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Punched card - Wikipedia
The punched card - IBM
Computer programming in the punched card era - Wikipedia
What is a Punch Card? - Computer Hope
What is a Punch Card? Definition and Uses - GeeksforGeeks
Punch Cards for Data Processing | Smithsonian Institution
Punched card | What is, characteristics, history, how it ... - Euston96
Punched card - Simple English Wikipedia, the free encyclopedia
Punch Cards | National Museum of American History
Punched card input/output - Wikipedia