Honda Integra DC5, a Japanese sports car known as the Acura RSX in North America
It had its roots in the IAS, TOPS-20, and RT-11 operating systems and was implemented as a standard across most of Digital's operating systems, notably RSX-11, but took its most powerful form in the OpenVMS operating system.
There have been developments in enabling access to the RSX through the Linux kernel and the X Window System.