We have a very expensive engraver at our shop, probably to the tune of idk, $20-30 thousand. It's a pretty large, heavy machine. We use it all day long for identification tags on cabinet doors, push button tags, serial ID tags. Absolutely critical to our business and the company that made it went out of business so if the windows 7 laptop that has the software ever dies, it becomes useless.
That’s probably a good idea. A decent amount of old programs can be run on modern equipment if you can create a good disk image and get it virtualized. There’s some edge cases with figuring out I/O and getting timing to work correctly, but I’d say most old tech can be made to work with a reasonable amount of effort.
If over $10k is on the line, there’s almost no reason to not at least try if you can afford the downtime.
I used to work at an airport and they had a internal tracking system for passengers with special requests (mostly for unaccompanied kids).
Anyway it's programmed in assembly and only works on one particular type computer. Even if it runs on a different era appropriate processor apparently this app won't work. So there was a buttload of old motherboards in a store room somewhere so that we could just swap the board out if the computer ever died. It's critical infrastructure that there is no backup for.
So basically I'm pretty sure the way the world ends is because somebody threw away an important floppy disk, and now a nuclear reactor is going into meltdown.