Extremely RARE VINTAGE Punch Jacquard Loom Cards prototype Hollerith 80 Col Card

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Extremely RARE VINTAGE Punch Jacquard Loom Cards prototype Hollerith 80 Col Card:
$299.99

Jacquard Loom CardsEarly Computer Programming
ReferencesUtube: “Jacquard Loom: Early Computer Programming”Wikipedia: “Jacquard Loom”Utube: “Punch Card Programming – Computerphile”
The Jacquard loom is a power loom, invented by Joseph Marie Jacquard, first demonstrated in 1801, that simplifies the process of manufacturing textiles with such complex patterns as brocade, damask.
Importance in computing:
The Jacquard head used replaceable punched cards to control a sequence of operations. It is considered an important step in the history of computing hardware. The ability to change the pattern of the loom\'s weave by simply changing cards was an important conceptual precursor to the development of computer programming and data entry. Charles Babbage knew of Jacquard looms and planned to use cards to store programs in his Analytical engine. In the late 19th century, Herman Hollerith took the idea of using punched cards to store information a step further when he created a punched card tabulating machine which he used to input data for the 1890 U.S. Census. A large, punched-card-based data processing industry developed in the first half of the twentieth century, dominated by the International Business Machine corporation (IBM), with its line of unit record equipment. The cards were used for data, however, with programming done by plugboards.
What you will RECEIVE:I am selling a set of 6 cards (as pictured) held together by their original cotton fabric string. The moving of the cards through the loom machine represent \"the program instructions\" for the loom\'s operation. Each card measures 17\" x 3-1/2\" and is made of very thick card stock.