Worked at a research institute which had a monitoring system for seismic activity that used PDP-11. Hardly ever knew how it worked, but the whole thing looked d

Worked at a research institute which had a monitoring system for seismic activity that used PDP-11. Hardly ever knew how it worked, but the whole thing looked damn cool with circular tape drives and LEDs all over. Very unlike the bland rack servers of today (no circular stuff).