In article <m1GpByB-000IywC at p850ug1>,
     ard at p850ug1.demon.co.uk (Tony Duell)  writes:
 
*Anything* Evans & Sutherland is damn rare and you have some
 pre-workstation era equipment which is exceedingly rare. 
 Oddly nobody's picked
up on the I2S image processor/display systems yet.
 Are they really that common? I thpught they were almost like rocking
 horse manure... 
  I confess ignorance as to what the I2S image process/display
system
 even *is*.  I'm largely ignorant of the graphics hardware marketplace
 before 1988. 
 Basically, they're TV-scan-rate image displays for minicomputers. I have
 Unibus interfaces for mine, but the schematics also include diagrams for
 DG Nova and HP2100 interfaces IIRC.