I sometimes have to support old harsware still used in live systems and sometimes it feels like digital archaeology trying to find. I feel a massive wave of relief if I see them running an old enough version of our software that I can tell them lol nope unsupported.

Oldest thing I have had to support this month is a card reader from the late 90s. Essentially a scanner which scans printed templates and identifies where someone filled in the form on it. The customer was putting the cards in upside down.

And you know what to look for, have the resources to find it, and can interpret the information when you find it.

Imagine having an Xbox, a router, a cable modem, an iPhone 11, the control board from a washing machine, and the central unit from a Tesla and trying to explain what each of them was without any other context, cables, chargers, etc...

Maybe not even a compatible source of electricity!

Don't even get me started on the ephemeral nature of software...