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sociaux","\u002Fsnt-2nde\u002Fsc-reseaux-sociaux","0.snt-2nde\u002Fsc-reseaux-sociaux\u002F0.index",[71,72,76,80,84,88],{"title":67,"path":68,"stem":69},{"title":73,"path":74,"stem":75},"Panorama des réseaux sociaux","\u002Fsnt-2nde\u002Fsc-reseaux-sociaux\u002Fpanorama-rs","0.snt-2nde\u002Fsc-reseaux-sociaux\u002F1.panorama-rs",{"title":77,"path":78,"stem":79},"Identité numérique et authentification","\u002Fsnt-2nde\u002Fsc-reseaux-sociaux\u002Fidentite-numerique","0.snt-2nde\u002Fsc-reseaux-sociaux\u002F2.identite-numerique",{"title":81,"path":82,"stem":83},"Le modèle économique des réseaux sociaux","\u002Fsnt-2nde\u002Fsc-reseaux-sociaux\u002Fmodele-economique","0.snt-2nde\u002Fsc-reseaux-sociaux\u002F3.modele-economique",{"title":85,"path":86,"stem":87},"Petit monde et graphes","\u002Fsnt-2nde\u002Fsc-reseaux-sociaux\u002Fpetit-monde-graphes","0.snt-2nde\u002Fsc-reseaux-sociaux\u002F4.petit-monde-graphes",{"title":89,"path":90,"stem":91},"La cyberviolence","\u002Fsnt-2nde\u002Fsc-reseaux-sociaux\u002Fcyberviolence","0.snt-2nde\u002Fsc-reseaux-sociaux\u002F5.cyberviolence",{"title":93,"path":94,"stem":95,"children":96},"Les données structurées et leur traitement","\u002Fsnt-2nde\u002Fsd-donnees-structurees","0.snt-2nde\u002Fsd-donnees-structurees\u002F0.index",[97,98,102,106,110,114],{"title":93,"path":94,"stem":95},{"title":99,"path":100,"stem":101},"Données et formats","\u002Fsnt-2nde\u002Fsd-donnees-structurees\u002Fdonnees-formats","0.snt-2nde\u002Fsd-donnees-structurees\u002F1.donnees-formats",{"title":103,"path":104,"stem":105},"Données structurées","\u002Fsnt-2nde\u002Fsd-donnees-structurees\u002Fdonnees-structurees","0.snt-2nde\u002Fsd-donnees-structurees\u002F2.donnees-structurees",{"title":107,"path":108,"stem":109},"Métadonnées","\u002Fsnt-2nde\u002Fsd-donnees-structurees\u002Fmetadonnees","0.snt-2nde\u002Fsd-donnees-structurees\u002F3.metadonnees",{"title":111,"path":112,"stem":113},"Traitement de tables","\u002Fsnt-2nde\u002Fsd-donnees-structurees\u002Ftraitement-tables","0.snt-2nde\u002Fsd-donnees-structurees\u002F4.traitement-tables",{"title":115,"path":116,"stem":117},"Le cloud","\u002Fsnt-2nde\u002Fsd-donnees-structurees\u002Fcloud","0.snt-2nde\u002Fsd-donnees-structurees\u002F5.cloud",{"title":119,"path":120,"stem":121,"children":122},"Localisation, cartographie et mobilité","\u002Fsnt-2nde\u002Fse-localisation-cartographie","0.snt-2nde\u002Fse-localisation-cartographie\u002F0.index",[123,124,128,132,136,140],{"title":119,"path":120,"stem":121},{"title":125,"path":126,"stem":127},"GPS et Galileo — se situer grâce aux satellites","\u002Fsnt-2nde\u002Fse-localisation-cartographie\u002Fgps-galileo","0.snt-2nde\u002Fse-localisation-cartographie\u002F1.gps-galileo",{"title":129,"path":130,"stem":131},"Décoder une trame NMEA","\u002Fsnt-2nde\u002Fse-localisation-cartographie\u002Ftrame-nmea","0.snt-2nde\u002Fse-localisation-cartographie\u002F2.trame-nmea",{"title":133,"path":134,"stem":135},"Cartes numériques — GeoPortail et OpenStreetMap","\u002Fsnt-2nde\u002Fse-localisation-cartographie\u002Fcartes-numeriques","0.snt-2nde\u002Fse-localisation-cartographie\u002F3.cartes-numeriques",{"title":137,"path":138,"stem":139},"Itinéraires et graphes","\u002Fsnt-2nde\u002Fse-localisation-cartographie\u002Fitineraires-graphes","0.snt-2nde\u002Fse-localisation-cartographie\u002F4.itineraires-graphes",{"title":141,"path":142,"stem":143},"Confidentialité de la position","\u002Fsnt-2nde\u002Fse-localisation-cartographie\u002Fconfidentialite-position","0.snt-2nde\u002Fse-localisation-cartographie\u002F5.confidentialite-position",{"title":145,"path":146,"stem":147,"children":148},"Informatique embarquée et objets connectés","\u002Fsnt-2nde\u002Fsf-info-embarquee","0.snt-2nde\u002Fsf-info-embarquee\u002F0.index",[149,150,154,158],{"title":145,"path":146,"stem":147},{"title":151,"path":152,"stem":153},"Systèmes informatiques embarqués","\u002Fsnt-2nde\u002Fsf-info-embarquee\u002Fsystemes-embarques","0.snt-2nde\u002Fsf-info-embarquee\u002F1.systemes-embarques",{"title":155,"path":156,"stem":157},"Capteurs et actionneurs","\u002Fsnt-2nde\u002Fsf-info-embarquee\u002Fcapteurs-actionneurs","0.snt-2nde\u002Fsf-info-embarquee\u002F2.capteurs-actionneurs",{"title":159,"path":160,"stem":161},"IHM et objets connectés","\u002Fsnt-2nde\u002Fsf-info-embarquee\u002Fihm-objet-connecte","0.snt-2nde\u002Fsf-info-embarquee\u002F3.ihm-objet-connecte",{"title":163,"path":164,"stem":165,"children":166},"Photographie numérique","\u002Fsnt-2nde\u002Fsg-photo-numerique","0.snt-2nde\u002Fsg-photo-numerique\u002F0.index",[167,168,172,176,180],{"title":163,"path":164,"stem":165},{"title":169,"path":170,"stem":171},"Photosites, pixels et résolution","\u002Fsnt-2nde\u002Fsg-photo-numerique\u002Fpixels-resolution","0.snt-2nde\u002Fsg-photo-numerique\u002F1.pixels-resolution",{"title":173,"path":174,"stem":175},"Les algorithmes de l'appareil photo","\u002Fsnt-2nde\u002Fsg-photo-numerique\u002Falgorithmes-photo","0.snt-2nde\u002Fsg-photo-numerique\u002F2.algorithmes-photo",{"title":177,"path":178,"stem":179},"Les métadonnées EXIF","\u002Fsnt-2nde\u002Fsg-photo-numerique\u002Fmetadonnees-exif","0.snt-2nde\u002Fsg-photo-numerique\u002F3.metadonnees-exif",{"title":181,"path":182,"stem":183},"Traiter une image en Python","\u002Fsnt-2nde\u002Fsg-photo-numerique\u002Ftraitement-rgb","0.snt-2nde\u002Fsg-photo-numerique\u002F4.traitement-rgb",{"title":185,"path":186,"stem":187,"children":188},"Notions transversales de programmation","\u002Fsnt-2nde\u002Fsh-prog-notions","0.snt-2nde\u002Fsh-prog-notions\u002F0.index",[189,190,194,198,202],{"title":185,"path":186,"stem":187},{"title":191,"path":192,"stem":193},"Séquences d'instructions et variables","\u002Fsnt-2nde\u002Fsh-prog-notions\u002Fsequences-affectations","0.snt-2nde\u002Fsh-prog-notions\u002F1.sequences-affectations",{"title":195,"path":196,"stem":197},"Instructions conditionnelles","\u002Fsnt-2nde\u002Fsh-prog-notions\u002Fconditionnelles","0.snt-2nde\u002Fsh-prog-notions\u002F2.conditionnelles",{"title":199,"path":200,"stem":201},"Boucles