droped tailwindcss and added css helper functions and styling
This commit is contained in:
parent
aa80670c99
commit
08ee6f32f8
88
css/srx.css
88
css/srx.css
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@ -1,14 +1,90 @@
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:root {
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--c_dark: #191919;
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--c_light: #fff;
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--c_scheme_bg: var(--c_dark);
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--c_scheme_el: var(--c_light);
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}
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::selection {
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background-color: #fece30;
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color: var(--c_light);
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}
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@media (prefers-color-scheme: light) {
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:root {
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--c_scheme_bg: var(--c_light);
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--c_scheme_el: var(--c_dark);
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--c_scheme_filter: grayscale(0);
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}
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}
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@font-face {
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font-family: 'workbench';
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src: url('../font/WORKBENCH-REGULAR.ttf') format('truetype');
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}
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h1,
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h2,
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h3,
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h4,
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h5,
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h6 {
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.p-uppercase {
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text-transform: uppercase;
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letter-spacing: 0.2rem;
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}
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.p-bold {
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font-weight: 500;
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letter-spacing: 0.3rem;
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}
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.p-text-style {
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font-weight: 300;
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letter-spacing: 0.05rem;
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}
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.p-separator {
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width: 7rem;
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border: 1px solid var(--c_scheme_el);
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margin: 1.8rem auto 1.4rem;
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}
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.figure {
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width: 50%;
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margin: 0 auto 2rem;
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}
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.figure__img {
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width: 100%;
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height: auto;
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filter: var(--c_scheme_filter);
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transition: filter 0.3s ease-in;
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}
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.figure__caption {
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width: 80%;
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font-size: 0.9rem;
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line-height: 1.8;
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margin: 0 auto;
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}
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.article {
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max-width: 54rem;
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text-align: center;
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font-family: "Oswald", sans-serif;
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margin: 0 auto;
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padding: 1.5rem 8vmin 0;
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}
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.article__headline {
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color: var(--c_scheme_el);
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font: inherit;
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font-family: workbench;
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font-size: 2rem;
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font-weight: 200;
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margin: 0;
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}
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body {
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width: 100%;
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min-width: 20rem;
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background-color: var(--c_scheme_bg);
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color: var(--c_scheme_el);
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margin: 0;
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}
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148
index.html
148
index.html
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@ -1,79 +1,77 @@
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<!doctype html>
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<html lang="en">
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<head>
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<title>What is Magnetic-core memory?</title>
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<meta charset="UTF-8">
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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
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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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<meta property="og:image" content="/image.png"/>
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<script src="./js/tailwindcss.js?plugins=forms,typography,aspect-ratio,line-clamp"></script>
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<link rel="stylesheet" href="./css/srx.css">
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</head>
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<body>
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<main>
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<article>
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<div class="relative overflow-hidden bg-white">
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<div class="pb-80 pt-16 sm:pb-40 sm:pt-24 lg:pb-48 lg:pt-40">
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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
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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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The core to be written is selected by powering one X and one Y wire
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to half of the required power, such that only the single core at the
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intersection is written. Depending on the direction of the currents,
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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
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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
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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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</div>
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<div>
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<div class="mt-10">
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<div aria-hidden="true" class="pointer-events-none lg:absolute lg:inset-y-0 lg:mx-auto lg:w-full lg:max-w-7xl">
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<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">
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<div class="flex items-center space-x-6 lg:space-x-8">
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<div class="grid flex-shrink-0 grid-cols-1 ">
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<div class="h-64 w-44 overflow-hidden rounded-lg">
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<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.">
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</div>
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</div>
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</div>
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</div>
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</div>
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</div>
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</div>
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</div>
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</div>
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</div>
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</article>
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</main>
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</body>
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<head>
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<title>What is Magnetic-core memory?</title>
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<meta charset="UTF-8">
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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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<!-- 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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<meta property="og:image" content="/image.png" />
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<script src="./js/tailwindcss.js?plugins=forms,typography,aspect-ratio,line-clamp"></script>
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<link rel="stylesheet" href="./css/srx.css">
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</head>
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<main>
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<article class="article">
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<h1 class="article__headline">
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What is Magnetic-core <span class="p-uppercase">memory?</span>
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</h1>
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<hr class="p-separator" />
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<p class="p-text-style">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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The core to be written is selected by powering one X and one Y wire
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to half of the required power, such that only the single core at the
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intersection is written. Depending on the direction of the currents,
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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
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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 destructive
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readout, 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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<figure class="figure">
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<img class="" src="./img/IMG_20240205_00.webp"
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alt="A Core memory Module showing the detailed structure of ferrite cores and copper wires.">
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</figure>
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<footer class="footer">
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<p>
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<small class="footer_small">
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Source: <a href="https://en.wikipedia.org/wiki/Magnetic-core_memory">Wikipedia:
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Magnetic-Core-Memory</a>
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</small>
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</p>
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</footer>
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</article>
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</main>
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</body>
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</html>
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