Earlier quoted context omitted.
Back in the very old days, early 1980s, magazines like Byte would include games in the magazine in the form of code you had to manually type in and save. The ones I did were multiple pages of pure HEX. Later, magazines would ship with floppies that had the free software on it.
Wow, this was not a thing where I grew up. I never even saw a real pc until I was in uni. That sounds awesome. Thanks for explaining. EDIT: Still totally fascinated by this. I asked my husband because I remembered that he had a much-beloved Spectrum when he was a kid and sure enough, he had digitized Your Sinclair issues on his iPad and he showed me several examples of games in Basic and hex. Super cool.
https://www.filfre.net/2011/06/the-trash-80-part-3/
Have been following it for years and would recommend reading it all the way through. Maybe even get an idea for the next project :)