I believe that Super Fast is telling us that every existing PC owner is using a modern filing system. And that we've left behind cross-link prone systems like FAT. It is common sense to know that not everyone in the world has a PC.
Most, but not all, computing devices crash. There have been times I used to run my Apple II series computer for months on end without having to reboot or power-cycle the machine. Things were very simple back then. The operating system was typically around 24k bytes in size, this encompassed a BASIC interpreter, a monitor (not a display device, but ML/assembly monitor), and a program to control the disk drive(DOS 3.3). This machine harks back to a time when one single person could know everything there is to know about the system. Heck, the system *was* designed by one person. Yep. Woz did both the hardware and software for the early 2 series.
Did you know that the above paragraph is 2X longer than the firmware on the disk drive controller of an Apple 2 series computer? Ha! As far as I can tell, this little bit of firmware has never crashed ever. Nor have any of the Atari VCS game consoles. They are simple enough to where they either work or they do not work.
Well, I've had my copy of XP running for weeks on end. Sometimes suspending or hibernating it from time to time. But I don't need to reboot it much. On the other hand, I'd always difficulty with win95/98. Constantly restarting those systems. Memory leaks and lockups - all due to sloppy hybrid 16-bit code. I had the most trouble when using memory intensive software or gaming things. Stuff that swapped screen resolutions and paged out to the HDD. Pack FAT into the mix, and sure you've got crosslinked files and disk inconsistencies all over the place. Once I got into using NTFS over the past 15 years, I can count the number of corrupted files I lost on one hand.
Stagnation?? Bad choice of words. More like a frustration and inertia. Businesses are going to do their best to ensure ROI. And changing operating systems every 2 years is not the way to go here. Not even for the home user. Much of this rapid pace of introducing new OS'es comes from a need to make profit. For me, there is little benefit to upgrade presently.
Now:
I have very little experience with Windows 8. Certainly not enough to condone or condemn it. I just condemn the constant upgrading process and ensuing hassles. Much of my clientele is running XP and 7. The most common things I get asked about when a user wants to get on 8 bandwagon is -
1- What's the anti-virus like? Just be sure MSE is running and you're fine.
2- Where's the start menu? In this case I refer them to any number of 3rd party utilities that restore that functionality.
3- Will my old applications run? My answer is most likely yes, in the event they don't, upgrade them, or use a virtual machine running XP or 7.
4- What about my printer? Will it work? I advise them to try it, check with the mfg. for drivers if needed.