bornées et non bornées","\u002Fsnt-2nde\u002Fsh-prog-notions\u002Fboucles","0.snt-2nde\u002Fsh-prog-notions\u002F3.boucles",{"title":203,"path":204,"stem":205},"Définitions et appels de fonctions","\u002Fsnt-2nde\u002Fsh-prog-notions\u002Ffonctions","0.snt-2nde\u002Fsh-prog-notions\u002F4.fonctions",{"title":207,"path":208,"stem":209,"children":210},"Démo des widgets MDC","\u002Fsnt-2nde\u002Fzz-demo-widgets","0.snt-2nde\u002Fzz-demo-widgets\u002F0.index",[211,212,216,220],{"title":207,"path":208,"stem":209},{"title":213,"path":214,"stem":215},"Démo statique — callouts, code, BO, illustration","\u002Fsnt-2nde\u002Fzz-demo-widgets\u002Fstatique","0.snt-2nde\u002Fzz-demo-widgets\u002F1.statique",{"title":217,"path":218,"stem":219},"Démo interactive — self-eval et python-snippet","\u002Fsnt-2nde\u002Fzz-demo-widgets\u002Finteractif","0.snt-2nde\u002Fzz-demo-widgets\u002F2.interactif",{"title":221,"path":222,"stem":223},"Démo · 14 widgets de manipulation NSI","\u002Fsnt-2nde\u002Fzz-demo-widgets\u002Fwidgets-manipulation","0.snt-2nde\u002Fzz-demo-widgets\u002F3.widgets-manipulation",{"title":225,"path":226,"stem":227,"children":228},"NSI — Première","\u002Fnsi-1ere","1.nsi-1ere\u002F0.index",[229,230,234,256,282,304,328,354,380,410],{"title":225,"path":226,"stem":227},{"title":231,"path":232,"stem":233},"Relecture pédagogique — 8 chapitres NSI 1ère (PA → PH)","\u002Fnsi-1ere\u002Freview","1.nsi-1ere\u002FREVIEW",{"title":235,"path":236,"stem":237,"children":238},"Histoire de l'informatique","\u002Fnsi-1ere\u002Fpa-histoire-info","1.nsi-1ere\u002Fpa-histoire-info\u002F0.index",[239,240,244,248,252],{"title":235,"path":236,"stem":237},{"title":241,"path":242,"stem":243},"De la préantiquité aux machines à calculer","\u002Fnsi-1ere\u002Fpa-histoire-info\u002Fpreantiquite-aux-machines","1.nsi-1ere\u002Fpa-histoire-info\u002F1.preantiquite-aux-machines",{"title":245,"path":246,"stem":247},"La machine universelle (1930-1950)","\u002Fnsi-1ere\u002Fpa-histoire-info\u002Fmachine-universelle","1.nsi-1ere\u002Fpa-histoire-info\u002F2.machine-universelle",{"title":249,"path":250,"stem":251},"Les ordinateurs modernes (1947-1990)","\u002Fnsi-1ere\u002Fpa-histoire-info\u002Fordinateurs-modernes","1.nsi-1ere\u002Fpa-histoire-info\u002F3.ordinateurs-modernes",{"title":253,"path":254,"stem":255},"Réseaux, Web et IA (1969 à aujourd'hui)","\u002Fnsi-1ere\u002Fpa-histoire-info\u002Freseaux-et-web","1.nsi-1ere\u002Fpa-histoire-info\u002F4.reseaux-et-web",{"title":257,"path":258,"stem":259,"children":260},"Représentation des données — types et valeurs","\u002Fnsi-1ere\u002Fpb-types-valeurs","1.nsi-1ere\u002Fpb-types-valeurs\u002F0.index",[261,262,266,270,274,278],{"title":257,"path":258,"stem":259},{"title":263,"path":264,"stem":265},"Bases de numération et entiers positifs","\u002Fnsi-1ere\u002Fpb-types-valeurs\u002Fbases-entiers-positifs","1.nsi-1ere\u002Fpb-types-valeurs\u002F1.bases-entiers-positifs",{"title":267,"path":268,"stem":269},"Entiers relatifs et complément à deux","\u002Fnsi-1ere\u002Fpb-types-valeurs\u002Fentiers-relatifs","1.nsi-1ere\u002Fpb-types-valeurs\u002F2.entiers-relatifs",{"title":271,"path":272,"stem":273},"Nombres flottants et virgule flottante","\u002Fnsi-1ere\u002Fpb-types-valeurs\u002Fflottants","1.nsi-1ere\u002Fpb-types-valeurs\u002F3.flottants",{"title":275,"path":276,"stem":277},"Textes et encodages — ASCII, ISO-8859-1, Unicode","\u002Fnsi-1ere\u002Fpb-types-valeurs\u002Ftextes-encodages","1.nsi-1ere\u002Fpb-types-valeurs\u002F4.textes-encodages",{"title":279,"path":280,"stem":281},"Valeurs booléennes et opérateurs logiques","\u002Fnsi-1ere\u002Fpb-types-valeurs\u002Fbooleens","1.nsi-1ere\u002Fpb-types-valeurs\u002F5.booleens",{"title":283,"path":284,"stem":285,"children":286},"Représentation des données : types construits","\u002Fnsi-1ere\u002Fpc-types-construits","1.nsi-1ere\u002Fpc-types-construits\u002F0.index",[287,288,292,296,300],{"title":283,"path":284,"stem":285},{"title":289,"path":290,"stem":291},"Tableaux et listes","\u002Fnsi-1ere\u002Fpc-types-construits\u002Ftableaux-listes","1.nsi-1ere\u002Fpc-types-construits\u002F1.tableaux-listes",{"title":293,"path":294,"stem":295},"Listes en compréhension","\u002Fnsi-1ere\u002Fpc-types-construits\u002Fcomprehension","1.nsi-1ere\u002Fpc-types-construits\u002F2.comprehension",{"title":297,"path":298,"stem":299},"Tuples et p-uplets nommés","\u002Fnsi-1ere\u002Fpc-types-construits\u002Ftuples","1.nsi-1ere\u002Fpc-types-construits\u002F3.tuples",{"title":301,"path":302,"stem":303},"Dictionnaires","\u002Fnsi-1ere\u002Fpc-types-construits\u002Fdictionnaires","1.nsi-1ere\u002Fpc-types-construits\u002F4.dictionnaires",{"title":305,"path":306,"stem":307,"children":308},"Traitement de données en tables","\u002Fnsi-1ere\u002Fpd-tables-donnees","1.nsi-1ere\u002Fpd-tables-donnees\u002F0.index",[309,310,314,318,322],{"title":305,"path":306,"stem":307},{"title":311,"path":312,"stem":313},"Tables et CSV","\u002Fnsi-1ere\u002Fpd-tables-donnees\u002Ftables-csv","1.nsi-1ere\u002Fpd-tables-donnees\u002F1.tables-csv",{"title":315,"path":316,"stem":317},"Recherche et filtrage","\u002Fnsi-1ere\u002Fpd-tables-donnees\u002Frecherche","1.nsi-1ere\u002Fpd-tables-donnees\u002F2.recherche",{"title":319,"path":320,"stem":321},"Trier une table","\u002Fnsi-1ere\u002Fpd-tables-donnees\u002Ftri","1.nsi-1ere\u002Fpd-tables-donnees\u002F3.tri",{"title":323,"path":324,"stem":325,"children":326},"Fusion et indexation","\u002Fnsi-1ere\u002Fpd-tables-donnees\u002Ffusion-indexation","1.nsi-1ere\u002Fpd-tables-donnees\u002F4.fusion-indexation",[327],{"title":323,"path":324,"stem":325},{"title":329,"path":330,"stem":331,"children":332},"IHM sur le Web","\u002Fnsi-1ere\u002Fpe-ihm-web","1.nsi-1ere\u002Fpe-ihm-web\u002F0.index",[333,334,338,342,346,350],{"title":329,"path":330,"stem":331},{"title":335,"path":336,"stem":337},"HTML et CSS — rappel de structure","\u002Fnsi-1ere\u002Fpe-ihm-web\u002Fhtml-css-bases","1.nsi-1ere\u002Fpe-ihm-web\u002F1.html-css-bases",{"title":339,"path":340,"stem":341},"Formulaires