From: mspangler@ifiber.tv   
      
   On Friday, June 30, 2023 at 2:52:54 AM UTC-7, M G wrote:   
   > Hey,    
   >    
   > I have seen that the Apple //c and //c+ are exposing some ROM content in the   
   area $C5XX and $C7XX but there are no slot cards assigned to these slots so   
   what is the functionality and purpose of these slots?    
   >    
   > Thx   
      
   C5XX is the smartport so you can use 3.5" drives although I think is it   
   Unidisk 3.5 only.    
      
   C7XX is "it depends" If I remember on the original //c it was to allow a boot   
   from an external 5.25 drive. Then it was supposed to be for localtalk support,   
   but that never materialized so it became either the mouse or the memory   
   expansion card support.    
      
   Apple moved the ROM code around on the //c very freely since they didn't have   
   to worry about an expansion card compatability.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)