Well, Linux and Unix are not easy-to-use. Before using that OS, Users should learn some commands. Whereas, Windows is more user-frendly OS than those, I think. Before using Windows, users need to learn just the way to use mouse like 'Duble-Clicking' ' Dragging'. Of course, Linux and Unix are good OS, too. I heard from many computer programmers that Unix is really good OS for them. But not for computer beginners.