Having an interest in science shouldn't label you as a 'nerd'. Amirite?

I think it would be the opposite

nerd:
an intelligent but single-minded person obsessed with a nonsocial hobby or pursuit.
(dictionary.com)

I think that's a pretty concise are accurate definition

dictionary has two definitions that i think work.

1.a computer expert or enthusiast

2.a peculiar or otherwise dislikable person, especially one who is perceived to be overly intellectual.

I think geeks are much more restricted to computers, i.e. they're computer nerds. I also think that geeks can be a little more annoying/arrogant about their knowledge than nerds, but thats more subjective.

so to say it concisely: geeks are hardcore computer nerds.