3 ms·
If the tip of the iceberg is automatic watering of gardens, the iceberg is nuclear power plants designed to run on PDP-11s.
by sverige 9y ago
If the tip of the iceberg is automatic watering of gardens, the iceberg is nuclear power plants designed to run on PDP-11s.
- zeckalpha 9y agoPDP-11s are 16-bit computers...
- sverige 9y ago...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 http://mapps.l3t.com/candu-plant-control-systems.html
- davemp 9y agoNuclear power plants run critical systems on mostly analog and sometimes pld devices (much easier to formally verify). They also generally don't care about date-time and have rigorous testing/verification. Nuclear PP are not something to worry about for a 2038 bug. It's the industries that don't employ traditional engineering practices that are worrisome.