this post was submitted on 23 Dec 2024
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Showerthoughts
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"The internet" is a > layer 2 technology, radio and TV transmission would all be layer 2 if you applied the OSI model. And layer 2 tech has rapidly changed since the initial creation of the internet.
ARPANET started off on dedicated phone lines essentially (and maybe microwaves). When normal people started using it it was mostly done on their actual phone line with a modem. Then we started getting tech like ISDN, T1, DSL, cable and, Fiber. Nevermind internal networking which went through a wild ride in the 90s before setting on the twisted pair that we have now.
https://youtu.be/Hvqv9QcTcfA?t=93 I mean just look at how comically large an original "thicknet" cable was. It was like an inch thick.