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A punched card (also punch card) is a stiff paper-based medium used to store digital information via the presence or absence of holes in predefined positions. Developed over the 19th to 20th centuries, punched cards were widely used for data processing, the control of automated machines, and computing. Early applications included controlling weaving…
History & Culture
Explore the main themes, entities and connections around Punched card. Start with the topic map, then use the sections below for research and deeper semantic analysis.
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cards punched card ibm used data holes could columns punch machines format use hollerith 80 column 12 rows two information
| Subject | Predicate | Object | Confidence | Src |
|---|---|---|---|---|
| checks | instance of | a warning that appeared on some punched cards distributed as documents | 0.80 | text |
| utility bills to be returned for processing | instance of | a warning that appeared on some punched cards distributed as documents | 0.80 | text |
| became a motto for the post | instance of | a warning that appeared on some punched cards distributed as documents | 0.80 | text |
| Punched card | has impact | While | 0.60 | section |
| Punched card | has impact | For | 0.60 | section |
| Punched card | has impact | Accommodation | 0.60 | section |
| Punched card | has impact | The Man Whose Name | 0.60 | section |
| Punched card | has impact | Wouldn't FitArtist | 0.60 | section |
| Punched card | has impact | Maya Lin | 0.60 | section |
| Punched card | has impact | Ohio University | 0.60 | section |
| Punched card | has impact | Input | 0.60 | section |
| Punched card | has impact | Tucker Hall | 0.60 | section |
These clusters group vocabulary that occurs around closely connected concepts in the source material.
Bridges can reveal useful research angles that are easy to miss in a flat list of related terms.