Wow. Arthur 1.0, the original operating system for the Acorn Archimedes, and forerunner of RISC OS.
![[Screenshot of Arthur Desktop, running Diary, Note-Pad and Calculator]](/news/blogpics/2005.04.10.arthurdesktop.png)
Having played with it a bit via A310Emu this evening, I can confidently say that I’ve finally found a user interface which is more unpleasant than Windows.