Stages''') is a family of reduced instruction set computer (RISC) instruction set architectures (ISA) developed by MIPS Computer Systems, now MIPS Technologies, based in the United States. It is relevant for powering every SGI machine between the [[Professional IRIS]] and [[Tezro]]

The first version of the MIPS architecture was designed by MIPS Computer Systems for its R2000 microprocessor, the first MIPS implementation. Both MIPS and the R2000 were introduced together in 1985.<sup>[''failed verification'']</sup> When MIPS II was introduced, ''MIPS'' was renamed ''MIPS I'' to distinguish it from the new version.

MIPS Computer Systems' R6000 microprocessor (1989) was the first MIPS II implementation. Designed for servers, the R6000 was fabricated and sold by Bipolar Integrated Technology, but was a commercial failure. During the mid-1990s, many new 32-bit MIPS processors for embedded systems were MIPS II implementations because the introduction of the 64-bit MIPS III architecture in 1991 left MIPS II as the newest 32-bit MIPS architecture until MIPS32 was introduced in 1999.

MIPS Computer Systems' R4000 microprocessor (1991) was the first MIPS III implementation. It was designed for use in personal, workstation, and server computers. MIPS Computer Systems aggressively promoted the MIPS architecture and R4000, establishing the Advanced Computing Environment (ACE) consortium to advance its Advanced RISC Computing (ARC) standard, which aimed to establish MIPS as the dominant personal computing platform. ARC found little success in personal computers, but the R4000 (and the R4400 derivative) were widely used in workstation and server computers, especially by its largest user, Silicon Graphics. Other uses of the R4000 included high-end embedded systems and supercomputers. MIPS III was eventually implemented by a number of embedded microprocessors. Quantum Effect Design's R4600 (1993) and its derivatives were widely used in high-end embedded systems and low-end workstations and servers. MIPS Technologies' R4200 (1994), was designed for embedded systems, laptop, and personal computers. A derivative, the R4300i, fabricated by NEC Electronics, was used in the Nintendo 64 game console. The Nintendo 64, along with the PlayStation, were among the highest volume users of MIPS architecture processors in the mid-1990s.

MIPS - Revision history

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