updated and formated web environments
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.gitignore
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.gitignore
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@ -9,5 +9,6 @@ node_modules
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*.log
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# personal environment configuration
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.direnv
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.env.*
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.env
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.vscode/extensions.json
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.vscode/extensions.json
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"kamadorueda.alejandra",
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"mblode.pretty-formatter",
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"mikestead.dotenv",
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"stylelint.vscode-stylelint",
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],
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"unwantedRecommendations": []
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}
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22
index.html
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index.html
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<meta name="viewport" content="width=device-width, initial-scale=1"/>
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<meta name="description" content="HTML & CSS Course Examples.">
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<meta name="author" content="Sebastian Wendel"/>
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<meta name="created" content="2024-02-09T14:14:22.450262740"/>
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<meta
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name="created" content="2024-02-09T14:14:22.450262740"/>
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<!-- TODO: Checkout the full list of Open Graph Data tags -->
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<meta property="og:title" content="What is Magnetic-core memory?"/>
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<meta property="og:description" content="HTML & CSS Course Examples."/>
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@ -20,10 +21,15 @@
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<div class="relative mx-auto max-w-7xl px-4 sm:static sm:px-6 lg:px-8">
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<div class="sm:max-w-lg">
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<h1 class="text-4xl font-bold tracking-tight text-gray-900 sm:text-6xl">What is Magnetic-core memory?</h1>
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<p class="mt-4 text-xl text-gray-500" >Core memory uses <a href="https://en.wikipedia.org/wiki/Toroid">toroids</a>
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(rings) of a <a href="https://en.wikipedia.org/wiki/Hard_magnetic_material">hard
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magnetic material</a> (usually a <a href="https://en.wikipedia.org/wiki/Ferrite_(magnet)#Semi-hard_ferrites">semi-hard
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ferrite</a>). Each core stores one <a href="https://en.wikipedia.org/wiki/Bit">bit</a>
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<p class="mt-4 text-xl text-gray-500">Core memory uses
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<a href="https://en.wikipedia.org/wiki/Toroid">toroids</a>
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(rings) of a
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<a href="https://en.wikipedia.org/wiki/Hard_magnetic_material">hard
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magnetic material</a>
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(usually a
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<a href="https://en.wikipedia.org/wiki/Ferrite_(magnet)#Semi-hard_ferrites">semi-hard
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ferrite</a>). Each core stores one
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<a href="https://en.wikipedia.org/wiki/Bit">bit</a>
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of information. Two or more wires pass through each core, forming an
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X-Y array of cores. When an electrical current above a certain
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threshold is applied to the wires, the core will become magnetized.
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@ -33,14 +39,16 @@
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the core will pick up a clockwise or counterclockwise magnetic field,
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storing a 1 or 0.
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This writing process also causes electricity to be <a href="https://en.wikipedia.org/wiki/Electromagnetic_induction">induced</a>
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This writing process also causes electricity to be
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<a href="https://en.wikipedia.org/wiki/Electromagnetic_induction">induced</a>
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into nearby wires. If the new pulse being applied in the X-Y wires is
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the same as the last applied to that core, the existing field will do
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nothing, and no induction will result. If the new pulse is in the
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opposite direction, a pulse will be generated. This is normally
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picked up in a separate "sense" wire, allowing the system
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to know whether that core held a 1 or 0. As this readout process
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requires the core to be written, this process is known as <i>destructive
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requires the core to be written, this process is known as
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<i>destructive
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readout</i>, and requires additional circuitry to reset the core to
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its original value if the process flipped it.
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</p>
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