Just how many "brains" does a PC need?Iraqi Christian refugee children work on computers in a school run by Father Rodolfo Antoniassi in Istanbul, in this file picture dated September 25, 2006. REUTERS/Jerry Lampen Not that buying a PC was ever as easy as, say, buying a toaster or an electric toothbrush, but the companies that make the electronic brains, or microprocessors, for PCs today have managed to make it even more complicated.
