First off, congrats on going to university. Second, what school are you going to?
Really, all you should need to do before you get there, if anything, is review what you already know. You'll get an outline on the first day about what you're going to cover in the lectures, so if you're really keen, you cna read ahead in the text.
Some profs will have course notes that they use, which gives you the infromation that you need to know, since they don't always use the entire textbook. Unless you give more info about the courses (All we know is that they're intro courses, but beyond that, nothing), that's all I can really give you to go on.