Whats a good site or book that can teach me computer lingo? computer parts mostly.?

i have this friend who is annoying the crud out of me. hes not a very smart guy, but hes been hanging with one who is. this guy hes been hanging out with is teaching him how to build a computer. i asked him about what he was learning and he acts like he a computer genius, talking down to me and such. i would love to get a good site and book that will teach me about computer parts and lingo used.