Spotted in a museum:
It’s been quite a while since BIOS boot sequences started with the floppy drive. Combined with a CMOS backup battery failure, I’d say this poor PC has been chugging along for two decades.
On another floor:
Isolating a Windows kiosk from the Interwebs is an excellent design principle, but Windows Update really wants to phone home. The kiosk’s presentation ran Adobe Flash 10, so it’s been confined for maybe a decade.
Looks like it’s time for another fundraising drive to replace the PCs with Raspberry Pi controllers. The real expense, of course, goes into rebuilding the presentations using whatever tech stack is trendy these days.
The Smell of Molten Projects in the Morning 
It’s about time to replace the CR2032 and electrolytic capacitors.
https://www.extremetech.com/extreme/50450-gigabyte-launches-solidcapacitor-motherboard-line
Aye!
The last ones I’ll ever need: “an average lifetime of 23 years”. [sigh]