I was confused at some parts of the narrative because I had only a vague understanding how punched cards worked. Here's a video about their working that gives a

I was confused at some parts of the narrative because I had only a vague understanding how punched cards worked. Here's a video about their working that gives a much clearer picture — https://www.youtube.com/watch?v=KG2M4ttzBnY https://www.youtube.com/watch?v=KG2M4ttzBnY