Very interesting. I worked for ROCC in the late 70's and early 80's on these and other similar systems. If I remember rightly, these may be the first generation of Rocc's bit slice processor systems. Up until that point the systems were essentially DG processors with a lot of other OEM peripherals bolted on. Proprietary terminals were required. Of course I could be wrong about the model number... but here goes anyway. ROCC was in the office systems business and also big suppliers of Viewdata systems. These were often used as data entry and collation systems as front ends to corporate mainframes. Again, if memory serves me, the working title for these was 'Furnace Green' systems (named for the area near to the Crawley manufacturing plant where we built them). Typical configurations would be 1M of semiconductor memory, a 16bit processor, a uart board driving a Gandalf modem rack for Viewdata access (with 1200/75 modems), a "scanner" board driving data entry terminals and tape and disk controllers with a cold-start panel running across the front. I think these systems had Fujitsu winchesters in them but ROCC also sold them with 33MB and 66MB Ampex drives with removeable disk packs. Not sure about the vacuum drives - I remember Digidata 9 track drives front-mounted. Would love to see pictures if you can post them anywhere. Hope this helps. Make a lot of room for these as they are quite big with peripherals. Software will be a problem so try to salvage any tapes or disk packs that you can lay your hands on. Try to get hold of a programmer's panel as well - this will give you lights-and-switches access to the processor and devices. The instruction set will resemble the Nova instruction set. Regards, Dave --- Jules Richardson <julesrichardsonuk(a)yahoo.co.uk> wrote: __________________________________ Do you Yahoo!? New and Improved Yahoo! Mail - 100MB free storage! http://promotions.yahoo.com/new_mail