The claim from Hewlett-Packard Co that HP-RT is the first standards-based real-time operating system on a RISC platform from a leading vendor of Unix-system-based products with regard to its announcements on today’s front page seems certain to elicit howls of protest from the likes of Modular Computer Systems Inc – pioneer of real-time Unix, Harris Corp and Encore Computer Corp, all of which have real-time Unix implementations on the 88000 RISC, and Concurrent Computer Corp with real-time Unix on the MIPS Technologies Inc R-series – so how does Hewlett-Packard stand the claim up – surely not that none of the others is a leading vendor?