What is a Punch Card?

Computer dictionary definition of what punch card or punched card means, including related links, information, and terms.

Punch Cards for Data Processing

Powerhouse Collection - IBM port-a-punch

[Quality & Size] Punch cards are made from art paper to standard business card size, 3.5 x 2, which ensures durability and helps maintain shape

Punch Cards for Classroom, 240 Pack Kids Behavior Reward Punch Cards, Incentive Punch Card for kids, Business, Students, Teachers, 2 Styles

How & Why Loyalty Punch Cards Attract Customers to Your Brand [+ Examples]

What were punch cards and how did they change business?

File:Punch card Fortran Uni Stuttgart (3).jpg - Wikimedia Commons

Machine Knitting with Punch card: Tuck and Fair Isle stitch pattern

Learn to punch your own machine knitting punchcards — Machine Knitting with the Machine Knit Community

Punching in MIT Technology Review

Punch Cards Smithsonian Institution