A Good Buy on UNIX Special Report by Dean Hannotte from the June 12, 1984 issue of PC Magazine The Mark Williams Company’s COHERENT operating system is a rewritten version of the seventh edition of UNIX, with some extensions and enhancements. Regrettably, it has incoherencies. The Mark Williams Company’s COHERENT operating system is a State-of-the-art microcomputer implementation of AT&T’s UNIX, without the state-of-the-art AT&T licensing fees. It is a completely rewritten version of the seventh edition of UNIX and includes some of its multi-user and multitasking abilities.

from the December 11, 1984 issue of PC Magazine UNIX fans have always believed their system was better than DOS. Now, with the release of the PC AT, many think UNIX will become the industry’s preferred operating system. by Gig Graham The software and hardware standards that have evolved from the remarkable success of the IBM PC and XT have stabilized the microcomputer industry, but at the expense of some sophistication in applications programs developed for the PC.