ARX
ARX was a
Xerox-like
operating system developed by
Acorn computers in the
UK and at the Acorn Research Centre (ARC) at
Palo Alto for their new
ARM RISC processorss. It was a pre-emptive
multitasking,
multithreading, multi-user operating system. It was not finished in time to be fitted to the
Archimedes range of computers, which shipped in
1987 with the
Arthur operating system, which was later superseded by
RISC OS.
The Acorn Research Centre was later bought out by Olivetti.