{"id":1181,"date":"2025-06-05T10:28:44","date_gmt":"2025-06-05T09:28:44","guid":{"rendered":"https:\/\/workboot.fr\/ciela\/?page_id=1181"},"modified":"2025-07-18T14:05:08","modified_gmt":"2025-07-18T13:05:08","slug":"le-noyau-kernel","status":"publish","type":"page","link":"https:\/\/workboot.fr\/ciela\/le-noyau-kernel\/","title":{"rendered":"Le noyau (KERNEL)"},"content":{"rendered":"<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-large is-resized\"><a href=\"https:\/\/workboot.fr\/ciela\/wp-content\/uploads\/2025\/06\/Cohen-Linus-Torvalds.webp\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"649\" src=\"https:\/\/workboot.fr\/ciela\/wp-content\/uploads\/2025\/06\/Cohen-Linus-Torvalds-1024x649.webp\" alt=\"\" class=\"wp-image-1184\" style=\"width:391px;height:auto\" srcset=\"https:\/\/workboot.fr\/ciela\/wp-content\/uploads\/2025\/06\/Cohen-Linus-Torvalds-1024x649.webp 1024w, https:\/\/workboot.fr\/ciela\/wp-content\/uploads\/2025\/06\/Cohen-Linus-Torvalds-300x190.webp 300w, https:\/\/workboot.fr\/ciela\/wp-content\/uploads\/2025\/06\/Cohen-Linus-Torvalds-768x487.webp 768w, https:\/\/workboot.fr\/ciela\/wp-content\/uploads\/2025\/06\/Cohen-Linus-Torvalds-1536x973.webp 1536w, https:\/\/workboot.fr\/ciela\/wp-content\/uploads\/2025\/06\/Cohen-Linus-Torvalds.webp 1600w\" sizes=\"auto, (max-width: 1024px) 100vw, 1024px\" \/><\/a><figcaption class=\"wp-element-caption\">Linus Torvald le cr\u00e9ateur de Linux et de Git <\/figcaption><\/figure>\n<\/div>\n\n\n<h4 class=\"wp-block-heading\">\ud83e\udde0 <strong>1. C\u2019est quoi un noyau (kernel) ?<\/strong><\/h4>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"alignright size-full\"><a href=\"https:\/\/workboot.fr\/ciela\/wp-content\/uploads\/2025\/07\/Bash-Shell-in-Linux.png\"><img loading=\"lazy\" decoding=\"async\" width=\"499\" height=\"394\" src=\"https:\/\/workboot.fr\/ciela\/wp-content\/uploads\/2025\/07\/Bash-Shell-in-Linux.png\" alt=\"\" class=\"wp-image-2600\" srcset=\"https:\/\/workboot.fr\/ciela\/wp-content\/uploads\/2025\/07\/Bash-Shell-in-Linux.png 499w, https:\/\/workboot.fr\/ciela\/wp-content\/uploads\/2025\/07\/Bash-Shell-in-Linux-300x237.png 300w\" sizes=\"auto, (max-width: 499px) 100vw, 499px\" \/><\/a><\/figure>\n<\/div>\n\n\n<p class=\"wp-block-paragraph\">Imaginez un ordinateur comme un orchestre :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Les <strong>applications<\/strong> (navigateur, traitement de texte, etc.) sont les musiciens.<\/li>\n\n\n\n<li>Le <strong>mat\u00e9riel<\/strong> (processeur, disque dur, m\u00e9moire, etc.) est la sc\u00e8ne et les instruments.<\/li>\n\n\n\n<li>Le <strong>noyau<\/strong>, lui, c\u2019est le <strong>chef d\u2019orchestre<\/strong>. Il organise tout pour que les musiciens puissent jouer correctement.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">En bref :<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">Le noyau est le <strong>programme central<\/strong> d\u2019un syst\u00e8me d\u2019exploitation. Il fait le lien entre le mat\u00e9riel et les logiciels.<\/p>\n<\/blockquote>\n\n\n\n<h4 class=\"wp-block-heading\">\ud83d\udc27 <strong>2. Et Linux dans tout \u00e7a ?<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Linux<\/strong>, c\u2019est <strong>le nom du noyau<\/strong>. Ce n\u2019est pas une application ni un syst\u00e8me complet, mais <strong>le c\u0153ur<\/strong> qui fait tout tourner.<\/li>\n\n\n\n<li>Les syst\u00e8mes comme Ubuntu, Debian, Fedora sont des <strong>distributions<\/strong> : des syst\u00e8mes complets construits <strong>autour du noyau Linux<\/strong>.