Being able to write on floppies also opened the door to somebody else making a
floppy disk, and then selling it to you. You could put this thing in your
computer, and suddenly you're running a program that you didn't make, but that
you bought.
And that's, again, kind of a peculiar thing. Buying a paint set doesn't really
open the door to enjoying somebody else's art. They're very different things.
Buying a piano doesn't help you play mp3s. These are, in most circumstances,
very different things.
But in the computer, there's this kind of pun. And that led directly to a
consumer software industry. That was kind of new thing. There had been
commercial software for many decades, for banks and institutions and the
military, but this was the first time that software was being sold to the mass
market.
So it led to a consumer software industry, it led to a class of professional
programmers, which led to the assumption that programming was a profession. That
learning to program was vocational training, and what you did with your
programming skill was, you made things to sell.
If you look at modern programming tools like Xcode and Visual Studio, they're
much more polished than what we had on the Apple II, but they're all built with
the assumption that you're making things to sell to other people, rather than
making things for your own needs.