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From: Clem Cole <clemc@ccc.com>
To: Ron Natalie <ron@ronnatalie.com>
Cc: tuhs@tuhs.org
Subject: Re: [TUHS] Unix NCP protocol stack for ARPANET
Date: Sun, 24 Oct 2021 15:28:34 -0400	[thread overview]
Message-ID: <CAC20D2MdBOceMwzRQMTcjb76NYPVBn3wP+NcRtMYqoCVZuy=1w@mail.gmail.com> (raw)
In-Reply-To: <em8d652e31-7445-4d63-a1bc-2ca236bbcc79@alien>

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Ron. Where did the back ncp come from?as I said I never saw it and we tried
to find one.  Same for an IP implementation.  That's why we wrote one.  We
were 3coms first customer and I somewhere have the mailing evenlope marked
the 32 of December because they had a VC payment dependent on delivering
before end of year.

As for 11s. Yes that is true.  A lot of them front ended large systems as
Bob pointed out but many were self supporting as you note.

On Sun, Oct 24, 2021 at 2:41 PM Ron Natalie <ron@ronnatalie.com> wrote:

> There were definitely as many PDP-11's (most running UNIX) as there were
> DEC 10s in the glory days of the Arpanet.   VAXes only rolled out toward
> the end of the NCP era.
>
> However, the last NCP host table shows this statistic for DEC machines on
> the NCP Arpanet
>
> VAX (UNIX):  58
> VAX (VMS):  19
>
> PDP11 (UNIX):  59
> PDP11 (RSX): 6
> PDP11 (MOS):  11
> PDP11 (MINITS); 10
>
> PDP10 (TOPS-20):  40
> PDP10 (TOPS-10): 7
> PDP10 (TENEX):   22
> PDP10 (ITS):  4
> PDP10 (WAITS): 3
>
> I had all but forgotten about Local Host / Distant Host / Very Distant
> Host 1822 protocols.    I remember that BRL had a PDP-11/40 running ANTS
> (ArpaNet Terminal Server out of University of Illinois).   It got replaced
> by an 11/34 running UNIX when the Arpanet went to long leaders New Years
> 1981.
>
-- 
Sent from a handheld expect more typos than usual

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  reply	other threads:[~2021-10-24 19:29 UTC|newest]

Thread overview: 12+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-10-24 16:16 Lars Brinkhoff
2021-10-24 17:24 ` Clem Cole
2021-10-24 18:32   ` Ron Natalie
2021-10-24 19:28     ` Clem Cole [this message]
2021-10-24 19:28     ` Warner Losh
2021-10-24 20:25       ` Clem Cole
2021-10-25  9:26   ` Lars Brinkhoff
2021-10-25 16:50 Paul Ruizendaal
2021-10-25 19:04 ` Lars Brinkhoff
2021-10-25 18:50 Noel Chiappa
2021-10-28  9:41 ` Lars Brinkhoff
2021-10-26  8:06 Paul Ruizendaal

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