Win95 is only 30 years old and runs natively on some modern hardware.
Apparently there is important stuff still running in emulated PDP-11s, almost double the age.
It needs quite a few fixes to even run in a VM. But it can be done: https://github.com/JHRobotics/patcher9x
It needs quite a few fixes to even run in a VM. But it can be done: https://github.com/JHRobotics/patcher9x