From Computer History Wiki
Jump to: navigation, search


Since hundreds (literally) of DEC manuals, books, etc use "PDP-11/10" to refer to the one with the KD11-B processor, not the 'marketing artifact' from 1969 with the name "PDP-11/10" and a KA-11 CPU, and since there are many physical machines still extant with "PDP-11/10" on them, and a KD11-B inside, I think it would be very misleading to show the PDP-11/10 as having been introduced in 1969. We should put it back the way it was, and include a footnote in small print to show that the name had been recycled from the earlier one. Jnc (talk) 23:05, 22 February 2016 (CET)

Ah, ok. What about the /20, is the /20 in the 1969 ad what's generally known as /20? (Edit: I've made a clumsy attempt. We don't seem to have a References template in this wiki btw- -Tor (talk) 08:38, 23 February 2016 (CET)

Sorry, I'm not sure what ad you're referring to? The discussion on CCTalk was prompted by a DEC PDP-11/20 price list from December 1969. (We have also discovered a few other mentions of that 'PDP-11/10'.) The PDP-11/20 in the price list, and the other places the 'PDP-11/10' is mentioned, is definitely the machine we now know as the -11/20. Jnc (talk) 12:51, 23 February 2016 (CET)

Ok, yes, the price list was what I was referring to. -Tor (talk) 12:53, 23 February 2016 (CET)


The PDP-11/03 is rated 0.5 VUPs - must be a typo, rather 0.05 VUPS Vaxorcist (talk) 20:28, 15 July 2022 (CEST)


I left out SITS, IOElev, MINITS, etc because they never got much/any traction outside MIT. (MERT got a pass on that standard because although it never escaped from Bell, it was influential in micro-kernels, because it was deployed and did real work, showing that that approach worked.) ELF, MOS, etc were widely used - MOS ran most of the routers in the Internet for years. If we listed every two-bit PDP-11 OS, the list would be a mile long! Jnc (talk) 13:59, 8 November 2022 (CET)

On the other hand, there are links to each and every PDP-11 Unix research edition, so I thought adding some more was ok. Larsbrinkhoff (talk) 18:14, 8 November 2022 (CET)

"Personal" PDP-11s missing

The series of PDT-11s and Professional 300 is missing. Vaxorcist (talk) 16:16, 24 May 2023 (CEST)

I was vaguely aware of that. Feel free to do them (they don't interest me). Jnc (talk) 17:39, 24 May 2023 (CEST)

PDP-11 diagnostic software

Isn't there any page on the huge lot of PDP-11 diagnostic software modules? Or am I too stupid to find it? Vaxorcist (talk) 22:07, 25 April 2024 (CEST)

No, I never bothered to write up any DEC PDP-11 software (other than a stub for XXDP); other people did a few (e.g. RSX-11, RT-11, etc). I never used any; so I was not interested in any of it. Feel free to write up all of it! Jnc (talk) 01:42, 26 April 2024 (CEST)