Digital Preservation Class

For my digital preservation class, I'm determining a bunch of info about files with no format extensions. I just got distracted by reading about the history of one of them, Harvard Graphics Show format. This software is so old that the publisher was just called "Software Publishing Corporation." A quote from one of the founders about creating the company:

"Fred [one of the other founders] has worked up a business plan to start a new company, the thrust of which is that software for these new PCs would be sold like music recordings. The computer is a "player" for the "titles" you could buy. People would buy many titles and use them with the player. The idea that the software titles could exist as a consumer market separate from the computer is pretty radical. Fred suggests I try to write something inmy spare time, and an Apple II is placed in the trunk of my car before I can change my mind."

https://muse.jhu.edu/article/240035