HTML","\u002Fnsi-1ere\u002Fpe-ihm-web\u002Fformulaires","1.nsi-1ere\u002Fpe-ihm-web\u002F2.formulaires",{"title":343,"path":344,"stem":345},"Événements JavaScript","\u002Fnsi-1ere\u002Fpe-ihm-web\u002Fevenements-js","1.nsi-1ere\u002Fpe-ihm-web\u002F3.evenements-js",{"title":347,"path":348,"stem":349},"Manipulation du DOM","\u002Fnsi-1ere\u002Fpe-ihm-web\u002Fdom-interaction","1.nsi-1ere\u002Fpe-ihm-web\u002F4.dom-interaction",{"title":351,"path":352,"stem":353},"Client, serveur et HTTP","\u002Fnsi-1ere\u002Fpe-ihm-web\u002Fclient-serveur-http","1.nsi-1ere\u002Fpe-ihm-web\u002F5.client-serveur-http",{"title":355,"path":356,"stem":357,"children":358},"Architectures matérielles et systèmes d'exploitation","\u002Fnsi-1ere\u002Fpf-archi-os","1.nsi-1ere\u002Fpf-archi-os\u002F0.index",[359,360,364,368,372,376],{"title":355,"path":356,"stem":357},{"title":361,"path":362,"stem":363},"Le modèle de von Neumann","\u002Fnsi-1ere\u002Fpf-archi-os\u002Fvon-neumann","1.nsi-1ere\u002Fpf-archi-os\u002F1.von-neumann",{"title":365,"path":366,"stem":367},"Périphériques et interface homme-machine","\u002Fnsi-1ere\u002Fpf-archi-os\u002Fperipheriques-ihm","1.nsi-1ere\u002Fpf-archi-os\u002F2.peripheriques-ihm",{"title":369,"path":370,"stem":371},"Les systèmes d'exploitation","\u002Fnsi-1ere\u002Fpf-archi-os\u002Fsystemes-exploitation","1.nsi-1ere\u002Fpf-archi-os\u002F3.systemes-exploitation",{"title":373,"path":374,"stem":375},"Linux et le shell","\u002Fnsi-1ere\u002Fpf-archi-os\u002Flinux-shell","1.nsi-1ere\u002Fpf-archi-os\u002F4.linux-shell",{"title":377,"path":378,"stem":379},"Réseaux et protocoles","\u002Fnsi-1ere\u002Fpf-archi-os\u002Freseaux","1.nsi-1ere\u002Fpf-archi-os\u002F5.reseaux",{"title":381,"path":382,"stem":383,"children":384},"Langages et programmation","\u002Fnsi-1ere\u002Fpg-langages-prog","1.nsi-1ere\u002Fpg-langages-prog\u002F0.index",[385,386,390,394,398,402,406],{"title":381,"path":382,"stem":383},{"title":387,"path":388,"stem":389},"Diversité et unité des langages de programmation","\u002Fnsi-1ere\u002Fpg-langages-prog\u002Fdiversite-langages","1.nsi-1ere\u002Fpg-langages-prog\u002F1.diversite-langages",{"title":391,"path":392,"stem":393},"Constructions élémentaires","\u002Fnsi-1ere\u002Fpg-langages-prog\u002Fconstructions-elementaires","1.nsi-1ere\u002Fpg-langages-prog\u002F2.constructions-elementaires",{"title":395,"path":396,"stem":397},"Fonctions","\u002Fnsi-1ere\u002Fpg-langages-prog\u002Ffonctions","1.nsi-1ere\u002Fpg-langages-prog\u002F3.fonctions",{"title":399,"path":400,"stem":401},"Spécification d'une fonction","\u002Fnsi-1ere\u002Fpg-langages-prog\u002Fspecification","1.nsi-1ere\u002Fpg-langages-prog\u002F4.specification",{"title":403,"path":404,"stem":405},"Mise au point des programmes","\u002Fnsi-1ere\u002Fpg-langages-prog\u002Fmise-au-point","1.nsi-1ere\u002Fpg-langages-prog\u002F5.mise-au-point",{"title":407,"path":408,"stem":409},"Utilisation de bibliothèques","\u002Fnsi-1ere\u002Fpg-langages-prog\u002Fbibliotheques","1.nsi-1ere\u002Fpg-langages-prog\u002F6.bibliotheques",{"title":411,"path":412,"stem":413,"children":414},"Algorithmique","\u002Fnsi-1ere\u002Fph-algorithmique","1.nsi-1ere\u002Fph-algorithmique\u002F0.index",[415,416,420,424,428,432,436],{"title":411,"path":412,"stem":413},{"title":417,"path":418,"stem":419},"Parcours séquentiel d'un tableau","\u002Fnsi-1ere\u002Fph-algorithmique\u002Fparcours-sequentiel","1.nsi-1ere\u002Fph-algorithmique\u002F1.parcours-sequentiel",{"title":421,"path":422,"stem":423},"Bases de la complexité","\u002Fnsi-1ere\u002Fph-algorithmique\u002Fcomplexite-bases","1.nsi-1ere\u002Fph-algorithmique\u002F2.complexite-bases",{"title":425,"path":426,"stem":427},"Tris par sélection et par insertion","\u002Fnsi-1ere\u002Fph-algorithmique\u002Ftris","1.nsi-1ere\u002Fph-algorithmique\u002F3.tris",{"title":429,"path":430,"stem":431},"Recherche dichotomique","\u002Fnsi-1ere\u002Fph-algorithmique\u002Fdichotomie","1.nsi-1ere\u002Fph-algorithmique\u002F4.dichotomie",{"title":433,"path":434,"stem":435},"Algorithmes gloutons","\u002Fnsi-1ere\u002Fph-algorithmique\u002Fgloutons","1.nsi-1ere\u002Fph-algorithmique\u002F5.gloutons",{"title":437,"path":438,"stem":439},"Les k plus proches voisins (k-NN)","\u002Fnsi-1ere\u002Fph-algorithmique\u002Fknn","1.nsi-1ere\u002Fph-algorithmique\u002F6.knn",{"title":441,"path":442,"stem":443,"children":444},"NSI — Terminale","\u002Fnsi-tale","2.nsi-tale\u002F0.index",[445,446,450,476,498,536,560],{"title":441,"path":442,"stem":443},{"title":447,"path":448,"stem":449},"Review pédagogique — chapitres NSI Terminale (TA, TB, TC, TD, TE)","\u002Fnsi-tale\u002Freview","2.nsi-tale\u002FREVIEW",{"title":451,"path":452,"stem":453,"children":454},"Structures de données","\u002Fnsi-tale\u002Fta-structures-donnees","2.nsi-tale\u002Fta-structures-donnees\u002F0.index",[455,456,460,464,468,472],{"title":451,"path":452,"stem":453},{"title":457,"path":458,"stem":459},"Objet, classe, interface","\u002Fnsi-tale\u002Fta-structures-donnees\u002Finterface-implementation","2.nsi-tale\u002Fta-structures-donnees\u002F1.interface-implementation",{"title":461,"path":462,"stem":463},"Implémenter une structure — l'exemple de la file FIFO","\u002Fnsi-tale\u002Fta-structures-donnees\u002Fimplementer-une-structure","2.nsi-tale\u002Fta-structures-donnees\u002F2.implementer-une-structure",{"title":465,"path":466,"stem":467},"Listes, piles, files, dictionnaires","\u002Fnsi-tale\u002Fta-structures-donnees\u002Flistes-piles-files-dict","2.nsi-tale\u002Fta-structures-donnees\u002F3.listes-piles-files-dict",{"title":469,"path":470,"stem":471},"Arbres binaires","\u002Fnsi-tale\u002Fta-structures-donnees\u002Farbres-binaires","2.nsi-tale\u002Fta-structures-donnees\u002F4.arbres-binaires",{"title":473,"path":474,"stem":475},"Graphes","\u002Fnsi-tale\u002Fta-structures-donnees\u002Fgraphes","2.nsi-tale\u002Fta-structures-donnees\u002F5.graphes",{"title":477,"path":478,"stem":479,"children":480},"Bases de données","\u002Fnsi-tale\u002Ftb-bases-de-donnees","2.nsi-tale\u002Ftb-bases-de-donnees\u002F0.index",[481,482,486,490,494],{"title":477,"path":478,"stem":479},{"title":483,"path":484,"stem":485},"Le