26 Nov
2014
26 Nov
'14
6:55 p.m.
On Wed, Nov 26, 2014 at 6:27 PM, Rich Alderson
<RichA at livingcomputermuseum.org> wrote:
All KL10-based systems have RH20s. The front end
11/40 has an RH11, and one
disk (at least) has to be dual-ported between the front end and the -10.
All KL10s have RH20 internal channels except the KL10-A of the
DECsystem-1080. The 1080 was intended as a drop-in replacement for a
KA10 or KI10, so the system would already have external standalone
RH10 channels.
Similarly all KL10s have cache memory except the DECSYSTEM-2040. Cache
modules could be added to the -2040 turning it into a -2050.