Terminating SGI’s Unix license would affect SGI’s Irix operating system, which uses SCO’s System V Unix code, according to SCO spokesman Blake Stowell.

However, in late December, Novell, which bought Unix from AT&T before selling at least some of the intellectual property to a SCO predecessor, disputed SCO's claims of Unix copyright ownership.

Add articles to your saved list and come back to them any time. More doubts have been cast on the heritage of System V Unix code, which the SCO Group claims as its own, by an Australian who runs ...