modèle relationnel","\u002Fnsi-tale\u002Ftb-bases-de-donnees\u002Fmodele-relationnel","2.nsi-tale\u002Ftb-bases-de-donnees\u002F1.modele-relationnel",{"title":487,"path":488,"stem":489},"Bases de données relationnelles et anomalies de schéma","\u002Fnsi-tale\u002Ftb-bases-de-donnees\u002Fbase-relationnelle","2.nsi-tale\u002Ftb-bases-de-donnees\u002F2.base-relationnelle",{"title":491,"path":492,"stem":493},"Le langage SQL","\u002Fnsi-tale\u002Ftb-bases-de-donnees\u002Fsql","2.nsi-tale\u002Ftb-bases-de-donnees\u002F3.sql",{"title":495,"path":496,"stem":497},"Les systèmes de gestion de bases de données","\u002Fnsi-tale\u002Ftb-bases-de-donnees\u002Fsgbd","2.nsi-tale\u002Ftb-bases-de-donnees\u002F4.sgbd",{"title":499,"path":500,"stem":501,"children":502},"Architectures matérielles, systèmes d'exploitation et réseaux","\u002Fnsi-tale\u002Ftc-archi-os-reseaux","2.nsi-tale\u002Ftc-archi-os-reseaux\u002F0.index",[503,504,508,512,516,520,524,528,532],{"title":499,"path":500,"stem":501},{"title":505,"path":506,"stem":507},"Le système sur puce (SoC)","\u002Fnsi-tale\u002Ftc-archi-os-reseaux\u002Fsysteme-sur-puce","2.nsi-tale\u002Ftc-archi-os-reseaux\u002F1.systeme-sur-puce",{"title":509,"path":510,"stem":511},"Processus et ordonnancement par l'OS","\u002Fnsi-tale\u002Ftc-archi-os-reseaux\u002Fprocessus-os","2.nsi-tale\u002Ftc-archi-os-reseaux\u002F2.processus-os",{"title":513,"path":514,"stem":515},"L'interblocage (deadlock)","\u002Fnsi-tale\u002Ftc-archi-os-reseaux\u002Finterblocage","2.nsi-tale\u002Ftc-archi-os-reseaux\u002F3.interblocage",{"title":517,"path":518,"stem":519},"Principes du routage","\u002Fnsi-tale\u002Ftc-archi-os-reseaux\u002Froutage-principes","2.nsi-tale\u002Ftc-archi-os-reseaux\u002F4.routage-principes",{"title":521,"path":522,"stem":523},"Protocoles de routage RIP et OSPF","\u002Fnsi-tale\u002Ftc-archi-os-reseaux\u002Fprotocoles-rip-ospf","2.nsi-tale\u002Ftc-archi-os-reseaux\u002F5.protocoles-rip-ospf",{"title":525,"path":526,"stem":527},"Chiffrement symétrique","\u002Fnsi-tale\u002Ftc-archi-os-reseaux\u002Fchiffrement-symetrique","2.nsi-tale\u002Ftc-archi-os-reseaux\u002F6.chiffrement-symetrique",{"title":529,"path":530,"stem":531},"Chiffrement asymétrique","\u002Fnsi-tale\u002Ftc-archi-os-reseaux\u002Fchiffrement-asymetrique","2.nsi-tale\u002Ftc-archi-os-reseaux\u002F7.chiffrement-asymetrique",{"title":533,"path":534,"stem":535},"HTTPS — l'échange de clé symétrique","\u002Fnsi-tale\u002Ftc-archi-os-reseaux\u002Fhttps-tls","2.nsi-tale\u002Ftc-archi-os-reseaux\u002F8.https-tls",{"title":381,"path":537,"stem":538,"children":539},"\u002Fnsi-tale\u002Ftd-langages-prog","2.nsi-tale\u002Ftd-langages-prog\u002F0.index",[540,541,544,548,552,556],{"title":381,"path":537,"stem":538},{"title":403,"path":542,"stem":543},"\u002Fnsi-tale\u002Ftd-langages-prog\u002Fmise-au-point","2.nsi-tale\u002Ftd-langages-prog\u002F1.mise-au-point",{"title":545,"path":546,"stem":547},"Modularité","\u002Fnsi-tale\u002Ftd-langages-prog\u002Fmodularite","2.nsi-tale\u002Ftd-langages-prog\u002F2.modularite",{"title":549,"path":550,"stem":551},"Récursivité","\u002Fnsi-tale\u002Ftd-langages-prog\u002Frecursivite","2.nsi-tale\u002Ftd-langages-prog\u002F3.recursivite",{"title":553,"path":554,"stem":555},"Paradigmes de programmation","\u002Fnsi-tale\u002Ftd-langages-prog\u002Fparadigmes","2.nsi-tale\u002Ftd-langages-prog\u002F4.paradigmes",{"title":557,"path":558,"stem":559},"Programme comme donnée — calculabilité et indécidabilité","\u002Fnsi-tale\u002Ftd-langages-prog\u002Fprogramme-comme-donnee","2.nsi-tale\u002Ftd-langages-prog\u002F5.programme-comme-donnee",{"title":411,"path":561,"stem":562,"children":563},"\u002Fnsi-tale\u002Fte-algorithmique","2.nsi-tale\u002Fte-algorithmique\u002F0.index",[564,565,569,573,577,581],{"title":411,"path":561,"stem":562},{"title":566,"path":567,"stem":568},"Algorithmes sur les arbres binaires","\u002Fnsi-tale\u002Fte-algorithmique\u002Farbres-binaires-algos","2.nsi-tale\u002Fte-algorithmique\u002F1.arbres-binaires-algos",{"title":570,"path":571,"stem":572},"Parcours de graphes — DFS, BFS, cycles, chemins","\u002Fnsi-tale\u002Fte-algorithmique\u002Fgraphes-parcours","2.nsi-tale\u002Fte-algorithmique\u002F2.graphes-parcours",{"title":574,"path":575,"stem":576},"Diviser pour régner","\u002Fnsi-tale\u002Fte-algorithmique\u002Fdiviser-pour-regner","2.nsi-tale\u002Fte-algorithmique\u002F3.diviser-pour-regner",{"title":578,"path":579,"stem":580},"Programmation dynamique","\u002Fnsi-tale\u002Fte-algorithmique\u002Fprogrammation-dynamique","2.nsi-tale\u002Fte-algorithmique\u002F4.programmation-dynamique",{"title":582,"path":583,"stem":584},"Recherche textuelle — l'algorithme de Boyer-Moore","\u002Fnsi-tale\u002Fte-algorithmique\u002Frecherche-textuelle","2.nsi-tale\u002Fte-algorithmique\u002F5.recherche-textuelle",{"id":586,"title":115,"bo":587,"body":589,"description":1240,"eval":1241,"extension":1242,"labo":1241,"meta":1243,"navigation":1244,"path":116,"quizzes":1245,"readingTime":1252,"seo":1253,"stem":117,"tp":1241,"__hash__":1254},"cours\u002F0.snt-2nde\u002Fsd-donnees-structurees\u002F5.cloud.md",[588],"SD01",{"type":590,"value":591,"toc":1225},"minimark",[592,597,614,617,621,637,640,740,750,754,761,767,770,802,808,812,819,849,871,888,931,960,970,974,977,982,985,988,1008,1012,1019,1063,1066,1077,1086,1090,1097,1123,1127,1181,1193,1215,1219],[593,594,596],"h2",{"id":595},"introduction","Introduction",[598,599,600,601,605,606,609,610,613],"p",{},"Lorsque votre téléphone synchronise automatiquement une photo, ou qu'un\ntravail scolaire est partagé via un dossier en ligne, on dit volontiers que\nvos fichiers vivent « dans le cloud » ou « dans le nuage ». La métaphore est\npoétique mais trompeuse : vos données sont stockées sur des ",[602,603,604],"strong",{},"disques durs\nbien physiques",", dans des ",[602,607,608],{},"bâtiments réels",", alimentés par de\nl'",[602,611,612],{},"électricité réelle",". Ce cours vous propose de redescendre du nuage et\nde mesurer ce qu'il