The fine people at iFixit have taken the extremely awesome step of tearing down some very retro gear this week, and up first, they've got the Magnavox Odyssey 100 which dates from 1975. The gaming console, which boasted two (count them ) games -- Tennis and Hockey -- was built around four Texas Instruments chips and powered by six C batteries. It was also the first home gaming console, so we were pretty interested in seeing its insides. What struck us in looking at the photos was the most obvious thing: how much emptier it is than modern gadgets. It was also completely disman