Anything on Bigboard II?

[Dave Dunfield]

>I have what I think is the complete documentation set for the Ferguson
>BigBoard.  I don't know if it's the Bigboard II.  My board has
>'Ferguson' etched right into the board.   It's all in paper, schematics
>and the manual, and if nobody else has it, I could generate a copy
>and/or scan it in.

I too have an original Bigboard, and complete documentation set (also paper),
however I don't think this will be all that useful to the OP, as the BB2 is
quite a bit different.

To identify which BB you have:

BB1:
 - Large 4x8 array of 4116 RAMs
 - EPROMS are in a row going across (side to side) the board
 - Video is hardwired (no 6845 CRT controller)
 - Reads "The Furguson" in large letters, somewhat centered
   on the board, about 1/4 from one end.
 - No prototypeing area

BB2:
 - Single 1x8 row of 4164 RAMs
 - EPROMS are in a row going down the side (at the edge)
 - Contains 6845 CTR controller
 - Reads "BIGBOARD II" along one edge.
 - Has a prototyping area at one end.

There's lots of other differences, but these are the most visible
ones.

I have a photo of my BB1 on my site (look under "non S100 - CP/M").
Unfortunately I don't have information on the BB2 except for
advertisements and articals published in Micro Cornucopia.

Regards,
Dave
-- 
dave04a (at)    Dave Dunfield
dunfield (dot)  Firmware development services & tools: www.dunfield.com
com             Collector of vintage computing equipment:
                http://www.parse.com/~ddunfield/museum/index.html