From: Sean Caron
"Computer Engineering: A DEC view of hardware
systems design" by Bell
et al. offers a really nice look at the historical origins of all the
various PDP lines.
A 'must buy' for all DEC enthusiasts, IMO.
Another very interesting Bell et al. text that I enjoy
is "Computer
Structures: Principles and Examples" though it is (very) much less
DEC-centric.
There are two editions (at least - I have a '71 and an '82), and they cover
very different machines. E.g. the '71 has Whirlwind, the 7094, STRETCH, etc,
which the '82 doesn't. And of course the '82 has a whole bunch of later
machines which the '71 doesn't have - AMD29xx, various micros, Cray, VAX, etc,
etc.
Noel