[ih] History from 1960s to 2025

Lars Brinkhoff lars at nocrew.org
Thu Jan 1 01:26:40 PST 2026


Jack Haverty wrote:
> For anyone interested in the history, and/or in watching, or doing,
> historical reconstructions:
> https://obsolescence.dev/arpanet_home.html
> Much more to be done.  You probably could help.

I'm involved.  I'd like to say one thing we have observed running this
ARPANET reconstruction is how resilient and self organizing the IMP
subnet[*] is.  Of course, this is how BBN designed it and it has been
described in the literature and on this mailing list, but it's still
impressive to see in real life.  Well done IMP team!  This is part of
why we have embarked on this project, to allow pepole to not only read
about but also experience the feeling of using the technology.

[*] As many here will know, the term "subnet" or "sub network" was used
to refer to the IMP network; i.e. the stratum of the ARPANET providing a
network service to the hosts, minus the hosts themselves. This is
different from what subnet means today.


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