What kind of programmer knows how the electrical engineering of a keyboard works and why should that be a deciding factor in getting a job in some crumby intern

What kind of programmer knows how the electrical engineering of a keyboard works and why should that be a deciding factor in getting a job in some crumby internet company that has no business working on hardware layer tech? Even as someone who has an understanding of these things, why would I entertain you with something as menial as how the browser does html parsing? If you want to know if I know what that is, just ask me what that is. Don't treat your candidates like lab rats.