I think you are right. If I have several application minimized under windows and I try to go back to one app after few hours it not only takes a long time to ma

I think you are right. If I have several application minimized under windows and I try to go back to one app after few hours it not only takes a long time to maximize its stop everything else from working. The performance get worse as you use your computer longer. I remember my fresh window7 install was a nice change over vista but it has gone worse in last few months and it gets slightly better every time I defrag HD and register, it gets worse again after few weeks/months. This never happens on OSX. They are obviously doing something right.