“Do not fold, spindle, or mutilate” was printed on the punch cards that fed data into IBM computers in the 1950s, when those primitive calculating machines could occupy the entire floor of a building.

I got the very tail end of punch cards when I was in college. It was references to jokes about "Do not fold spindle or mutilate." Made me curious enough to find out what a spindle was. Also - unix ...

For the first time, the Rena Bransten Gallery and the Casemore Gallery are co-presenting the sprawling, sometimes serious and sometimes riotous exhibition, “Do Not Fold, Spindle, or Mutilate.” Taking ...