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1. The Free On-line Dictionary of Computing (30 December 2018) |
RISC OS
(Reduced Instruction Set Computer Operating
System) The operating system originally developed by Acorn
Computers for their Archimedes family of personal
computers.
RISC OS replaced the Arthur operating system used on the
first Archimedeses.
It is written in ARM assembly code and distributed on
ROM so it takes up no disk space and takes no time to load.
It supports cooperative multitasking with memory management
and includes a graphical user interface or "WIMP". It is
written in a highly modular style and makes extensive use of
vectors so it is easy to modify and extend by loading new
modules in RAM. Many system calls (called "SWIs" -
software interrupts) are available to application programmers
and some of these are available as user comands via a built-in
command-line interpreter. RISC OS also supported outline
fonts when only bitmap fonts were available on most other
platforms.
Following the virtual demise of Acorn, development of RISC OS
4 was taken over by RISCOS Ltd on 1999-03-05 and released on
1999-07-01.
(2004-09-21)
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Common Misspellings > |
RISC OS IRISC OS IRSC OS RIRSC OS ISC OS RRISC OS RSIC OS RISIC OS RSC OS RIISC OS RICS OS RISCS OS RIC OS RISSC OS RIS COS RISC COS RIS OS RISCC OS RISCO S RISC O S RISCOS RISC OS RISC SO RISC OSO RISC S RISC OOS RISC SOS RISC O RISC OSS 4ISC OS r4ISC OS 4rISC OS $ISC OS r$ISC OS $rISC OS 5ISC OS r5ISC OS 5rISC OS eISC OS reISC OS erISC OS tISC OS rtISC OS trISC OS dISC OS rdISC OS drISC OS fISC OS rfISC OS frISC OS gISC OS rgISC OS grISC OS R8SC OS Ri8SC OS R8iSC OS R*SC OS Ri*SC OS R*iSC OS R9SC OS Ri9SC OS R9iSC OS RuSC OS RiuSC OS RuiSC OS RoSC OS RioSC OS RoiSC OS RjSC OS RijSC OS RjiSC OS RkSC OS RikSC OS RkiSC OS RlSC OS RilSC OS RliSC OS RaSC OS ReSC OS RIqC OS RIsqC OS RIqsC OS RIwC OS RIswC OS RIwsC OS RIeC OS RIseC OS RIesC OS RIaC OS RIsaC OS RIasC OS RIdC OS RIsdC OS RIdsC OS RIzC OS RIszC OS RIzsC OS RIxC OS RIsxC OS RIxsC OS RIcC OS RIscC OS RIcsC OS RI C OS RIs C OS RI sC OS RISs OS RIScs OS RISsc OS RISd OS RIScd OS RISdc OS RISf OS RIScf OS RISfc OS RISx OS RIScx OS RISxc OS RISv OS RIScv OS RISvc OS RIS OS RISc OS RIS c OS RISC 9S RISC o9S RISC 9oS RISC (S RISC o(S RISC (oS RISC 0S RISC o0S RISC 0oS RISC iS RISC oiS RISC ioS RISC pS RISC opS RISC poS RISC kS RISC okS RISC koS RISC lS RISC olS RISC loS RISC aS RISC eS RISC uS RISC Oq RISC Osq RISC Oqs RISC Ow RISC Osw RISC Ows RISC Oe RISC Ose RISC Oes RISC Oa RISC Osa RISC Oas RISC Od RISC Osd RISC Ods RISC Oz RISC Osz RISC Ozs RISC Ox RISC Osx RISC Oxs RISC Oc RISC Osc RISC Ocs RISC O RISC Os RISC O s Definition commonly spelled as: Defanition or Defenition, Synonym as: Synonim, Sinonym or Sinonim, Thesaurus as: Thesorus or Thesauris, Dictionary as: Dictionery or Dictionry and Define is usually not misspelled. What does mispell meen? It Meens...
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