PDP-8s and -10s

[Paul Koning]

>>>>> "William" == William Donzelli <aw288 at osfn.org> writes:

 William> Speaking of PDP-8s, and now PDP-10s - a thought that passed
 William> my mind: Is there a good reason why DEC did not use the
 William> PDP-8 architecture in the PDP-10, for proper channel
 William> controllers? Cheap, versatile, sixbit, and when the KA10
 William> came out, already designed. I would have thought it to be an
 William> obvious "drop-in" solution.

You mean, analogous to CDC's PPUs?  One guess: that wasn't an option
on the PDP-6, and the 10 is the compatible successor to the 6.

   paul