> > I was born in 1974 and I know the difference of DOS and command prompt. Yes, I'm 41
> > years old...
> > I started coding in BASIC around 1987 for the MSX1 computer.
> >
> > Everything "DOS" back then meant no graphical interface.
>
> No it didn't. Back then "DOS" meant "library of disk I/O routines" and often didn't
> include a UI at all. If you were lucky it might give you some extra BASIC commands
> for loading programs from disk, but some S100 DOSes required you to bootstrap the
> program some other way (maybe paper tape, front panel switches, or the machine code
> monitor). The command-line BASIC interfaces existed independently of the DOSes, and
> there were multiple DOSes for each system from different drive vendors with varying
> levels of (in)compatibility.
>
> tl;dr you would've been laughed at back in the day for calling command-line
> interfaces in general DOS, as the term "DOS" referred to disk I/O libraries, like
> Apple DOS, CBM DOS, etc.
I'm sorry, you're mistaken. By 87 DOS was multitasking, doing advanced memory management etc. It didn't have a GUI, of course, but some were available for it. No-one thought of it as only a set of "disk I/O routines", as that would have been wholly inaccurate. That would be akin to saying Windows is just a way of drawing pictures on the screen.
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