whole world once used nokia, blackberry, aol, aim, sidekick, nextel, desktop....your point???
You're too stupid at times to even realize what you're saying.
How are people in 3rd world countries going to use a computer when they have no internet connection or don't have a reliable connection?
People use Windows because it's simple and it's something they have been using their whole life. Do you honestly see major universities, companies , etc switching to using Chrome instead of Apple?