On Oct 1, 11:43, Brian Hechinger wrote:
> On Wed, Oct 01, 2003 at 10:16:13AM -0600, Kevin Handy wrote:
> >
> > The CPU card should be almost identical to an 11/83 system.
> > Main difference is the speed of the clock, iirc.
>
> uhm, i thought a /73 was a dual width card and didn't have any serial
or
> anything on it. am i confused?
Yes and no. There is a dual-height version of the 11/73 (KDJ11-A)
which carries the processor, MMU, FPA, cache control, etc, but no
bootstrap, SLUs, or line-tme clock. It was commonly sold as an OEM
product or as an upgrade to 11/23 systems. There is also quad-height
version (KDJ11-B), the same board as as the 11/83, but (if sold as an
11/73) it has a 15MHz crystal instead of 18MHz, and would originally
have had different bootstrap ROMs.
--
Pete Peter Turnbull
Network Manager
University of York
Received on Wed Oct 01 2003 - 15:33:07 BST