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Sebastian Wendel 2024-02-09 15:26:54 +01:00
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MIT License
Copyright (c) 2024 Sebastian Wendel
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.
THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

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# HCS html and css
This repository serves as a portfolio of my progress and learning journey through the Full-Stack Development Course at the Hamburg Coding School. The exercises included here cover various aspects of HTML and CSS, ranging from basic syntax to more advanced concepts such as responsive design and CSS frameworks.
## License
This repository is licensed under the [MIT License](./LICENSE). You are free to use, modify, or distribute the code as per the terms of the license.

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@font-face {
font-family: 'workbench';
src: url('../font/WORKBENCH-REGULAR.ttf') format('truetype');
}
h1, h2, h3, h4, h5, h6 {
font:inherit;
font-family: workbench;
}

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<!doctype html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="author" content="Sebastian Wendel"/>
<meta name="created" content="2024-02-09T14:14:22.450262740"/>
<script src="./js/tailwindcss.js?plugins=forms,typography,aspect-ratio,line-clamp"></script>
<link rel="stylesheet" href="./css/srx.css">
</head>
<body>
<div class="relative overflow-hidden bg-white">
<div class="pb-80 pt-16 sm:pb-40 sm:pt-24 lg:pb-48 lg:pt-40">
<div class="relative mx-auto max-w-7xl px-4 sm:static sm:px-6 lg:px-8">
<div class="sm:max-w-lg">
<h1 class="text-4xl font-bold tracking-tight text-gray-900 sm:text-6xl">What is Magnetic-core memory?</h1>
<p class="mt-4 text-xl text-gray-500" >Core memory uses <a href="https://en.wikipedia.org/wiki/Toroid">toroids</a>
(rings) of a <a href="https://en.wikipedia.org/wiki/Hard_magnetic_material">hard
magnetic material</a> (usually a <a href="https://en.wikipedia.org/wiki/Ferrite_(magnet)#Semi-hard_ferrites">semi-hard
ferrite</a>). Each core stores one <a href="https://en.wikipedia.org/wiki/Bit">bit</a>
of information. Two or more wires pass through each core, forming an
X-Y array of cores. When an electrical current above a certain
threshold is applied to the wires, the core will become magnetized.
The core to be written is selected by powering one X and one Y wire
to half of the required power, such that only the single core at the
intersection is written. Depending on the direction of the currents,
the core will pick up a clockwise or counterclockwise magnetic field,
storing a 1 or 0.
This writing process also causes electricity to be <a href="https://en.wikipedia.org/wiki/Electromagnetic_induction">induced</a>
into nearby wires. If the new pulse being applied in the X-Y wires is
the same as the last applied to that core, the existing field will do
nothing, and no induction will result. If the new pulse is in the
opposite direction, a pulse will be generated. This is normally
picked up in a separate &quot;sense&quot; wire, allowing the system
to know whether that core held a 1 or 0. As this readout process
requires the core to be written, this process is known as <i>destructive
readout</i>, and requires additional circuitry to reset the core to
its original value if the process flipped it.
</p>
</div>
<div>
<div class="mt-10">
<div aria-hidden="true" class="pointer-events-none lg:absolute lg:inset-y-0 lg:mx-auto lg:w-full lg:max-w-7xl">
<div class="absolute transform sm:left-1/2 sm:top-0 sm:translate-x-8 lg:left-1/2 lg:top-1/2 lg:-translate-y-1/2 lg:translate-x-8">
<div class="flex items-center space-x-6 lg:space-x-8">
<div class="grid flex-shrink-0 grid-cols-1 ">
<div class="h-64 w-44 overflow-hidden rounded-lg">
<img class="h-full w-full object-cover object-center" src="./img/IMG_20240205_00.webp" alt="A Core memory Module showing the detailed structure of ferrite cores and copper wires.">
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</body>
</html>

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