I don't think people under 45 remember what the software was like before. Everything including AT&T Unix had a high price point and many "versions" of Unix that

I don't think people under 45 remember what the software was like before. Everything including AT&T Unix had a high price point and many "versions" of Unix that caused incompatibilities. LISP systems were extremely expensive and rare. The number is around 7,000 units sold up till 1988. In 1987 Unix became a "Thing" and in 1989 as a teenager I built a fiber optic network with a friend of mine and used System V running Word Perfect and Lotus 1-2-3. It ran into the 21st Century :) > "In a move intended to unify the market in 1987, AT&T announced a pact with Sun Microsystems, the leading proponent of the Berkeley derived strain of UNIX. However, the rest of the industry viewed the development with considerable concern. Believing that their own markets were under threat they clubbed together to develop their own "new" open systems operating system. Their new organization was called the Open Software Foundation (OSF). In response to this, the AT&T/Sun faction formed UNIX International. The ensuing "UNIX wars" divided the system vendors between these two camps clustered around the two dominant UNIX system technologies: AT&T's System V and the OSF system called OSF/1. In the meantime, X/Open Company held the center ground. It continued the process of standardizing the APIs necessary for an open operating system specification." - http://www.unix.org/what_is_unix/history_timeline.html http://www.unix.org/what_is_unix/history_timeline.html