It might just be the high school I attended but I can only think of one kid out of about 3000 in the entire school who was intimidatingly competent with computers. I can see where you're coming from. Making too big of a deal out of his age might be annoying to some people but with age comes experience and all the anecdotal evidence at my disposal says that most high schoolers don't have this experience yet. :/
To be clear, the reason why I find this impressive is because I would assume it implies a significant amount of studying in his free time since computer architecture isn't exactly standard high school curriculum.
