<Can someone educate me as to how the 8800, the 8800A <and the 8800B differ? <I would really like to know about all the differences <in the three. All three are 8080 and s100. The 8800 and 8800a are esentially the same save for the A has most of mods and improvements designed in. The number of mods are in the dozens but include a powersupply large enough to be useful. The 8800b is a radically redesigned front panel using proms and more sequential logic rather that the flaky oneshots used in the earlier version. There was a front pannel less version with a turnkey boot. Track down the docs as it's far more to it than this outline. Allison