[ih] IMP Installation Schedule / SDC IMP

[Darius Kazemi]

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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