|OsDescriptionOSDescription=Designed in Cambridge, England by Acorn. First released in 1987, its origins can be traced back to the original team that developed the [http://www.arm.com/ ARM] microprocessor. Niche community using emulation, legacy systems and newer ARM hardware such as the [http://beagleboard.org BeagleBoard]. "[http://www.riscosopen.org/viewer/view/ Shared source]" fork ([http://www.castle-technology.co.uk/ Castle Technology Ltd]'s RO 5) available for free non-commercial use, proprietary fork ([http://riscos.com RISCOS Ltd]'s RO 4 & 6) closed source. Stable, semi-defunct commercial use. Development currently focused on ARMv7 hardware
|Contact=RISC OS Open, https://www.riscosopen.org/content/contact
