Other multitask GUI within 1 MB system software?

[desiv]

That depends also on how you define multitasking.
You could run multifinder on the Mac from floppy.
That being said, I wouldn't call a Mac with a single floppy actually useful :-) , but it could do it...

desiv

[desiv]

But is Windows 3.1 an operating system (original question asked for an OS)? Wasn't DOS the operating system with Windows a DOS interface sitting on top at that time?

Yeah, but that starts to get into semantics that not everyone agrees on.
What's the OS?  What's the GUI?  etc...

Since Windows 3.1 on top of DOS allowed some task switching, I think it qualifies on that level..

But I don't believe Win3.1 was close to being under 1M, and I'd like to see a doublsespaced floppy actually hold enough of it to run, including DOS.


As kual as QNX is, being over 1M, that one doesn't fit the OP either.

SymbOS appears to have a 1M version for DL and that looks really kual.
Of course, it wasn't available back in the day, but it's pretty impressive.

Some guys on atariage are working on a new OS for the 8-bit Atari's that looks pretty incredible.  I can't remember if it has any multitasking in it tho.

Very neat and efficient stuff..

desiv

[desiv]

http://web.archive.org/web/20030810114734/http://www.wimborne.org/richard/techstuff/windows31_on_a_floppy/

OK, after reading that, I feel better.
It was doable, but so gutted as to not really be usable as an OS.
It's REAL mode, not protected, so no multitasking of any kind..

So I consider that in the "really neat hack" arena, but it's not the Windows 3.1 OS in a floppy..  not really..

And it's a 1.44M floppy, so not in the OP's under 1M requirement.

It is a REALLY neat hack tho.. ;-)

desiv