This is your chance to meet new people who have the same interests as you. Changing from a high school where very few people are interested in technology to a college where your entire program is filled with people who share your same general interests creates an awesome environment to grow and share ideas. The group of friends you meet in classes the first year can lead to an awesome experience in the second year, as you find people who you work well and agree with who will want to be roommates in later years. Can anyone say hacker house?
Socially, college is very similar to high school. Real life is radically different. In some ways, it's worse. In others, it's better.
I think the best social experience can be had in late college, when you're old and mature enough to reject the bullshit (hookups, binge drinking, gossip) and still surrounded by brilliant, interesting people. My hope is that the OP will be wise enough to skip to this phase, which is "late college" for most of us, much earlier than the rest of us did.
College provides you great opportunities to meet fascinating people, if you're wise about how you do things; if you're not, you just end up expensively wasting time.