From: google@holzapfel.biz   
      
   Interesting question.   
   I would assume, when IBM introduced their new series of Personal Systems, they   
   already had a couple of adapters ready to sell, in order to push their new   
   ecosystem and let everything shine.   
   The very first, not commercially available, must have been an early prototype   
   while developing the MCA bus and protocol itself, maybe a bus attached RAM or   
   ROM to develop and test the different transfer modes.   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)