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ARCS
From Wikipedia, the free encyclopedia
ARCS is a firmware bootloader (also known as a PROM console) used in most computers produced by SGI since the beginning of the 1990s.
The ARCS system is loosely compliant with the Advanced RISC Computing (ARC) standard, promulgated by the Advanced Computing Environment consortium in the early 1990s. In another sense, the ARC standard is in fact based on SGI's ARCS, which was used as a basis for generating the ARC standard itself, although ARC calls for a little-endian system while ARCS system is big-endian on all MIPS-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.).
A majority of the computers which use the ARCS firmware are based on the MIPS line of microprocessors. However, the SGI Visual Workstation series, which is based on the Intel Pentium III, also uses ARCS. The Visual Workstation series is the only commercially produced Intel 386-compatible system which used an ARCS firmware (rather than the traditional PC BIOS used in most Intel 386-lineage machines).
A list of product lines which use the ARCS console includes:
- SGI Indigo (ip12)
- SGI Indy (ip22)
- SGI Indigo2 (ip20)
- SGI O2 (ip32)
- SGI Octane (ip30)
- SGI Fuel
- SGI Origin 200
- SGI Onyx
- SGI Tezro
- SGI Visual Workstation