Perihelion Software

Perihelion Software was a UK company founded in 1986 by Dr Tim King along with a number of colleagues who had all worked together at MetaComCo on AmigaOS and written compilers for both the Amiga and the Atari ST.

Perihelion produced an operating system for the INMOS Transputer called HeliOS. This was a system that looked like Unix but which could pass messages to processes running on either the same processor or another one. This was used in the Atari Transputer Workstation among other places.

Later HeliOS was ported to other processors including the ARM architecture.