I'm a geek, so that's probably why.
So was/is Bill Gates, Steve Jobs, Steve Wozniak, Erick Schmidt, Jeff Bezos (seriously, have you heard his laugh?), etc. etc. Bottom line is , being a geek is a good thing, not a bad thing. When those idiot bullies get into college (assuming they get accepted anywhere), they'll quickly realize that the world doesn't revolve around them and they will have their arses handed to them. So called geeks on the other hand, spend their time learning about different things and that translates into being more intellectual which will only carry your farther in your college, personal, and professional life.
For now though, just be sure to tell an adult, school counselor, etc and make sure they get involved. This whole society is going to **** in a handbasket with so much emphasis put on vanity and looking good, that we forget as people, we are to love one another and treat everyone with the respect they deserve despite the fact that someone may act or look differently than they do.
I'll be completely honest with you, it may seem like a big deal to you since it's the only frame of reference you have but once you get into college and look back, you'll quickly realize that all the petty crap that goes on in high school is pretty meaningless. Also, once you hit 15-16 years old, you start focusing on girls, driving, etc. so the bullying and acting childish kind of just goes away on its own. If it still persists, carry your head high, act confident and don't let it bother as best as you can. I know being ridiculed and that words hurt, but do your best to try and not let it phase you. Also, find a local club or church youth group to get involved with. When I was in high school, my youth group was constantly doing activities and having parties on the weekend and some of the best times I ever had in high school, were at those functions. The friends I made in youth group are lifelong friends to this day as well.