This happens a lot more commonly than people might think. Not sure if this is still the case, but Florida DHSMV (motor vehicles department) used a Honeywell mai

This happens a lot more commonly than people might think. Not sure if this is still the case, but Florida DHSMV (motor vehicles department) used a Honeywell mainframe as recently as a few years ago, and the word around Disney World Ride & Show was that the parades in Magic Kingdom ran on a DEC PDP-10 as recently as the late 1990s and early 2000s. Both of these may no longer be true, but I haven't checked in awhile. Both of them might still be true...