> A/UX, Apple's own Unix with a bolted-on Mac compatibility layer I used a Mac running A/UX circa 1990-91. It worked rather well for the period. I was really s

> A/UX, Apple's own Unix with a bolted-on Mac compatibility layer I used a Mac running A/UX circa 1990-91. It worked rather well for the period. I was really surprised when Apple dropped it because it solved a lot of what I saw as problems in MacOS. The article also mentions Apple talk. There was some free software called UAB, Unix-to-AppleTalk Bridge around that same timeframe.