3rd Party OS "Personality" Boards  

 

  DDT OS Board ROM's

  

 

 

 

Dunion's Debugging Tool OS Board

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Thanks to John Hardie of the VGHM the mystery of this previously unknown board has been solved.  He has an exact same board with the ROM's marked DDT. Which is short for Dunion's Debugging Tool.  Designed by Atari employee Jim Dunion, this was a must have tool when writing code as it provided the coder with an assortment of powerful features that aided in the debugging and coding of software.

There is still the open mystery of who made these boards and what there origins are.  Perhaps made internally within Atari by Atari employee's to help each other or perhaps done outside of the company on the side by an employee or friend of one.  Hopefully more information will be found.

 

If anyone has additional information on this board, please contact Curt to discuss:   CLICK HERE

 

Updated 3/19/2019