But then, of course, they needed a punch card reader ... with a gap for the cards and perpendicular holes drilled for LEDs and photoresistors. This is cabled to a Propeller dev board with ...

To punch a number on the card, a machine made a hole in one of the bottom 10 columns. So a hole in the “1” row was a 1 and a hole in the “4” row was a 4. The original cards used round ...

Social media users are embracing a system of loyalty card-like rewards thanks to one creator’s viral Galentine’s Day activity. “What’s more motivating than a punch card?” That’s the simple idea behind ...

(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 ...

Want to keep track of your goals? Make one of these viral "punch cards" that TikTok users are making to stick to their good ...

As characters were typed, a series of dies at the punch station punched the appropriate holes in the selected card column. THIS DEFINITION IS FOR PERSONAL USE ONLY. All other reproduction requires ...