"robots known as pen plotters" is a nice marketing twist that I don't think I've heard before. https://www.hpmuseum.net/exhibit.php?class=4&cat=24 https://www.

"robots known as pen plotters" is a nice marketing twist that I don't think I've heard before. https://www.hpmuseum.net/exhibit.php?class=4&cat=24 https://www.hpmuseum.net/exhibit.php?class=4&cat=24