y a derrière.",[615,616],"bo-ref",{"code":588},[593,618,620],{"id":619},"le-cloud-quest-ce-que-cest","Le cloud, qu'est-ce que c'est ?",[598,622,623,624,627,628,632,633,636],{},"Le ",[602,625,626],{},"cloud"," (ou ",[629,630,631],"em",{},"informatique en nuage",") désigne l'",[602,634,635],{},"accès à distance",", via\nInternet, à des ressources informatiques — espace de stockage, puissance de\ncalcul, logiciels — hébergées sur des serveurs gérés par un prestataire.",[598,638,639],{},"Quelques services que vous connaissez sans doute :",[641,642,643,659],"table",{},[644,645,646],"thead",{},[647,648,649,653,656],"tr",{},[650,651,652],"th",{},"Service",[650,654,655],{},"Usage principal",[650,657,658],{},"Prestataire",[660,661,662,676,689,702,714,727],"tbody",{},[647,663,664,670,673],{},[665,666,667],"td",{},[602,668,669],{},"iCloud",[665,671,672],{},"Sauvegarde téléphone",[665,674,675],{},"Apple",[647,677,678,683,686],{},[665,679,680],{},[602,681,682],{},"Google Drive",[665,684,685],{},"Stockage de fichiers, documents partagés",[665,687,688],{},"Google",[647,690,691,696,699],{},[665,692,693],{},[602,694,695],{},"OneDrive",[665,697,698],{},"Stockage Microsoft",[665,700,701],{},"Microsoft",[647,703,704,709,712],{},[665,705,706],{},[602,707,708],{},"Dropbox",[665,710,711],{},"Stockage et synchronisation",[665,713,708],{},[647,715,716,721,724],{},[665,717,718],{},[602,719,720],{},"kDrive",[665,722,723],{},"Stockage souverain",[665,725,726],{},"Infomaniak (Suisse)",[647,728,729,734,737],{},[665,730,731],{},[602,732,733],{},"Nextcloud",[665,735,736],{},"Cloud auto-hébergeable",[665,738,739],{},"Logiciel libre",[741,742,743],"note",{},[598,744,745,746,749],{},"Le cloud n'est pas un seul réseau : c'est l'",[602,747,748],{},"ensemble des services"," qui\noffrent du stockage ou du calcul à distance, accessibles depuis Internet.",[593,751,753],{"id":752},"où-vit-physiquement-le-nuage","Où vit physiquement le nuage ?",[598,755,756,757,760],{},"Les services de cloud reposent sur des ",[602,758,759],{},"datacenters"," (centres de données) :\nde vastes bâtiments hébergeant des milliers de serveurs alignés en armoires.",[762,763],"illustration",{"alt":764,"kind":765,"prompt":766},"Vue intérieure d'un datacenter","photo","Photo type d'un datacenter : longues rangées d'armoires noires de serveurs, LED bleues, sol en faux-plancher, éclairage froid, perspective d'une allée",[598,768,769],{},"Caractéristiques typiques d'un grand datacenter :",[771,772,773,780,790,796],"ul",{},[774,775,776,779],"li",{},[602,777,778],{},"Surface"," : plusieurs milliers, parfois dizaines de milliers de m².",[774,781,782,785,786,789],{},[602,783,784],{},"Consommation électrique"," : de l'ordre de ",[602,787,788],{},"dizaines de MW"," pour un\ngrand site (équivalent à la consommation d'une petite ville).",[774,791,792,795],{},[602,793,794],{},"Refroidissement"," : indispensable, car les serveurs dégagent énormément\nde chaleur. C'est souvent le second poste de consommation.",[774,797,798,801],{},[602,799,800],{},"Redondance"," : doubles alimentations, batteries de secours, groupes\nélectrogènes, copies des données.",[803,804,805],"tip",{},[598,806,807],{},"Quand vous « envoyez une photo dans le cloud », elle voyage par câble fibre\noptique jusqu'à un datacenter qui peut se trouver en France, en Irlande, aux\nPays-Bas ou aux États-Unis. Elle y est stockée, recopiée sur plusieurs\ndisques, et ne « bouge » plus tant que vous ne la rappelez pas.",[593,809,811],{"id":810},"le-coût-énergétique-ordres-de-grandeur","Le coût énergétique : ordres de grandeur",[598,813,814,815,818],{},"Combien d'énergie consomme tout cela ? Les chiffres bruts ne disent pas\ngrand-chose si on ne les compare pas à quelque chose de connu. Voici les\nordres de grandeur (estimations 2024–2025), ",[602,816,817],{},"avec un repère humain à chaque\nfois",".",[741,820,821,824],{},[598,822,823],{},"Petit kit de conversion utile pour la suite :",[771,825,826,833,842],{},[774,827,828,829,832],{},"Un foyer français consomme en moyenne ",[602,830,831],{},"≈ 4 700 kWh\u002Fan"," d'électricité.",[774,834,835,838,839,818],{},[602,836,837],{},"1 GWh"," = 1 000 000 kWh ≈ la consommation annuelle de ",[602,840,841],{},"environ 200\nfoyers",[774,843,844,845,848],{},"Un téléphone se recharge avec ",[602,846,847],{},"≈ 0,01 kWh"," par charge complète.",[850,851,854,860],"card",{"icon":852,"title":853},"i-lucide-zap","Datacenters : la consommation mondiale",[598,855,856,857,818],{},"Les datacenters de la planète consomment environ ",[602,858,859],{},"1 à 2 % de l'électricité\nmondiale",[598,861,862,863,866,867,870],{},"C'est l'équivalent de la consommation électrique d'un pays comme\n",[602,864,865],{},"l'Espagne"," ou ",[602,868,869],{},"l'Italie"," — et ce chiffre monte d'année en année avec\nl'essor du streaming, du cloud et de l'intelligence artificielle.",[850,872,875,881],{"icon":873,"title":874},"i-lucide-flag","En France",[598,876,877,878,818],{},"Les datacenters installés sur le territoire représentent environ ",[602,879,880],{},"2 % de la\nconsommation électrique nationale",[598,882,883,884,887],{},"À l'échelle d'une ville : c'est de l'ordre de ",[602,885,886],{},"toute la consommation\ndomestique d'une grande métropole"," comme Lyon ou Marseille.",[850,889,892,903,906,924],{"icon":890,"title":891},"i-lucide-brain","Entraîner un grand modèle d'IA",[598,893,894,895,898,899,902],{},"Entraîner un grand modèle d'IA (type GPT, Gemini, Mistral Large) peut\nconsommer ",[602,896,897],{},"plusieurs GWh"," — disons ",[602,900,901],{},"5 GWh"," en ordre de grandeur, parfois\nbeaucoup plus.",[598,904,905],{},"Cela représente :",[771,907,908,915,921],{},[774,909,910,911,914],{},"la ",[602,912,913],{},"consommation annuelle d'environ 1 000 foyers français",",",[774,916,917,918,914],{},"ou de quoi recharger ",[602,919,920],{},"500 millions de téléphones",[774,922,923],{},"ou encore l'énergie d'un petit village pendant un an.",[598,925,926,927,930],{},"Et ce, ",[602,928,929],{},"uniquement pour l'entraînement"," — la phase d'utilisation\n(répondre aux questions