And don't forget what I think is the most impressive, the transition from 68k to PowerPC. When they first did this, parts of the kernel were still compiled for

And don't forget what I think is the most impressive, the transition from 68k to PowerPC. When they first did this, parts of the kernel were still compiled for 68k. http://en.wikipedia.org/wiki/Mac_68K_emulator http://en.wikipedia.org/wiki/Mac_68K_emulator