Keypunch
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A keypunch is a device for precisely punching holes into stiff paper cards at specific locations as determined by keys struck by a human operator. Other devices included here for that same function in
IBM 026 Keypunch
Keypunch operators at work at the U.S. Social Security Administration in the 1940s
Operators compiling hydrographic data for navigation charts on punch cards using the IBM Type 016 Electric Duplicating Key Punch, New Orleans, 1938
Hollerith's Keyboard (pantograph) Punch. This photo is staged; the keyboard layout is for the Farm card (leftmost column is labeled "Kind of Farm") of an Agricultural Census while the paper under the punch shows the layout of the 1890 Population Census card (the actual 1890 census cards had no printing).
Jacquard machine
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The Jacquard machine is a device fitted to a loom that simplifies the process of manufacturing textiles with such complex patterns as brocade, damask and matelassé. The resulting ensemble of the loom
Keypunch
…punch, the pantograph punch, and the stamp. The term was also used for similar machines used by humans to transcribe data onto punched tape media. For Jacquard looms, the resulting punched cards were joined together to form a paper tape, called a "chain", containing a program that, when read by a loom, directed its…
This portrait of Jacquard was woven in silk on a Jacquard loom and required 24,000 punched cards to create (1839). It was only produced to order. Charles Babbage owned one of these portraits; it inspired him in using perforated cards in his Analytical Engine. It is in the collection of the Science Museum in London, England.
A Jacquard loom showing information punchcards, National Museum of Scotland
A schematic diagram of the Jacquard system
19th century Engineering drawing of a Jacquard loom