des millions d'utilisateurs) consomme en plus, en\npermanence.",[850,932,935,953],{"icon":933,"title":934},"i-lucide-search","Une recherche en ligne",[598,936,937,938,941,942,945,946,949,950,818],{},"Une recherche Google classique = environ ",[602,939,940],{},"0,3 g de CO₂ équivalent",". C'est\nminuscule à l'unité… mais multiplié par ",[602,943,944],{},"8 milliards de recherches par\njour",", cela représente environ ",[602,947,948],{},"2 400 tonnes de CO₂ par jour"," — soit\nl'empreinte de plusieurs vols transatlantiques Paris-New York,\n",[602,951,952],{},"chaque jour",[598,954,955,956,959],{},"Et une question posée à une IA générative est de l'ordre de ",[602,957,958],{},"10 fois plus\ncoûteuse"," qu'une recherche classique.",[961,962,963],"warning",{},[598,964,965,966,969],{},"Ces chiffres évoluent vite et dépendent du mix électrique du pays\n(nucléaire, charbon, renouvelables) et de l'efficacité du datacenter. Mais\nl'ordre de grandeur — ",[602,967,968],{},"quelques pour-cent de l'électricité mondiale, en\nforte croissance"," — est désormais consensuel.",[593,971,973],{"id":972},"synchronisation-partage-paramétrage","Synchronisation, partage, paramétrage",[598,975,976],{},"Concrètement, à votre échelle, le cloud propose trois fonctionnalités utiles :",[978,979,981],"h3",{"id":980},"sauvegarde-et-synchronisation","Sauvegarde et synchronisation",[598,983,984],{},"Un dossier de votre ordinateur est automatiquement copié sur les serveurs du\nprestataire. Les modifications dans un sens (ordinateur → cloud) ou dans\nl'autre (cloud → ordinateur) sont propagées en quelques secondes.",[598,986,987],{},"À paramétrer attentivement :",[771,989,990,996,1002],{},[774,991,992,995],{},[602,993,994],{},"Synchroniser quoi ?"," Tout le compte ou seulement certains dossiers.",[774,997,998,1001],{},[602,999,1000],{},"Sur quels appareils ?"," Téléphone, ordinateur, tablette.",[774,1003,1004,1007],{},[602,1005,1006],{},"Connexion utilisée ?"," Wi-Fi seulement, ou aussi 4G\u002F5G ? Important pour\nne pas consommer son forfait mobile.",[978,1009,1011],{"id":1010},"partage","Partage",[598,1013,1014,1015,1018],{},"Vous pouvez donner accès à un fichier ou un dossier à d'autres personnes,\ngénéralement via un ",[602,1016,1017],{},"lien",". Le partage se règle finement :",[641,1020,1021,1031],{},[644,1022,1023],{},[647,1024,1025,1028],{},[650,1026,1027],{},"Droit accordé",[650,1029,1030],{},"Qui peut faire quoi",[660,1032,1033,1043,1053],{},[647,1034,1035,1040],{},[665,1036,1037],{},[602,1038,1039],{},"Lecture",[665,1041,1042],{},"Voir le fichier, sans modifier.",[647,1044,1045,1050],{},[665,1046,1047],{},[602,1048,1049],{},"Commentaire",[665,1051,1052],{},"Voir + ajouter des annotations.",[647,1054,1055,1060],{},[665,1056,1057],{},[602,1058,1059],{},"Modification",[665,1061,1062],{},"Voir + modifier.",[598,1064,1065],{},"Et avec quelle audience :",[771,1067,1068,1071,1074],{},[774,1069,1070],{},"Une personne précise (par e-mail).",[774,1072,1073],{},"Toute personne disposant du lien.",[774,1075,1076],{},"Tout le monde (public).",[961,1078,1079],{},[598,1080,1081,1082,1085],{},"Un lien « public » est ",[602,1083,1084],{},"véritablement public"," : il peut être indexé par\ndes moteurs de recherche. Réservez ce niveau d'accès à ce que vous\nacceptez de voir partagé largement.",[978,1087,1089],{"id":1088},"versionnage","Versionnage",[598,1091,1092,1093,1096],{},"La plupart des clouds conservent l'",[602,1094,1095],{},"historique des versions"," d'un fichier.\nSi vous écrasez par erreur un devoir, vous pouvez en récupérer une version\nprécédente — souvent jusqu'à 30 jours en arrière dans les offres gratuites.",[1098,1099,1103,1110],"self-eval-qcm",{"correct":1100,"explanation":1101,"slug":1102},"1","iCloud signifie que les fichiers sont stockés sur des serveurs Apple, dans des datacenters. Une copie locale peut subsister sur votre téléphone, mais l'original synchronisé vit chez Apple.","cloud-c1",[1104,1105,1107],"template",{"v-slot:question":1106},"",[598,1108,1109],{},"Une photo synchronisée dans iCloud est-elle hébergée chez vous ?",[1104,1111,1112],{"v-slot:choices":1106},[771,1113,1114,1117,1120],{},[774,1115,1116],{},"Oui, sur votre téléphone uniquement",[774,1118,1119],{},"Non, sur des serveurs Apple dans un datacenter",[774,1121,1122],{},"Cela dépend du Wi-Fi",[593,1124,1126],{"id":1125},"avantages-contreparties","Avantages, contreparties",[641,1128,1129,1139],{},[644,1130,1131],{},[647,1132,1133,1136],{},[650,1134,1135],{},"Pour",[650,1137,1138],{},"Contre",[660,1140,1141,1149,1157,1165,1173],{},[647,1142,1143,1146],{},[665,1144,1145],{},"Accès depuis n'importe quel appareil",[665,1147,1148],{},"Dépendance à une connexion Internet",[647,1150,1151,1154],{},[665,1152,1153],{},"Sauvegarde automatique en cas de perte du téléphone",[665,1155,1156],{},"Dépendance au prestataire (panne, fermeture)",[647,1158,1159,1162],{},[665,1160,1161],{},"Partage facile avec d'autres personnes",[665,1163,1164],{},"Données potentiellement exposées",[647,1166,1167,1170],{},[665,1168,1169],{},"Pas de matériel à gérer soi-même",[665,1171,1172],{},"Coût énergétique élevé à l'échelle mondiale",[647,1174,1175,1178],{},[665,1176,1177],{},"Synchronisation transparente",[665,1179,1180],{},"Risque de fuite ou de piratage du compte",[741,1182,1183],{},[598,1184,1185,1188,1189,1192],{},[602,1186,1187],{},"Une bonne pratique"," : ne jamais avoir ",[602,1190,1191],{},"uniquement"," ses données dans le\ncloud. Conserver une copie locale (sur l'ordinateur ou un disque externe)\nprémunit contre les défaillances du service, la suspension du compte ou\nl'erreur de manipulation.",[1098,1194,1197,1202],{"correct":1100,"explanation":1195,"slug":1196},"Le fonctionnement et le refroidissement des datacenters représentent quelques pour-cent de l'électricité mondiale — un poste en forte croissance.","cloud-c2",[1104,1198,1199],{"v-slot:question":1106},[598,1200,1201],{},"Parmi les contreparties du cloud, laquelle concerne directement l'environnement ?",[1104,1203,1204],{"v-slot:choices":1106},[771,1205,1206,1209,1212],{},[774,1207,1208],{},"La dépendance à Internet",[774,1210,1211],{},"Le coût énergétique des datacenters",[774,1213,1214],{},"Le partage par lien public",[593,1216,1218],{"id":1217},"pour-aller-plus-loin","Pour aller plus loin",[598,1220,1221,1222,1224],{},"L'",[602,1223,631],{}," rend invisible une infrastructure colossale.