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- ARX_(operating_system) abstract "ARX was a Mach-like operating system written in Modula-2+ developed by Acorn Computers Ltd in the Acorn Research Centre (ARC) UK and later Olivetti Research Center and later on Software Technology Laboratory (when Olivetti bought out Acorn) at Palo Alto for their new ARM RISC processors based Archimedes computers range. According to the project Application Manager during the project, while Acorn was developing the kernel, it used C and Acorn Modula Execution Library (CAMEL) in Acorn Extended Modula-2 (AEM2) compiler (ported from Modula-2 ETH using Econet hardware), though never released externally, CAMEL was ported to use it in SUN Unix machines, in an effort to port Sun's workstations Sun NeWS to the Archimedes, and after Olivetti bought out Acorn, developed a compiler based on AEM2 for the Modula-3 programming Language.ARX was a pre-emptive multitasking, multithreading, multi-user operating system. Much of the OS ran in user mode and as a result suffered performance problems due to switches into kernel mode to perform mutexes, which led to the introduction of the SWP instruction to the instruction set of the ARM3 version of the ARM processor. It had support of optical (WORM) disks file system and featured a window system, a window toolkit (and a direct manipulation User Interface editor) and an InterScript-based text editor, for enriched documents written in InterPress (a HTML precursor). The OS had to be fitted in a 512 KB ROM image. This suggests that ARX had a microkernel-type design.It was not finished in time to be fitted to the Acorn Archimedes range of computers, which shipped in 1987 with the Arthur operating system, derived from the earlier MOS operating system from Acorn's earlier 8-bit BBC Micro range. Arthur was later superseded by RISC OS.The Acorn Research Centre was bought out by Olivetti.".
- ARX_(operating_system) developer Acorn_Computers.
- ARX_(operating_system) status "Historic".
- ARX_(operating_system) wikiPageExternalLink 007795.html.
- ARX_(operating_system) wikiPageExternalLink 20010824_Not_A_RISC_By_Thursday.
- ARX_(operating_system) wikiPageExternalLink Modula2ARX.txt.
- ARX_(operating_system) wikiPageExternalLink a252swp.txt.
- ARX_(operating_system) wikiPageID "245593".
- ARX_(operating_system) wikiPageLength "5442".
- ARX_(operating_system) wikiPageOutDegree "43".
- ARX_(operating_system) wikiPageRevisionID "687399084".
- ARX_(operating_system) wikiPageWikiLink 8-bit.
- ARX_(operating_system) wikiPageWikiLink ARM_architecture.
- ARX_(operating_system) wikiPageWikiLink Acorn_Archimedes.
- ARX_(operating_system) wikiPageWikiLink Acorn_Computers.
- ARX_(operating_system) wikiPageWikiLink Acorn_MOS.
- ARX_(operating_system) wikiPageWikiLink BBC_Micro.
- ARX_(operating_system) wikiPageWikiLink Category:ARM_operating_systems.
- ARX_(operating_system) wikiPageWikiLink Category:Acorn_operating_systems.
- ARX_(operating_system) wikiPageWikiLink Category:Discontinued_operating_systems.
- ARX_(operating_system) wikiPageWikiLink Central_processing_unit.
- ARX_(operating_system) wikiPageWikiLink Computer_multitasking.
- ARX_(operating_system) wikiPageWikiLink ETH_Zurich.
- ARX_(operating_system) wikiPageWikiLink Econet.
- ARX_(operating_system) wikiPageWikiLink HTML.
- ARX_(operating_system) wikiPageWikiLink Interpress.
- ARX_(operating_system) wikiPageWikiLink Kibibyte.
- ARX_(operating_system) wikiPageWikiLink Mach_(kernel).
- ARX_(operating_system) wikiPageWikiLink Macintosh.
- ARX_(operating_system) wikiPageWikiLink Microkernel.
- ARX_(operating_system) wikiPageWikiLink Modula-2.
- ARX_(operating_system) wikiPageWikiLink Modula-2+.
- ARX_(operating_system) wikiPageWikiLink Modula-3.
