On 05/16/2018 09:13 AM, jos via cctalk wrote:
> Visited an older collector recently, and in his shed he has a strange
> thing, labeled CDC, that somehow looks like a drum memory, but then
> again not ( drum looks too small to be usefull )
> The controller that goes with is a transistor based monster on
> countless small pluginboards.
> Pictures on ftp://ftp.dreesen.ch/Unknown_CDC_Stuff
Finally got enough patience to let the images load.
Pulling a guess out of the thin air or some other place, my guess would
be a CDC Digigraphics controller, which used drums for display refresh.