Episode 90 - Where Did The S100 Bus Go?
Advent of Computing
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The Apple to Bus
Apple's little bus was more complicated than a parallel wired back plane. Original altar bus wasn't very active at all. The etripole speck added more diligence, but everything had to be implemented on the card level. On first class, it may look like you have access to the same buses that the processer supplies,. But there's a little bit more going on. D m a daisy chain pin allows you to have multiple cards that can each perform d m a.
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