The Jacquard Loom is considered the ancestor of the IBM punch card. This example hails from the Henry Ford Museum. While I've been using computers for a long time, I did not program this one. I did, however, spend far too much of my time in the late 70s programming with IBM punch cards.
In the category of everything old is new again, I submit this primitive PDA.
Dale Austin, 2007
All images and text Copyright Dale Austin, 1962-2008