21 Mar
2007
21 Mar
'07
12:30 p.m.
On 3/21/07, Allison <ajp166 at bellatlantic.net> wrote:
Rather than dig out the manual I found this for the
KDJ11-A..
http://hampage.hu/dr/kdj11a.html#jumpers
While I agree that the jumpers are part of the bootstrap process, as
verified by a Digital micronote documenting the differences between
the KDJ11-A and KDJ11-B...
http://www.ibiblio.org/pub/academic/computer-science/history/pdp-11/hardwar…
... the KDJ11-A does not have an onboard boot ROM (but you do appear
to be able to set it to boot to an external ROM in some place other
than the default location in 22-bit address space, possibly to allow
it to work in a 18-bit backplane).
-ethan