This one may take some explaining. In 1959, I went to an IBM training school. I was taught how to operate, program and wire various TAB equipment. One of the worse things that could happen was for an error light to blink on a machine you were working on. It was something everyone in class felt nervous about. This cartoon came from those classes. In the cartoon all the error and warning lights are blinking on what I believe is a collator. When I went to this school, TAB was being called the "job of the future". The last time I saw any of the equipment I learned about it was on display at the Smithsonian Institute as history.
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