Yes - I realize that --- hence my DOS 3 days disclaimer. They've all come a long way since then. No more manually setting interupts, etc. Plug 'n pray even involves a lot less praying now than it used to.
You do realize that today's Mac are 100% UNIX, right? The kernel is Open Sourced (under the BSD License in the form of Darwin), the language (Objective-C) was set to revolutionize UNIX when it was NeXT, and it is apparently still a great language.
-- OK Don, KD5NRO Norman, OK "Even if you're on the right track, you'll get run over if you just sit there." Will Rogers '90 300D, '87 300SDL, '81 240D, '78 450SLC, '97 Ply Grand Voyager