We haven't been this excited about a "new" computer since John Pultorak built a replica Apollo Guidance Computer in his basement. Our new hero is Harry Porter, a wizard from Oregon, who is building a computer the old-fashioned way: by hand, using 415 relays, 111 switches and 350 LEDs (gotta love those LEDs). When finished, he'll have a computer that will take up a whole room, and will have about as much processing power as a pocket calculator. But he'll have made history (and he'll be able to flick off the lights and groove to all those LEDs).