Some fun photos from Large Scale Systems Museum near Pittsburgh!
DEC disk pacs (and some magnetic tapes) everywhere.
…and some very good regular switches, too.
(I liked the whole hierarchy of toggles in that last photo.)
@mwichary My dad had an old electronic calculator — an enormous thing that must have weighed 20 kg — with a row of 10 or 12 Nixies for the display.
It was fascinating to watch in use, because it was *just* slow enough to see the digits flicker back and forth while it was calculating the answer.