Time Travel with a Modern Laptop

[Leo_Bloom]

A previous OP, by me, as it turns out: The knowledge of the phone phreakers: anything still “useful?”

Also on point, from What would happen if you played a software cassette on a tape recorder?

@Donnerwetter

In the 1970s and 1980s, there were radio and TV shows in which they distributed software by playing the software (i. e. the audio signal) on the air. Computer owners recorded the sound on audio cassettes and loaded the software onto their personal computers. Of course, this sounded horrible and I remember one TV show which played the noise during the closing credits.