Comment by anyfoo

Videonics DirectED, a video editing system, conveniently loaded its software from... VHS tape. Here are some details: https://twitter.com/foone/status/1325945997160165376 and apparently you can still buy it well-preserved as new old stock, complete with the VHS software tape: https://www.ebay.com/itm/124380109086

A little less crazy and more straightforward (software on audio tape was super common after all): Radio stations and vinyl discs that transmitted programs to the microcomputers of the time (C64, TRS-80 etc.) have quite a long tradition. Some examples:

http://www.trs-80.org/basic-over-shortwave/ https://www.youtube.com/watch?v=6_CZpFqvDQo&t=2s