- ARX_(operating_system) wikiPageWikiLink Mutual_exclusion.
- ARX_(operating_system) wikiPageWikiLink NeWS.
- ARX_(operating_system) wikiPageWikiLink Olivetti.
- ARX_(operating_system) wikiPageWikiLink Operating_system.
- ARX_(operating_system) wikiPageWikiLink Palo_Alto,_California.
- ARX_(operating_system) wikiPageWikiLink Protection_ring.
- ARX_(operating_system) wikiPageWikiLink RISC_OS.
- ARX_(operating_system) wikiPageWikiLink ROM_image.
- ARX_(operating_system) wikiPageWikiLink Reduced_instruction_set_computing.
- ARX_(operating_system) wikiPageWikiLink Sun_Microsystems.
- ARX_(operating_system) wikiPageWikiLink Thread_(computing).
- ARX_(operating_system) wikiPageWikiLink United_Kingdom.
- ARX_(operating_system) wikiPageWikiLink Unix-like.
- ARX_(operating_system) wikiPageWikiLink User_interface.
- ARX_(operating_system) wikiPageWikiLink User_space.
- ARX_(operating_system) wikiPageWikiLink Write_once_read_many.
- ARX_(operating_system) wikiPageWikiLinkText "ARX (operating system)".
- ARX_(operating_system) wikiPageWikiLinkText "ARX operating system".
- ARX_(operating_system) wikiPageWikiLinkText "ARX".
- ARX_(operating_system) developer Acorn_Computers.
- ARX_(operating_system) family Unix-like.
- ARX_(operating_system) kernelType Microkernel.
- ARX_(operating_system) marketingTarget "Low cost paper-less office computing Workstation".
- ARX_(operating_system) name "ARX".
- ARX_(operating_system) programmedIn Modula-2+.
- ARX_(operating_system) supportedPlatforms ARM_architecture.
- ARX_(operating_system) ui "Macintosh-like Window System and special keyboard keys".
- ARX_(operating_system) wikiPageUsesTemplate Template:Acorn_computers.
- ARX_(operating_system) wikiPageUsesTemplate Template:Infobox_OS.
- ARX_(operating_system) wikiPageUsesTemplate Template:Mach-like.
- ARX_(operating_system) wikiPageUsesTemplate Template:See_also.
- ARX_(operating_system) workingState "Historic".
- ARX_(operating_system) subject Category:ARM_operating_systems.
- ARX_(operating_system) subject Category:Acorn_operating_systems.
- ARX_(operating_system) subject Category:Discontinued_operating_systems.
- ARX_(operating_system) hypernym Mach-like.
- ARX_(operating_system) type Company.
- ARX_(operating_system) type Software.
- ARX_(operating_system) type Work.
- ARX_(operating_system) type Company.
- ARX_(operating_system) type Computer.
- ARX_(operating_system) type CreativeWork.
- ARX_(operating_system) type Thing.
- ARX_(operating_system) type Q386724.
- ARX_(operating_system) type Q7397.
- ARX_(operating_system) comment "ARX was a Mach-like operating system written in Modula-2+ developed by Acorn Computers Ltd in the Acorn Research Centre (ARC) UK and later Olivetti Research Center and later on Software Technology Laboratory (when Olivetti bought out Acorn) at Palo Alto for their new ARM RISC processors based Archimedes computers range.".
- ARX_(operating_system) label "ARX (operating system)".
- ARX_(operating_system) seeAlso RISC_iX.
- ARX_(operating_system) sameAs Q281222.
- ARX_(operating_system) sameAs ARX.
- ARX_(operating_system) sameAs ARX.
- ARX_(operating_system) sameAs ARX.
- ARX_(operating_system) sameAs m.01kj_q.
- ARX_(operating_system) sameAs Q281222.
- ARX_(operating_system) wasDerivedFrom ARX_(operating_system)?oldid=687399084.
- ARX_(operating_system) isPrimaryTopicOf ARX_(operating_system).
- ARX_(operating_system) name "ARX".