Historical contribution
What Jacquard contributed
Joseph-Marie Jacquard's early nineteenth-century loom mechanism used linked punched cards to select warp threads. The cards made intricate patterns repeatable and rearrangeable. The Smithsonian describes punched cards as a key element in the broader rise of machine control.
Why it mattered
Externalises repeatable instructions and structured records in a portable machine-readable form.
Connected topics
Where this fits in ITEM
Evidence
Sources and further reading
- Punch Cards spotlight
Smithsonian
- The punched card
IBM