US air traffic control enters the 21st century, starts to abandon floppy disks
(www.theregister.com)
There was actually a benefit to being behind the curve on this.
The scheduling is done on modern machines, the actual flight control console is a glorified comms station with a very beefy audio recorder.
It's built to last, and to be as reliable as possible, while still being repairable by a skilled technician.
Any update needs to be as solid and reliable as what it replaces. That's the key, not being advanced or some shit.