> From: Bill Degnan
> 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 in 1972..." story everyone repeats over and over
This is a known 'artifact' in PDP-11 history. DEC originally used the /10
designation for a cost-reduced 11/20. They never produced any, AFAIK - I'm
pretty sure (without checking) that machine was re-labelled the /15, and those
_do_ exist (I used one BITD).
According to DEC documentation, the /15 has a KC11 processor, not the KA11 of
the /20 (although I've never been able to find out much about the KC11 - I
suspect it was a slightly modified KA11); the main functional difference
listed is that it only supports one level of interrupt, not four; power-fail
re-start is also optional, not standard.
I have this bit set that both the /15 and /20 could be had with the 'simple'
front console, that that wasn't the differentiator between them.
The later /5-/10 pairing does indeed exist - I have one of each. They are
absolutely identical except for the printing on the faceplate.
Noel
In a message dated 2/22/2016 5:16:27 A.M. US Mountain Standard Time,
billdegnan at gmail.com writes:
On Mon, Feb 22, 2016 at 7:14 AM, Pontus Pihlgren <pontus at update.uu.se>
wrote:
> 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).
>
> /P
>
Here is the doc in question. Note is says 11/10 and 11/20
hahahha!!!! turnkey console on 10
programmers console on 20
in brochure!
Ed#####
http://vintagecomputer.net/digital/PDP11-20/PDP11_Price-List_19691215.pdf
--
@ BillDeg:
Web: vintagecomputer.net
Twitter: @billdeg <https://twitter.com/billdeg>
Youtube: @billdeg <https://www.youtube.com/user/billdeg>
Unauthorized Bio <http://www.vintagecomputer.net/readme.cfm>
I have the regular Fleet System 2 bur I need a copy of Fleet System 2+
instead of blur the stickers are yellow there a 3 disks. I am hedding to
the dr and I will post the manual I got in the unopened box. so pics
coming up later today does anyone have a copy of the 3 Fleet System
Sisks they could email .e I have many things to trade I will post that
stuff later today . God Bless Yall!
In a message dated 2/22/2016 5:14:40 A.M. US Mountain Standard Time,
pontus at Update.UU.SE writes:
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
/P
Well I owned one in 1980 that just said only PDP 11.... but so
long ago do not remember the label
when I got a chance to swap some stuff for the 11/20 for the
museum I jumped at it.
In a message dated 2/22/2016 5:07:40 A.M. US Mountain Standard Time,
billdegnan at gmail.com writes:
On Feb 22, 2016 4:39 AM, "Paul Birkel" <pbirkel at gmail.com> wrote:
>
> Agreed; I neglected to mention that mine also is marked in that manner!
> Seems like DEC had ramped up to about 15-20 machines/day by
mid-September.
>
> Guess that the front panel graphics guys "didn't yet get the memo". Or
> maybe someone was hedging their bets against an ignominious sales failure
in
> the initial front panel production?
>
> -----Original Message-----
> From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of
Christian
> Corti
> Sent: Monday, February 22, 2016 4:32 AM
> To: General Discussion: On-Topic and Off-Topic Posts
> Subject: RE: PDP-11/20 vd one that just says pdp 11 what are the date
> differences?? OEM?
>
> On Mon, 22 Feb 2016, Paul Birkel wrote:
> > My PDP-11 is labeled as "S-386" and dated 9/23/70, which I guess makes
> > it fairly early in the production run (but I do wonder what the
> > initial manufacturing rate was given the relative riskiness of this
> > new architecture). Anyone have S# and dates for "plain 11" vs.
> > 11/20-marked for comparison?
>
> Our PDP-11 is labeled as "S-308", the date is 9/16/70. And I think they
> called it PDP11-20 from the beginning, as the model number above the
serial
> number says "M11-20"
>
> Christian
>
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.
Why DEC temporarily dropped it's pdp-11 10 model from the product line and
>from newer price sheets I can't say. Certainly the "10" was gone when DEC
rebranded their front nameplates to read "pdp 11/20". I believe the 1969
brochure is on bitsavers, or I think my website has a copy you can
download.
Bill Degnan
twitter: billdeg
vintagecomputer.net
I had heard a rumor the 10 was an oem version!?
does that make any sense Bill?
Ed#
Hi everyone. I'm hoping that one of the VAX experts out there can help me
figure out how to get my 3100 booting. I managed to cobble together the
necessary cabling and was able to run a "TEST 50" from the serial console.
Unfortunately my Google-fu isn't sufficient to help me figure out what the
results mean. Here is what I'm getting below. Any ideas where my problem
lies?
>>> test 50
KA42-A V1.3
ID 08-00-2B-16-58-20
MONO 0000.0001
? CLK 0000.0005
NVR 0000.0001
? DZ 0000.4001
00000001 00000001 00000001 00004001 00000000 00000000
MEM 0010.0001
01000000
MM 0000.0001
FP 0000.0001
IT 0000.0001
SYS 0000.0001
8PLN 0000.0001 V1.3
NI 0100.0001
>>>
Thanks,
Bryan
what was the break point as far as manufacture dates between the 2?
Ed#
In a message dated 2/22/2016 1:25:31 A.M. US Mountain Standard Time,
pbirkel at gmail.com writes:
Which has always struck me as a bit odd, since the PDP-11 family was
designed to be just that, a family. So you'd think that "marketing" would
have kept that in mind when designing the first front panel label ...
-----Original Message-----
From: cctalk [mailto:cctalk-bounces at classiccmp.org] On Behalf Of Pontus
Pihlgren
Sent: Monday, February 22, 2016 3:12 AM
To: General Discussion: On-Topic and Off-Topic Posts
Subject: Re: PDP-11/20 vd one that just says pdp 11 what are the date
differences?? OEM?
The PDP-11/20 was the first PDP-11. I believe the number was added when the
other models came out, to discern them.
/P
On Mon, Feb 22, 2016 at 03:03:17AM -0500, COURYHOUSE at aol.com wrote:
> PDP-11/20 vd one that just says pdp 11 what are the date
differences??
> OEM? was one version for customer and one for OEM?
> THANKS IN ADVANCE
>
> Ed#
>
>
Ok then it definitely defines the date then of a unit.
eons ago when I first had started compute exchange in Phx we had one
that just said pdp -11 as I remember it came from Sandia Labs.
Currently we have a 11/20 Ed# smecc.org
In a message dated 2/22/2016 1:12:16 A.M. US Mountain Standard Time,
pontus at Update.UU.SE writes:
The PDP-11/20 was the first PDP-11. I believe the number was added when
the other models came out, to discern them.
/P
On Mon, Feb 22, 2016 at 03:03:17AM -0500, COURYHOUSE at aol.com wrote:
> PDP-11/20 vd one that just says pdp 11 what are the date
differences??
> OEM? was one version for customer and one for OEM?
> THANKS IN ADVANCE
>
> Ed#
>
>
I've been looking for one of these for ages- I have a lead on a TeK storage
tube terminal and will make a trip for it as soon as I can, but I'd love to
find one of the computers.
I'll pay for one in any condition and shipping from anywhere I can find
one. Does anyone have a lead? Please let me know...
Thanks,
- Ian
--
Ian Finder
(206) 395-MIPS
ian.finder at gmail.com