Windows Vista notably didn’t make the cut — but [Andrew]’s Virtual OS museum has a good claim to being the most ...

This is a real operating system blast from the past.

With the "Virtual OS Museum", 80 years of computer history can be experienced directly in the emulator. The project makes historical systems usable with a click.

Andrew Warkentin's Virtual OS Museum packages 600-plus historical operating systems into a downloadable Linux VM, with Full and Lite editions for offline use.

Windows, Microsoft's flagship PC operating system, is now over forty years old and counting. When compared to the likes of, say, Android, this places Windows firmly in legacy platform territory.