<\/li>\n<\/ul>\n\n\n\n<hr class=\"wp-block-separator has-alpha-channel-opacity\"\/>\n\n\n\n<h4 class=\"wp-block-heading\">\ud83c\udd9a <strong>3. Comparaison avec Windows<\/strong><\/h4>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Fonction<\/th><th>Sous Windows<\/th><th>Sous Linux<\/th><\/tr><\/thead><tbody><tr><td>Noyau<\/td><td>Ferm\u00e9, propri\u00e9taire (Microsoft)<\/td><td>Ouvert, libre (Linux)<\/td><\/tr><tr><td>Acc\u00e8s au noyau<\/td><td>Cach\u00e9 \u00e0 l\u2019utilisateur<\/td><td>Visible, modifiable par tous<\/td><\/tr><tr><td>R\u00e9partition des ressources<\/td><td>G\u00e9r\u00e9e automatiquement<\/td><td>G\u00e9r\u00e9e aussi, mais param\u00e9trable<\/td><\/tr><tr><td>Mise \u00e0 jour du noyau<\/td><td>Par Windows Update<\/td><td>Possible manuellement ou auto<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h4 class=\"wp-block-heading\">\ud83d\udd27 <strong>4. Ce que fait le noyau Linux concr\u00e8tement<\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Le noyau :<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\ud83e\udde0 G\u00e8re la <strong>m\u00e9moire<\/strong> (RAM)<\/li>\n\n\n\n<li>\ud83d\udda5\ufe0f Organise l\u2019usage du <strong>processeur<\/strong><\/li>\n\n\n\n<li>\ud83d\udcbd Dialogue avec les <strong>p\u00e9riph\u00e9riques<\/strong> (clavier, souris, disques, imprimantes\u2026)<\/li>\n\n\n\n<li>\ud83d\udc65 G\u00e8re les <strong>utilisateurs et les permissions<\/strong><\/li>\n\n\n\n<li>\ud83d\udd17 Permet la <strong>communication entre processus<\/strong><\/li>\n\n\n\n<li>\ud83d\udce6 Charge les <strong>pilotes (drivers)<\/strong> n\u00e9cessaires au mat\u00e9riel<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/fr.wikipedia.org\/wiki\/Noyau_Linux\">https:\/\/fr.wikipedia.org\/wiki\/Noyau_Linux<\/a><\/p>\n\n\n\n<h4 class=\"wp-block-heading\">\ud83d\udca1 <strong>5. Pourquoi apprendre Linux ?<\/strong><\/h4>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Plus de contr\u00f4le<\/strong> sur votre syst\u00e8me<\/li>\n\n\n\n<li>Pr\u00e9sent <strong>partout<\/strong> : serveurs, smartphones (Android), objets connect\u00e9s, superordinateurs\u2026<\/li>\n\n\n\n<li>Tr\u00e8s utile pour les <strong>\u00e9tudes en informatique<\/strong>, la cybers\u00e9curit\u00e9, le d\u00e9veloppement\u2026<\/li>\n<\/ul>\n\n\n\n<h4 class=\"wp-block-heading\">\ud83d\udcda <strong>6. Anecdote pour marquer les esprits<\/strong><\/h4>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\u00ab\u00a0Linux a \u00e9t\u00e9 cr\u00e9\u00e9 en 1991 par Linus Torvalds, un \u00e9tudiant finlandais qui voulait juste un syst\u00e8me d\u2019exploitation libre pour son ordinateur personnel.\u00a0\u00bb<\/p>\n<\/blockquote>\n\n\n\n<h4 class=\"wp-block-heading\">\ud83d\udee0\ufe0f <strong>7. Bonus : Peut-on voir le noyau Linux ?<\/strong><\/h4>\n\n\n\n<p class=\"wp-block-paragraph\">Oui ! Contrairement \u00e0 Windows, <strong>le code source est accessible<\/strong> :<\/p>\n\n\n\n<pre class=\"wp-block-preformatted\"><code>cd \/usr\/src\/linux<\/code><\/pre>\n\n\n\n<p class=\"wp-block-paragraph\">Ou en ligne : <a class=\"\" href=\"https:\/\/github.com\/torvalds\/linux\">https:\/\/github.com\/torvalds\/linux<\/a><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\ud83e\udde0 1. C\u2019est quoi un noyau (kernel) ? Imaginez un ordinateur comme un orchestre : En bref : Le noyau est le programme central d\u2019un syst\u00e8me d\u2019exploitation. Il fait le [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"parent":0,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_crdt_document":"","_uag_custom_page_level_css":"","footnotes":""},"class_list":["post-1181","page","type-page","status-publish","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Le noyau (KERNEL) - workboot<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/workboot.fr\/ciela\/le-noyau-kernel\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Le noyau (KERNEL) - workboot\" \/>\n<meta property=\"og:description\" content=\"\ud83e\udde0 1. C\u2019est quoi un noyau (kernel) ? 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