RISC OS 2

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RISC OS 2 is an operating system written by Acorn Computers Ltd, and first released in 1989. It is the successor to Arthur.

It was succeeded by RISC OS 3 in 1991.

Description

RISC OS is based on Arthur, but adds multitasking support to the Window Manager. The Desktop was completely rewritten.

Version history

Version Release date Computers Details
2.00 1989 Archimedes 400/1 series
A3000
Sold as an official ROM upgrade for earlier machines.
2.01 1990 Archimedes 540 First release to support 16 MB of RAM
First release to include Power-On Selt Test
ARM3 support