[Tymkrs] had a robot paper cutter, so naturally they made punch cards. But then, of course, they needed a punch card reader, so they made one of those too. All with stuff lying around the shop.

(1) See loyalty punch card. (2) An early storage medium made of thin cardboard stock that held data as patterns of punched holes. Also called "punched" cards, each of the 80 or 96 columns held one ...

As an experiment to re-create those features in a more modern system, [Michael Kohn] made a punch card-like system based on LEGO bricks that stores machine code instructions for a 65C816 CPU ...

Sources at the COD factory report that while a punch card system was implemented, biometric attendance was not enforced, leaving the system vulnerable to exploitation. This oversight has allowed ...

This adorable DIY punch card activity, which I discovered on Instagrammer Emilia Marie's (@emiliamariehome) feed, is a great way to create an easy plan to stay motivated. Plus, it's a fun craft to ...