Dear all,
I highly recommend you to read this article of Steve Crocker if you want to get more technical insights about the beginnings of the Internet ;-): https://spectrum.ieee.org/tech-history/cyberspace/todays-internet-still-relies-on-an-arpanetera-protocol-the-request-for-comments
Have a nice day!
Kindest regards,
Matthias
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Ing. Mag. Matthias M. Hudobnik