Which RT-11 for an 11/03

Jay West jwest at classiccmp.org
Thu Mar 10 13:46:53 CST 2016

The OP was specifically asking about RT11 on a Heathkit H11, not "just any
ol' LSI-11".

Very possible I'm completely incorrect here, but I thought I recalled that
DEC gave heathkit a special price on H11 boards and OS license and such - so
that Heathkit could produce the system for a price that the home user could
actually afford back in the day. And because DEC was highly concerned that
someone would buy a card or item from Heathkit and use it in a "real DEC
PDP11" (business channel) where it would cost a lot more money normally -
they did *something* to introduce an incompatibility of some sort between an
H11 and a "real" pdp11?


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