Do you consider your self a nerd?What is the defition of a nerd?

I think of nerds as very clever people who are great with facts, figures and computers, I think maybe they spend so much of their time with these things they become a passion and maybe they forget about the other little things in life that people rate as important, I admire nerds they live their lives regardless of what people tag them with I think they are happy without all the tinsel.