I just got the Hardware Reference Manual on ebay for the CDC Grid Display Subsystem (Publication No. PD82134500 September, 1969, PD-1-0). This doesn't appear to be on bitsavers; I'm not sure but I haven't stumbled across it in the pdf/cdc folder. The manual is a photocopy of an original and will be scanned for bitsavers. GRID stands for Graphical Interactive Display, making "Grid Display Subsystem" contain a redundant "Display" when expanded. This looks like an interesting system with a builtin console and enclosure containing all the graphics processing hardware. Has anyone used one? Anyone got any photos? The manual just has diagrams. Included with the manual was: - a short whitepaper on the "GRID Operating System (GOS)", marked "Robert Gammill 9/11/70", 13 pgs. - "GRID* USER MANUAL", John Walker, David Robertson, Robert Gammill, National Center for Atmospheric Research, Boulder, Colorado 80302, December 1971, 36 pgs. -- "The Direct3D Graphics Pipeline" -- DirectX 9 draft available for download <http://www.xmission.com/~legalize/book/download/index.html> Legalize Adulthood! <http://blogs.xmission.com/legalize/>