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ARCS is afirmwarebootloader (also known as aPROMconsole) used in most computers produced bySGI since the beginning of the 1990s.
The ARCS system is loosely compliant with theAdvanced RISC Computing (ARC) standard, promulgated by theAdvanced Computing Environment consortium in the early 1990s. In another sense, the ARC standard is based on SGI's ARCS, which was used as a basis for generating the ARC standard itself, although ARC calls for alittle-endian system while ARCS system isbig-endian on allMIPS-based systems. Despite various inconsistencies between the two, both SGI's ARCS implementations and the ARC standard share many commonalities (such as device naming, calling conventions,etc.).
Most of the computers which use the ARCS firmware are based on the MIPS line ofmicroprocessors. TheSGI Visual Workstation series, which is based on theIntelPentium III, also uses ARCS. The Visual Workstation series is the only commercially producedx86-compatible system which used an ARCS firmware, rather than the traditional PCBIOS used in most Intel 386-lineage machines.
A list of product lines which use the ARCS console includes:
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