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Who invented a loom that used punch cards?
Jean-Baptiste Falcon and Basile Bouchon were the first to use punch cards to control textile looms, Joseph Marie Jacquard improved it with his 'Jacquard Loom' and Charles Babbage came up with idea of how to use it as input for a computer. Herman Hollerith came up with a working model of the punched card loom for the US Census at the end of the 19th century.
What is Jacquard's loom?
The Jacquard loom is a mechanical loom which was invented in1801 by Joseph Marie Jacquard. The loom is controlled by cards with punched holes, and creates complex woven textile patterns such as brocade, damask, etc. It was the first machine to use punched cards to control a series of operations and the operator could change the pattern of the weave by changing to different cards. Each hole location on a card corresponds to a hook which can either be raised or lowered depending on whether the hole is punched out left solid. The hook raises or lowers a thread harness, which carries and guides the warp thread so that the weft will either lie above or below it, the sequence of raised and lowered threads creating the pattern. Modern jacquard looms are controlled by computers instead of punched cards, and may have thousands of hooks.
Where did Joseph Marie jacquard use the programmable loom?
A Jacquard loom is the first automatic loom and is a precursor to all the mechanical looms that are in use today. It is actually an improvement of the semi-automatic looms devised by Frenchmen, Basile Bouchon, Baptiste Falcon and Jacques Vaucanson. The loom was controlled by a series of punched "cards" that were looped together to form a repeating pattern. The holes were sensed by pins which determined which color showed thru (If you know weaving, it guided the warp thread to see if it was under or over the weft thread).This notion was later incorporated into punched cards used for collation machines which ultimately evolved into computers.Although there are still some punched card looms for use by hobbyists and for historical purposes, most of the looms today are controlled digitally.
Why do you use keyboards?
Because the computer can't read my thoughts and I need some way to tell it what I want it to do. When I first started using computers you used punched cards to do that and the keypunch that punched the cards had a keyboard but was not connected to the computer. You punched the deck using the keyboard on the keypunch, then took the deck to the computer's card reader.
What innovation in computer technology was made possible by the use of integrated circuits?
Instead of punched cards, users interacted with their computers using keyboards, monitors, and operating systems.
Who is credited to use punch card to control weaving machine?
Joseph Mary Jacquard
What is electronic punch card system?
An electronic punch card system was the first data entry system for computers. Cards were punched with holes according to the information that was stored or directions for the computer. The card was inserted into a card reader and the data was collected. Factories still use a type of punch card system with their manual time cards. Only with the time card, information is printed on the card instead of holes punched.
What were the challenges faced by the use of punched cards?
Cards were a fixed size. They were limited to 80 characters per card, so abbreviations were commonly used. This was one of the issues with the Y2K transition, years had been abbreviated with two characters instead of 4. A program had to be written into the computer through the cards. Each card represented a line of code. If a program had 1000 lines of code, that was 1000 cards that had to be punched out on the machine, and kept in order. If you dropped them, it took forever to resort them. Cards might not feed into the reader correctly, particularly if the weather was humid or damp. A bent card might jam up the machine, destroying some of the other cards, resulting in having to re-punch the cards.
Use unintentionally in a sentence?
i unattentionaly punched my boyfriend
Can you use hole punched paper in a printer?
yes ofcourse..
What government agency did Herman Hollerith use?
Herman Hollerith developed a mechanical tabulator based on punched cards to rapidly compile statistics. He worked for the US Census Bureau building his machines, before going into business for himself.
What was the name of the first machine that could be programmed by cards with holes punched holes?
The Jaquard Loom in 1801. Punched cards actually date back to around 1725 when they replaced the perforated paper rolls that were in use at the time, but the machines still required human intervention. It was Joseph Marie Jaquard who improved the technique to create what is arguably the first fully-automated, re-programmable machine; insofar as once it was programmed, the machine could complete the job of its own accord.
