Anybody besides me ever use one of these in college?  sliderule

Or these?  punchcard

One Response

  1. I guess that means “no.” Perhaps I’m the only dinosaur from college in the ’60s? The top image is a sliderule or “slipstick” which engineers pre-1970 used extensively. With one you can calculate just about any function that Excel does today. The lower image is a punch card which was used to input code and data into early computers.

Leave a Reply

This site uses Akismet to reduce spam. Learn how your comment data is processed.