Ok, you're right Jaqui, I phrased that entirely incorrectly. I agree that MAC had developed the first truly easy to use GUI. (Amiga I think had one before but not as user friendly). They just didn't have the marketing hutsba to reach the home user market, the one that truly makes the make-it/break-it differnce; windows 9x series did. And actually, win95/98 were also built over DOS which is a quickie knock=off of CP/M. Only the NT series is not. MAC prior to OS/X has always been an apple based OS. OS/X is BSD (read UNIX) based, not Linux. CP/M and UNIX are both based on POSIX.