About RISC OS

RISC OS is a operating system for computers orginally designed by the British company Acorn Computers Ltd. and was first published in the year 1987. RISC OS was specialy designed to us on computers made by Acorn but Acorn computers used ARM processor that Acorn specialy made for their computers. Acorn developed RISC OS until 1998 but then the company splitted up. From 1998 the RISC OS was maintaned dveloped further by several companies but in diffrent versions. RISC OS Ltd, published RISC OS 4 and later RISC OS 6 but both 26 bit version of the OS. Castle Technology developed and published RISC OS 5 witch is 32 bit version of the OS and was used for Iyonix computer and later on A9home. RISC OS Open Ltd (ROOL) got licence from Castle to develop and publish RISC OS as opensource software and are still today maintainging and developing the operating system. In October 2018 RISC OS Developments Ltd bought the development licence from Castle Technology and republich the operating system as Apache 2.0 opensource and are developing the operating system in co-operation with ROOL.

Today it is possible to use the operating system on various hardware e.g. Raspberry Pi and emulators for most common system as Windows, MacOS and Linux.

Below are links for more detail about the RISC OS and the history of the operating system.

RISC OS links

Bolow are links where it is possible to download RISC OS image for various type of hardware and read more about the operating system. Also are links to company sides that are selling hardware and software for the RISC OS operating system.

Icon	Decription
	On RISC OS Developments homepage is a link to download RISC OS ROM image for Raspberry Pi platform. This ROM impage include wery good software package and can be programmed to SD card of 16GB or larger.
	On RISC OS OPEN homepage are links to download basic RISC OS ROM image for varous platforms. Those ROM impages can be programmed to SD card of 4GB or larger.
	Elesar are selling spcial made mainboard for RISC OS named Titanium. This mainboard can be setup for both RISC OS and Linux. Elesar are also selling various type of software for RISC OS.
	RComp are selling both hardware and software specially made for RISC OS. At RComp you can buy various types of Parpberry Pi solutions in diffrent type of cases. RComp are also selling more advanced hardware with RISC OS linstalled like Titanium tower and PineBook Pro labtop.
	RISCOSbits are selling various type of hardware for the RISC OS operating system, but those solutions are based on Raspberry Pi board with range of cases.
	RPCEmu emulate classinc ACORN computes like Risc PC and A7000. RPCEmu can be used on Windows, Linux and Mac OS X.