\nComprendre où vivent réellement vos données, ce qu'elles coûtent à stocker\net qui y a accès, c'est un prérequis pour faire des choix éclairés —\nchoisir un service européen plutôt qu'américain, héberger soi-même une partie\nde ses données, ou simplement faire le tri dans ses photos pour limiter\nl'empreinte de sa propre vie numérique.",{"title":1106,"searchDepth":1226,"depth":1226,"links":1227},2,[1228,1229,1230,1231,1232,1238,1239],{"id":595,"depth":1226,"text":596},{"id":619,"depth":1226,"text":620},{"id":752,"depth":1226,"text":753},{"id":810,"depth":1226,"text":811},{"id":972,"depth":1226,"text":973,"children":1233},[1234,1236,1237],{"id":980,"depth":1235,"text":981},3,{"id":1010,"depth":1235,"text":1011},{"id":1088,"depth":1235,"text":1089},{"id":1125,"depth":1226,"text":1126},{"id":1217,"depth":1226,"text":1218},"Vos données ne sont jamais « dans les nuages ». Comprendre où elles vivent vraiment, ce que coûte leur stockage et comment les partager sans s'oublier.",null,"md",{},true,[1246,1250],{"slug":1102,"kind":1247,"question":1109,"choices":1248,"correct":1100,"multi":1249,"explanation":1101},"qcm",[1116,1119,1122],false,{"slug":1196,"kind":1247,"question":1201,"choices":1251,"correct":1100,"multi":1249,"explanation":1195},[1208,1211,1214],1,{"title":115,"description":1240},"LRMrlmliWAZWJKGpdGSExL5HjGVmPZjDPC4zk9GS-mc",{"id":1256,"title":1257,"bo":1258,"body":1259,"description":1489,"eval":1241,"extension":1242,"labo":1241,"meta":1490,"navigation":1249,"path":1491,"quizzes":1492,"readingTime":1252,"seo":1493,"stem":1494,"tp":1241,"__hash__":1495},"coursMemo\u002F0.snt-2nde\u002Fsd-donnees-structurees\u002F5.cloud.memo.md","Le cloud — l'essentiel",[588],{"type":590,"value":1260,"toc":1481},[1261,1265,1274,1278,1331,1335,1357,1361,1410,1414,1452,1456],[593,1262,1264],{"id":1263},"en-une-phrase","En une phrase",[598,1266,623,1267,1269,1270,1273],{},[602,1268,626],{}," est l'accès à distance, via Internet, à du stockage ou du\ncalcul hébergé dans des ",[602,1271,1272],{},"datacenters bien physiques"," — pratique, mais\nénergivore et dépendant d'un prestataire.",[593,1275,1277],{"id":1276},"à-mémoriser","À mémoriser",[771,1279,1280,1286,1292,1299,1312,1319],{},[774,1281,1282,1285],{},[602,1283,1284],{},"Cloud"," = ressources (stockage, calcul, logiciels) accessibles à\ndistance par Internet.",[774,1287,1288,1291],{},[602,1289,1290],{},"Datacenter"," = bâtiment hébergeant des milliers de serveurs.",[774,1293,1294,1295,1298],{},"Les datacenters consomment ",[602,1296,1297],{},"1 à 2 %"," de l'électricité mondiale\n(≈ pays comme l'Espagne), ~2 % en France — chiffre en croissance.",[774,1300,1221,1301,1304,1305,1308,1309,818],{},[602,1302,1303],{},"entraînement d'un grand modèle IA"," = plusieurs ",[602,1306,1307],{},"GWh"," ≈ consommation\nannuelle d'",[602,1310,1311],{},"environ 1 000 foyers français",[774,1313,1314,1315,1318],{},"Une ",[602,1316,1317],{},"recherche en ligne"," ≈ 0,3 g CO₂ ; multipliée par milliards\u002Fjour,\nça pèse. Une question à une IA ≈ 10× plus.",[774,1320,1321,1322,1325,1326,1328,1329,818],{},"Trois fonctionnalités clés : ",[602,1323,1324],{},"synchronisation",", ",[602,1327,1010],{},",\n",[602,1330,1088],{},[593,1332,1334],{"id":1333},"repères-de-conversion-utiles","Repères de conversion utiles",[771,1336,1337,1343,1351],{},[774,1338,1339,1340,818],{},"1 foyer français ≈ ",[602,1341,1342],{},"4 700 kWh\u002Fan",[774,1344,1345,1347,1348,818],{},[602,1346,837],{}," = 1 000 000 kWh ≈ ",[602,1349,1350],{},"200 foyers\u002Fan",[774,1352,1353,1354,818],{},"1 charge de téléphone ≈ ",[602,1355,1356],{},"0,01 kWh",[593,1358,1360],{"id":1359},"services-courants","Services courants",[641,1362,1363,1371],{},[644,1364,1365],{},[647,1366,1367,1369],{},[650,1368,652],{},[650,1370,658],{},[660,1372,1373,1379,1385,1391,1397,1403],{},[647,1374,1375,1377],{},[665,1376,669],{},[665,1378,675],{},[647,1380,1381,1383],{},[665,1382,682],{},[665,1384,688],{},[647,1386,1387,1389],{},[665,1388,695],{},[665,1390,701],{},[647,1392,1393,1395],{},[665,1394,708],{},[665,1396,708],{},[647,1398,1399,1401],{},[665,1400,720],{},[665,1402,726],{},[647,1404,1405,1407],{},[665,1406,733],{},[665,1408,1409],{},"Logiciel libre, auto-hébergeable",[593,1411,1413],{"id":1412},"niveaux-de-partage-à-connaître","Niveaux de partage à connaître",[641,1415,1416,1426],{},[644,1417,1418],{},[647,1419,1420,1423],{},[650,1421,1422],{},"Lien partagé…",[650,1424,1425],{},"Risque",[660,1427,1428,1436,1444],{},[647,1429,1430,1433],{},[665,1431,1432],{},"À une personne précise",[665,1434,1435],{},"Faible",[647,1437,1438,1441],{},[665,1439,1440],{},"À toute personne ayant le lien",[665,1442,1443],{},"Le lien peut fuiter",[647,1445,1446,1449],{},[665,1447,1448],{},"Public",[665,1450,1451],{},"Indexable par les moteurs de recherche",[593,1453,1455],{"id":1454},"bonnes-pratiques","Bonnes pratiques",[771,1457,1458,1464,1471,1478],{},[774,1459,1460,1463],{},[602,1461,1462],{},"Toujours"," garder une copie locale en plus du cloud.",[774,1465,1466,1467,1470],{},"Vérifier les ",[602,1468,1469],{},"droits de partage"," avant d'envoyer un lien.",[774,1472,1473,1474,1477],{},"Choisir un service dont la ",[602,1475,1476],{},"juridiction"," correspond aux exigences\n(RGPD, données sensibles).",[774,1479,1480],{},"Trier régulièrement ses fichiers — la donnée la moins coûteuse à stocker\nest celle qui n'existe pas.",{"title":1106,"searchDepth":1226,"depth":1226,"links":1482},[1483,1484,1485,1486,1487,1488],{"id":1263,"depth":1226,"text":1264},{"id":1276,"depth":1226,"text":1277},{"id":1333,"depth":1226,"text":1334},{"id":1359,"depth":1226,"text":1360},{"id":1412,"depth":1226,"text":1413},{"id":1454,"depth":1226,"text":1455},"Mémo de révision sur le cloud, les datacenters et leur coût