History and Structure of the internet
Joseph-Marie Jacquard
Introduction
Joseph Marie Charles also known as “Jacquard” was born on 7th July 1752 in Lyon, France. He Died on the 7th of August 1834 in Oullins, France.
He played an important role in the development of the earliest programmable loom, which played an important role in the development of other programmable machines, such as computer.
His punched cards were adapted by Charles Babbage as an input/output medium for his proposed analytical engine and by Herman Hollerith to feed data to his census machine, and punched cards were used for inputting data into early digital computers.
Discussion
Jacquard loom is a series of connected perforated cards that passed over needles and then pressed against a card. Whenever a hole came up the needle would go through it and activates the threading mechanism. The pattern of the holes on the cards determined the pattern that would be produced on the textile. The process can be repeated over and over again. Raising different warp threads during weaving it is possible to make fabrics of different textures, even the colour of the cloth in order to create designs or patterns on the texture.
Combining any number of connected cards in a loop, Jacquard's loom was able to weave patterns of great complexity, and these became popular for tablecloths and bed coverings.
Jacquard loom was perfected and was bought by the state and declared publicproperty. He was granted an annuity of 3,000 francs and a royalty on all looms sold
Jacquard was not the first and only man to try the automatic loom. Other people like Jacques Vaucanson, Basil Bouchon, and Jean Falcon.
Jean falcon develop an attachment for the looms which could deflect multiple rows of hooks continuously. He used a cylinder to hold each card in place while it pressed against the rows of hook.
Jacques Vancanson was a French inventor who designed and built automated mechanical toys and also appointed inspector of silk factories.
Basil Bouchon invented an attachment for draw looms which used a board strip of punch paper to select the threads that would be raised during the weaving.
Conclusion
my conclusion is that Jacquard loom made a big impact to computer and programming. It offered a solution to certain problems faced by 19th-century inventors of computing machines and can be considered a distant ancestor of 20th-century computers. significance of his work lives on. His invention of the punch-card system acted as a harbinger of the advent of computers under the binary system
The Jacquard loom was the first machine to use punched cards to control a sequence of operations. Although it did not really based on them, 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 concept to the development of computer programming, Charles Babbage planned to use cards to store programs in his analytical engine.
Bibliography
library. Thinkquest.org/co126120/jacquard.htm
en.wikipedia.org/wiki/Joseph_Marie_Jacquard
www..sacklunch.net/biography/j./JosephMarieJacquard_1.html
inventors.about.com/library/inventors/bl_jacquard.htm