ICM
Here is a map of the Swedish internet circa 1985 by Jörgen Städje
May 25, 2025 at 4:11amWeb
Show threadSDF.ORGMay 25, 2025
@icm so many PDP-10s.
Show threadLars BrinkhoffMay 25, 2025
@SDF @icm
Show threadJuan PerónMay 25, 2025
@icm So many nodes! Argentina was lacking even in the 90s. -> https://pixelfed.sdf.org/i/web/post/321874313617739776
Juan Perón (@[email protected])

ARPAC

Pixelfed
Show threadJanne MorenMay 25, 2025

@icm
I'm pretty sure that's incomplete. "Sunet" was (and is) the national university network; there's several connections to there in the diagram. And Sunet isn't the entire network, just the academic bit of it.

This seems to be a specific network interconnecting a few universities, and from the look of it, physics departments in particular.

Show threadRegionales Retro-RechenzentrumMay 25, 2025
@icm I get the bi-directional arrowed lines. But what do the uni-directional arrowed lines mean here?
Show threadLeif SamuelssonMay 25, 2025

@icm

My memory is a bit hazy, but I recall connecting to my work at Ericsson in Stockholm from the University of Michigan in early 1983 via telnet, in order to read email. I guess it might have been a dial-up, then?