@koaftder
What have you been smoking now? No one has claimed that Amiga and amigaos was the first computer to have these features. Amiga was on the other hand the very first computer aimed at the home market with such features. The only computers that could rival the amiga, was what we would call high end super computers which would cost you a million or so.
The pc back then had ega, pc speaker, no multitasking and so on.
True preemptive multitasking and memory protection were concepts pioneered and realized in the 1960's. And here it is in 2007 and os4 still doesn't have proper memory protection.
Not very suprising is it, considering that AmigaOS has not been in developement since the early 90s and then it is kinda hard for a few developers to make it modern in just as few years. os3.5 and 3.9 was in my eyes not a real upgrade but instead os3.1 bundled with some third party patches and so on..
The amiga was infact the first real multimedia computer aimed at the home.
And todays pcs can by the way still not scroll perfectly, which the amiga has done since 1985 thanks to the custom chipset. :-P