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by zeckalpha 3215 days ago
PDP-11s are 16-bit computers...
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...which control at least one plant in Canada (though recently it was replaced with an emulation.)

And apparently they solved the 16-bit data problem, but maybe not the 32-bit date problem.

"A current generation DCC system resides at L3 MAPPS' main Montreal, Canada facility and is used to provide support to all participating COG members until 2035."

http://mapps.l3t.com/candu-plant-control-systems.html