I'm not a total computer 101 nerd with all the facts about the internals and externals but I can say windows 7 is ruler of all. It's simple, easy to use, straight forward stuff. You have everything you need on windows 7. You can use it without the "hassle" of using a computer emulator thing to get downloads from windows to mac. Another thing it's compatable with everrything! Mac is so useless when it comes to downloading games and stuff. It all seems limited and bleh.