[ih] inter IMP hackery [was Recently restored and a small ARPANET was run using simulated IMP hardware, ]

Lars Brinkhoff lars at nocrew.org
Mon Sep 7 12:43:37 PDT 2020


Jack Haverty wrote:
> While I was in Licklider's group at MIT, Marc Seriff implemented a
> "SURVEY" system that periodically (every 15 minutes) probed ARPANET
> hosts and recorded their up/down status.

Seriff wrote to me about SURVEY:

 | For a few days, the whole ARPANET was pissed at me since, in those
 | days, all the systems logged every connection attempt - typically to
 | a model 33 teletype machine sitting in front of the PDP/10 or
 | whatever.  A decent system since the few computers on the network at
 | the time weren't likely to get more than a few connections a day.
 | All of sudden, I'm poking them once a minute or so.  System managers
 | would come in in the morning to find paper piled behind the teletype
 | and, frequently, ink ribbons that had been torn to shreds!


> At the time, Lick's vision included providing such data services as
> core network services.   The DataComputer was the obvious place to
> store Data.

I wonder where all that data went when the DataComputer ceased
operations in 1980?



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