Take classes in many different subjects before picking your major. Try lots of different clubs and activities. Make friends with people who grew up much poorer than you, and others much richer. Date someone of a different race or religion. (And no, hooking up at a party doesn't count.) Spend a semester abroad or save up and go backpacking in Europe or Asia.
1.Try lots of things in college. You never know what's going to stick.
2.Most important: research experience shows you how knowledge is produced. There are worse ways to prepare for life in an information age.
3.You don't need a computer to take notes — good note-taking is not transcribing. All that clack, clack, clacking ... you're a student, not a court reporter. And in seminar or discussion sections, get used to being around a table with a dozen other humans, a few books and your ideas. After all, you have the rest of your life to hide behind a screen during meetings.