[ih] IMP Installation Schedule / SDC IMP

[Darius Kazemi]

Yes I do!

An IMP was installed at Tinker on Feb 16, 1972. The note for that IMP says:

"Originally shipped to Tinker; removed to BB&N on 02/02/73; changed to a
TIP and shipped to UTAH on 8/31/73."

An IMP was installed at ETAC on November 30th, 1971. The note says:

"Originally shipped to ETAC; moved to Mc Clellan 3/10/72; moved again to
Xerox 9/26/72."

RFC-1000 names ETAC as the USAF Environmental Technical Application Center,
which in 1971 began "providing weather data for the ARPA Network".

So it looks like an IMP spent a year at Tinker and six months at McClellan.

-Darius

On Mon, Jul 22, 2019 at 12:46 PM Steve Crocker <steve at shinkuro.com> wrote:

> Darius,
>
> Interesting!  Might you also have data on when IMPs were installed and
> removed at Tinker AFB near Oklahoma City and McClellan AFB near Sacramento?
>
> Thanks,
>
> Steve
>
> Sent from my iPhone
>
> On Jul 22, 2019, at 3:18 PM, Darius Kazemi <darius.kazemi at gmail.com>
> wrote:
>
> Hi,
>
> I've been reading the list archives for a while (it helps for the early
> RFC blog project
> <https://write.as/365-rfcs/365-ietf-rfcs-a-50th-anniversary-dive> I'm
> doing), but I didn't have a reason to join and post until today.
>
> I saw Karl Auerbach's message from back in March asking about the SDC IMP,
> along with Alex McKenzie's answer.
>
> Karl Auerbach's question:
> http://mailman.postel.org/pipermail/internet-history/2019-March/005175.html
> Alex McKenzie's answer:
> http://mailman.postel.org/pipermail/internet-history/2019-March/005174.html
>
> I spent four days at the Charles Babbage Institute last month and among
> the records I was looking at were the library's collection of Alex
> McKenzie's documents. In this collection I found a folder called
> "Installation History of first ARPANET Interface Message Processor (IMP)
> and Terminal Interface Message Processor (TIP) 1969 - 1976" (CBI record
> <https://archives.lib.umn.edu/repositories/3/archival_objects/49539>).
>
> The document is a four-page document dated October 1977 that lists every
> known IMP/TIP at the time, when it was installed, and its history of moving
> between sites (if any).
>
> What the document says is that the SDC IMP was installed on April 20th,
> 1970. A footnote says that it was there until 1976, when it was moved to a
> site called ISI, which I assume is the USC Information Science Institute.
> It appears that by 1977 it had been reassigned a Network ID Number of 52.
>
> I have photographs of the IMP installation schedule and if anyone is
> interested I can send them along. I don't know what the etiquette of
> posting them to this list is; I currently only have clearance from CBI for
> private usage but it's unclear to me whether this (private) list counts as
> private usage.
>
> -Darius
>
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