QNX from QNX Software Systems Ltd (Formerly QSL) in Canada is a POSIX compliant Real time operating system and development tools. It utilizes a very compact Unix like kernel which ran at the time on Intel hardware.

I worked on version 4.2 of QNX  at Thorn Transit (Wells, Somerset, England) to provide a number of object orientated communications interfaces to colleagues working on a new railway ticketing system for MTR in Hong Kong.  This involved writing client-server communications between the embedded OS system and Solaris running on Sun SPARC. Much of the code was also used for a similar system for the metro in Kuala Lumpur. The MTR project took me to Hong Kong for a couple of months during 1997 but regretfully I never got the same chance to visit Kuala Lumpur.

Given my UNIX experience at the time I also set up QNX development network for five development teams.