You know how a lot of computers use windows? And a lot are macs? And there's a difference between the way you have menus and apps and stuff? Linux is a third way to use your computer. But there's a lot of versions of it. It doesn't matter what kind of computer you put it on either. New, old, windows, Mac, mini computers, old laptops. Linux is simply another way to use your computer. It's really cool if you're into that kind of thing.