Mother of computers : Punched card - 1801
Joseph Marie Jacquard automates production and invents an early methodology of storing encoded data.
In 1801 the Frenchman Joseph Marie Jacquard invented a power loom that would base its weave (and thus the design on the fabric) upon a pattern automatically scan from punched wooden cards, held along in a very long row by rope
Each position within the card corresponds to a "Bolus" hook, which can either be raised or stopped dependent on whether the hole is punched out of the card . The hook raises or lowers the harness, that carries and guides the warp thread in order that the thread can either lie higher than or below it. The sequence of raised and lowered threads is what creates the pattern. every hook will be connected to variety of threads, permitting quite one repeat of a pattern. A loom with a four hundred hook head may need four threads connected to every hook, leading to a cloth that's 1600 warp ends wide with four repeats of the weave going across.
The Jacquard head used replaceable punched cards to manage a sequence of operations. it's considered a vital step within the history of computing hardware.The ability to vary the pattern of the loom's weave by merely dynamic cards was a precursor to the event of computer programming and knowledge entry.
Charles Babbage knew of Jacquard looms and planned to use cards to store programs in his Analytical engine.
A large, punched-card-based processing trade developed within the half of the 20th century, dominated by the International Business Machine corporation (IBM), with its line of unit record instrumentation. The cards were used for knowledge, however, with programming done by plug-boards.
Some
early computers, like the 1944 IBM Automatic Sequence Controlled
Calculator (Harvard Mark I) received program directions from a paper
punched with holes, the same as Jacquard's string of cards. Later
computers dead programs from higher-speed memory, tho' cards were
unremarkable used to load the programs into memory. Punched cards
remained in use in computing up till the middle Eighties.
In 1801 the Frenchman Joseph Marie Jacquard invented a power loom that would base its weave (and thus the design on the fabric) upon a pattern automatically scan from punched wooden cards, held along in a very long row by rope
Each position within the card corresponds to a "Bolus" hook, which can either be raised or stopped dependent on whether the hole is punched out of the card . The hook raises or lowers the harness, that carries and guides the warp thread in order that the thread can either lie higher than or below it. The sequence of raised and lowered threads is what creates the pattern. every hook will be connected to variety of threads, permitting quite one repeat of a pattern. A loom with a four hundred hook head may need four threads connected to every hook, leading to a cloth that's 1600 warp ends wide with four repeats of the weave going across.
The Jacquard head used replaceable punched cards to manage a sequence of operations. it's considered a vital step within the history of computing hardware.The ability to vary the pattern of the loom's weave by merely dynamic cards was a precursor to the event of computer programming and knowledge entry.
Charles Babbage knew of Jacquard looms and planned to use cards to store programs in his Analytical engine.
A large, punched-card-based processing trade developed within the half of the 20th century, dominated by the International Business Machine corporation (IBM), with its line of unit record instrumentation. The cards were used for knowledge, however, with programming done by plug-boards.
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