[Info-vax] Dave Cutler, Prism, DEC, Microsoft, etc.

[Rich Alderson]

glen herrmannsfeldt <gah at ugcs.caltech.edu> writes:

> Rich Alderson <news at alderson.users.panix.com> wrote:

> (snip)

>> 18 bit: PDP-1, and PDP-4/-7/-9/-15.  The latter were upwards code
>>        compatible, but not the PDP-1.  That's 1.5 in my count.

>> 12 bit: PDP-5, PDP-8, -8s, -8i/l, -8e/f/m, -8A.  That's another 1, for a
>>        total of 2.5.

>> 36 bit: PDP-6, PDP-10 = KA10, KI10, KL10, KS10.  That's another 1, for a
>>        total of 3.5.

>> 16 bit: PDP-11 in all its forms and variations.  That's another 1, for a
>>        total 4.5.

> So you don't count VAX as a separate architecture, or not a PDP?

Since all this started with M. Mezei saying something about "the PDP", the
VAX was not relevant to the argument.

The VAX, MIPS, and Alpha architectures were all used in systems by Digital,
but none of them were called "PDP-<number>" in their released forms.

-- 
Rich Alderson                  "You get what anybody gets. You get a lifetime."
news at alderson.users.panix.com                           --Death, of the Endless