PDP-11/20 vd one that just says pdp 11 what are the date differences?? OEM?

Pontus Pihlgren pontus at Update.UU.SE
Mon Feb 22 06:14:33 CST 2016

On Mon, Feb 22, 2016 at 07:07:35AM -0500, william degnan wrote:
> I have an original 1969 PDP 11 brochure.  In it there are two PDP 11 model
> configurations to choose from; the 10 and the 20.  For me at least this
> throws into question the whole "...the 10 first came out with the 5
> in1972..." story everyone repeats over and over, unless one must have a
> "10" printed on the console in order to accept a computer model's
> existence.  DEC must not have sold many original 10 models, and/or everyone
> who has a 10 does not realize that's what they have.  But, facts are facts
> and the brochure and price guide I have is what it is.  Hoping some here
> will check for themselves and consider it misleading at least to simply
> call the original PDP-11 a "pdp 11/20 without the nameplate".  In short,
> the original bare-bones pdp11 was the pdp-11 10, the fully-equipped version
> was the pdp-11 20.

I will definitely correct myself in the future. It would be interresting 
to see if anyone has a "numberless" machine with the "M11-10" 
designation printed on the back, to see if any was actually delivered 
(and I wouldn't be surprised if there was).


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