__NOTOC__
Common Hardware Reference Platform (CHRP) is a standard
system architecture for
PowerPC
PowerPC (with the backronym Performance Optimization With Enhanced RISC – Performance Computing, sometimes abbreviated as PPC) is a reduced instruction set computer (RISC) instruction set architecture (ISA) created by the 1991 Apple– IBM– ...
-based computer systems published jointly by
IBM and
Apple
An apple is an edible fruit produced by an apple tree (''Malus domestica''). Apple trees are cultivated worldwide and are the most widely grown species in the genus '' Malus''. The tree originated in Central Asia, where its wild ancest ...
in 1995. Like its predecessor
PReP, it was conceptualized as a design to allow various operating systems to run on an industry standard hardware platform, and specified the use of
Open Firmware and
RTAS for machine abstraction purposes. Unlike
PReP, CHRP incorporated elements of the
Power Macintosh
The Power Macintosh, later Power Mac, is a family of personal computers designed, manufactured, and sold by Apple Computer as the core of the Macintosh brand from March 1994 until August 2006.
Described by ''MacWorld'' as "the most important te ...
architecture and was intended to support the
classic Mac OS
Mac OS (originally System Software; retronym: Classic Mac OS) is the series of operating systems developed for the Macintosh family of personal computers by Apple Computer from 1984 to 2001, starting with System 1 and ending with Mac OS 9. ...
and
NetWare
NetWare is a discontinued computer network operating system developed by Novell, Inc. It initially used cooperative multitasking to run various services on a personal computer, using the IPX network protocol.
The original NetWare product in ...
, in addition to the four operating systems that had been ported to PReP at the time (
Windows NT
Windows NT is a proprietary graphical operating system produced by Microsoft, the first version of which was released on July 27, 1993. It is a processor-independent, multiprocessing and multi-user operating system.
The first version of Win ...
,
OS/2
OS/2 (Operating System/2) is a series of computer operating systems, initially created by Microsoft and IBM under the leadership of IBM software designer Ed Iacobucci. As a result of a feud between the two companies over how to position OS/2 r ...
,
Solaris, and
AIX
Aix or AIX may refer to:
Computing
* AIX, a line of IBM computer operating systems
*An Alternate Index, for a Virtual Storage Access Method Key Sequenced Data Set
* Athens Internet Exchange, a European Internet exchange point
Places Belgiu ...
).
CHRP did not receive industry-wide adoption, however. The only systems to ship with actual CHRP hardware are certain members of IBM's
RS/6000
The RISC System/6000 (RS/6000) is a family of Reduced instruction set computer, RISC-based Unix Server (computing), servers, workstations and supercomputers made by IBM in the 1990s. The RS/6000 family replaced the IBM RT PC computer platform in ...
series running
AIX
Aix or AIX may refer to:
Computing
* AIX, a line of IBM computer operating systems
*An Alternate Index, for a Virtual Storage Access Method Key Sequenced Data Set
* Athens Internet Exchange, a European Internet exchange point
Places Belgiu ...
, and small amount of Motorola PowerStack workstations.
Mac OS 8 contains support for CHRP
and
New World
The term ''New World'' is often used to mean the majority of Earth's Western Hemisphere, specifically the Americas."America." ''The Oxford Companion to the English Language'' (). McArthur, Tom, ed., 1992. New York: Oxford University Press, p. ...
Power Macintosh computers are partially based on CHRP and PReP.
Power.org
Power.org was an organization to develop and promote Power Architecture technology by establishing its open standards, guidelines, best practices, and certifications.
Power.org was founded in 2004 by IBM and 15 other companies. Freescale (later ...
has a new
Power Architecture Platform Reference (PAPR) that provides the foundation for development of
Power ISA
Power ISA is a reduced instruction set computer (RISC) instruction set architecture (ISA) currently developed by the OpenPOWER Foundation, led by IBM. It was originally developed by IBM and the now-defunct Power.org industry group. Power ISA ...
-based computers running the Linux operating system. The PAPR was released fourth quarter of 2006.
See also
*
OpenPIC and IBM MPIC
References
*
tp://ftp.software.ibm.com/rs6000/technology/spec/chrp/ CHRP Specification Version 1.0 and related documents*
tp://ftp.software.ibm.com/rs6000/technology/spec/jointhrp.ps The PowerPC (TM) Hardware Reference Platform an overview of CHRP
*
PREP / CHRP / ofppc / macppc confusionon NetBSD port-powerpc mailing list.
{{refend
External links
penguinppc.org description of CHRPMotorola StarMax 6000 at Low End Mac A CHRP machine that never shipped.
PowerPC mainboards
IBM computer hardware