énergétique.",{},"\u002Fsnt-2nde\u002Fsd-donnees-structurees\u002Fcloud.memo",[],{"title":1257,"description":1489},"0.snt-2nde\u002Fsd-donnees-structurees\u002F5.cloud.memo","UQerLpJ2lVlTqwMqlTr2PcRO1qM4yuXQgGcN2itdU0Y",{"id":1497,"title":1498,"body":1499,"description":1844,"extension":1242,"meta":1845,"navigation":1249,"path":1846,"seo":1847,"stem":1848,"__hash__":1849},"coursSlides\u002F0.snt-2nde\u002Fsd-donnees-structurees\u002F5.cloud.slides.md","Le cloud — diapositives",{"type":590,"value":1500,"toc":1842},[1501,1505,1508,1513,1516,1520,1525,1545,1548,1550,1552,1595,1597,1601,1605,1614,1616,1620,1637,1640,1642,1646,1686,1692,1694,1698,1716,1718,1722,1732,1735,1737,1741,1777,1779,1781,1825,1827,1831],[1502,1503,115],"h1",{"id":1504},"le-cloud",[598,1506,1507],{},"Vos données ne sont pas « dans les nuages » — elles sont dans des disques.",[598,1509,1510,1511],{},"SNT Seconde — ",[615,1512],{"code":588},[1514,1515],"hr",{},[1502,1517,1519],{"id":1518},"définition","Définition",[598,1521,623,1522,1524],{},[602,1523,626],{}," = accès à distance, via Internet, à :",[771,1526,1527,1533,1539],{},[774,1528,1529,1530,914],{},"du ",[602,1531,1532],{},"stockage",[774,1534,1535,1536,914],{},"de la ",[602,1537,1538],{},"puissance de calcul",[774,1540,1541,1542,914],{},"des ",[602,1543,1544],{},"logiciels",[598,1546,1547],{},"hébergés sur des serveurs d'un prestataire.",[1514,1549],{},[1502,1551,1360],{"id":1359},[641,1553,1554,1562],{},[644,1555,1556],{},[647,1557,1558,1560],{},[650,1559,652],{},[650,1561,658],{},[660,1563,1564,1570,1576,1582,1588],{},[647,1565,1566,1568],{},[665,1567,669],{},[665,1569,675],{},[647,1571,1572,1574],{},[665,1573,682],{},[665,1575,688],{},[647,1577,1578,1580],{},[665,1579,695],{},[665,1581,701],{},[647,1583,1584,1586],{},[665,1585,720],{},[665,1587,726],{},[647,1589,1590,1592],{},[665,1591,733],{},[665,1593,1594],{},"Libre, auto-hébergeable",[1514,1596],{},[1502,1598,1600],{"id":1599},"le-nuage-est-très-matériel","Le nuage est très matériel",[762,1602],{"alt":1603,"kind":765,"prompt":1604},"Intérieur d'un datacenter","Vue intérieure d'un datacenter : allées de baies de serveurs noires, LED bleues, faux-plancher, éclairage froid",[598,1606,1607,1608,1325,1611,1613],{},"Un grand datacenter : ",[602,1609,1610],{},"plusieurs milliers de m²",[602,1612,788],{},"\nde consommation électrique.",[1514,1615],{},[1502,1617,1619],{"id":1618},"repères-de-conversion","Repères de conversion",[771,1621,1622,1626,1633],{},[774,1623,1339,1624,818],{},[602,1625,1342],{},[774,1627,1628,1630,1631,818],{},[602,1629,837],{}," ≈ ",[602,1632,1350],{},[774,1634,1353,1635,818],{},[602,1636,1356],{},[598,1638,1639],{},"À garder en tête pour les chiffres qui suivent.",[1514,1641],{},[1502,1643,1645],{"id":1644},"quelques-ordres-de-grandeur","Quelques ordres de grandeur",[771,1647,1648,1655,1661,1669,1679],{},[774,1649,1650,1652,1653,818],{},[602,1651,1297],{}," de l'électricité mondiale ≈ consommation d'un pays comme\n",[602,1654,865],{},[774,1656,1657,1660],{},[602,1658,1659],{},"~2 %"," de l'électricité française ≈ consommation domestique d'une\ngrande métropole (Lyon, Marseille).",[774,1662,1663,1664,1630,1666,818],{},"Entraîner un grand modèle IA = plusieurs ",[602,1665,1307],{},[602,1667,1668],{},"1 000 foyers\u002Fan",[774,1670,1671,1672,1675,1676,818],{},"Recherche Google ≈ ",[602,1673,1674],{},"0,3 g"," CO₂ × 8 milliards\u002Fjour = ",[602,1677,1678],{},"~2 400 t CO₂\u002Fjour",[774,1680,1681,1682,1685],{},"Question à une IA ≈ ",[602,1683,1684],{},"10×"," plus coûteuse qu'une recherche.",[598,1687,1688,1689,818],{},"Chiffres en ",[602,1690,1691],{},"forte croissance",[1514,1693],{},[1502,1695,1697],{"id":1696},"trois-fonctionnalités-à-connaître","Trois fonctionnalités à connaître",[771,1699,1700,1706,1711],{},[774,1701,1702,1705],{},[602,1703,1704],{},"Synchronisation"," : un dossier local est recopié sur le cloud.",[774,1707,1708,1710],{},[602,1709,1011],{}," : donner un accès par lien (lecture \u002F commentaire \u002F modification).",[774,1712,1713,1715],{},[602,1714,1089],{}," : retrouver une ancienne version d'un fichier.",[1514,1717],{},[1502,1719,1721],{"id":1720},"paramétrer-la-synchronisation","Paramétrer la synchronisation",[771,1723,1724,1727,1729],{},[774,1725,1726],{},"Quels dossiers synchroniser ?",[774,1728,1000],{},[774,1730,1731],{},"En Wi-Fi seulement, ou aussi en 4G\u002F5G ?",[598,1733,1734],{},"Le mauvais réglage = forfait mobile consommé en quelques minutes.",[1514,1736],{},[1502,1738,1740],{"id":1739},"niveaux-de-partage","Niveaux de partage",[641,1742,1743,1751],{},[644,1744,1745],{},[647,1746,1747,1749],{},[650,1748,1011],{},[650,1750,1425],{},[660,1752,1753,1760,1767],{},[647,1754,1755,1758],{},[665,1756,1757],{},"Personne précise",[665,1759,1435],{},[647,1761,1762,1765],{},[665,1763,1764],{},"« Toute personne avec le lien »",[665,1766,1443],{},[647,1768,1769,1771],{},[665,1770,1448],{},[665,1772,1773,1776],{},[602,1774,1775],{},"Indexable"," par les moteurs",[1514,1778],{},[1502,1780,1126],{"id":1125},[641,1782,1783,1791],{},[644,1784,1785],{},[647,1786,1787,1789],{},[650,1788,1135],{},[650,1790,1138],{},[660,1792,1793,1801,1809,1817],{},[647,1794,1795,1798],{},[665,1796,1797],{},"Accès partout",[665,1799,1800],{},"Dépend d'Internet",[647,1802,1803,1806],{},[665,1804,1805],{},"Sauvegarde auto",[665,1807,1808],{},"Dépend du prestataire",[647,1810,1811,1814],{},[665,1812,1813],{},"Partage facile",[665,1815,1816],{},"Coût énergétique",[647,1818,1819,1822],{},[665,1820,1821],{},"Pas de matériel",[665,1823,1824],{},"Risque de piratage",[1514,1826],{},[1502,1828,1830],{"id":1829},"à-retenir","À retenir",[598,1832,1833,1834,1837,1838,1841],{},"Le cloud n'est pas magique. Vos données vivent dans des bâtiments, sur des\ndisques, gérés par des entreprises. ",[602,1835,1836],{},"Garder une copie locale"," et\n",[602,1839,1840],{},"vérifier ses partages"," sont deux réflexes essentiels.",{"title":1106,"searchDepth":1226,"depth":1226,"links":1843},[],"Deck projetable pour la séance sur le cloud et les 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