I need to write up some info on how the Apple II encodes text. I read in a Wikipedia article that it uses 7bits to encode a 64 character set. Well, we only need 6 bits, to define 64 values. So how do the other 64 values in a 7bit value get used? Also, it says the 8th bit is used as a toggle between modes. All in all the article is not quite clear enough. Does anyone have a link to a PDF on this subject with a clearer explanation?