Though Apollos were much more Unix-like than actual Unix, the DM environment (display manager?) on Apollo Aegis, Domain/IX, and Domain/OS workstations was pretty interesting, most notably for the sophisticated interaction between the command-line and GUI. The DM was a lot like the Moxie carbonated beverage - you either liked it or you really wanted to spit it out. Apollo systems also ran various versions of the X Window system, but the unique stuff was in the DM. Site such as Toastytech's GUI Timeline (http://toastytech.com/guis/guitimeline.html) and Typewritten Software's Retrotechnology Media page (http://www.typewritten.org/Media/) have many screen shots of old GUIs and apps, many on Unix or Unix-like systems. Bill