tech-nerd
Someone who is exceptionally skilled with, knowledgeable of, or enthusiastic about technology, especially to the detriment of other skills or interests. Hey, Jim—I know you're a bit of a tech-nerd. Would you mind having a look at my computer and see if you can find out what's wrong with it? Look, no one but tech-nerds and industry analysts are going to care about the tiny upgrades they're making in the next model of phone. It's certainly not worth shelling out nearly $1,000 for one.
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