We also downloaded software from our TV's in the UK via the BBC micro's Prestel adaptor.
A much more mainstream way of sharing software was source code listings - typically BASIC - in magazines like Dr. Dobbs, that you would type in yourself.
I wonder how many of today's youth are also aware of the bulletin board systems (BBS) that existed pre-internet - standalone servers that you would connect to via modem to socialize and/or download files using protocols like Kermit, and X/Y/Zmodem.
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