Eric wrote:
> Has anyone ever heard of such a thing. I dug out a manual and a book on
> the system, and remember
> working on one years ago. The books are dated 1972-3. The company is out
> of New Jersey. Anyone one know anything about the D-116 system or about
> the fate of the company: DCC?
The D-116 is essentially a jumbo-chassis DG Nova 830 clone; like the
similar offering from Keronix it has a programmatic option to double
the size of the address space (from 32KW to 64KW) by limiting indirection
to one level (second and subsequent levels of indirection in the Nova
were indicated by having the high bit of the intermediate word fetched
set, thus effectively limiting addresses to 15 bits)
I have no idea what happened to DCC; Keronix (who manufactured far
nicer memory boards for the Nova than DG) exited the business when their
manufacturing plant burned to the ground, an act sometimes referred to
as the consequence of "DeCastro Lightening"
I have a D-116 sitting in the projects pile just now. It looks like an
ugly Nova, right down to the incredibly poor mechanical engineering.
Keronix was much more original and did nice work in the MechE department,
including the ability to access the card cage without having to pull the
machine out of the rack.
--
Chris Kennedy
chris_at_mainecoon.com
http://www.mainecoon.com
PGP fingerprint: 4E99 10B6 7253 B048 6685 6CBC 55E1 20A3 108D AB97
Received on Mon May 07 2001 - 09:20:46 BST