>>2522689

In the late '80's -1987 ish I knew a radio ham who used the packet-radio system to send and receive computer files via short wave radio. Computers were fairly simple then (Amiga and Atari and basic word processors ).There was no public internet then - probably just experimental academic networks like JANET but even then Radio Hams were exchanging data as computer files.

>>2525127

Packet Radio

https://en.wikipedia.or/wiki/Packet_radio

>>The most common use of packet radio is in amateur radio, to construct wireless computer networks. Packet radio uses the AX.25 (Amateur X.25) data link layer protocol, … adapted for amateur radio use. AX.25 was developed in the 1970s.