{"id":195809,"date":"2012-08-29T17:38:00","date_gmt":"2012-08-29T15:38:00","guid":{"rendered":"https:\/\/cms.galaxiemedia.fr\/tomshardware\/2012\/08\/29\/lordinateur-des-missions-apollo-en-detail\/"},"modified":"2023-06-23T05:54:33","modified_gmt":"2023-06-23T03:54:33","slug":"lordinateur-des-missions-apollo-en-detail","status":"publish","type":"post","link":"https:\/\/www.tomshardware.fr\/lordinateur-des-missions-apollo-en-detail\/","title":{"rendered":"L&#8217;ordinateur des missions Apollo en d\u00e9tail"},"content":{"rendered":"<p>Il y a quelques jours, le premier homme \u00e0 avoir pos\u00e9 le pied sur la lune est d\u00e9c\u00e9d\u00e9. Et si on en profitait pour parler de l&#8217;ordinateur qui a servi durant les missions <strong>Apollo<\/strong> entre 1969 et 1972 ?<\/p>\n<\/p>\n<p>L&#8217;<strong>ACG<\/strong> (Apollo Guidance Computer) \u00e9tait utilis\u00e9 en double dans la majorit\u00e9 des missions (sauf une) : un dans le module lunaire et un dans le module de commande. Chaque processeur \u00e9tait compos\u00e9 de 2 800 transistors \u2014 dans la version envoy\u00e9e sur la lune avec Apollo 11 \u2014 et \u00e9tait coupl\u00e9 \u00e0 de la m\u00e9moire. On trouvait 36 864 \u00ab mots \u00bb de m\u00e9moire ROM (non effa\u00e7able) et 2 048 \u00ab mots \u00bb de m\u00e9moire effa\u00e7able (\u00e9quivalente \u00e0 de la RAM). La m\u00e9moire en question est \u00e0 base de ferrite magn\u00e9tique, une technologie qui n&#8217;est plus utilis\u00e9e. Nous avons mis le mot \u00ab mots \u00bb entre guillemets pour une bonne raison : l&#8217;ordinateur travaillait en 16 bits pour les donn\u00e9es, avec 15 bits effectifs par mots, le dernier \u00e9tant utilis\u00e9 pour la parit\u00e9. <\/p>\n<\/p>\n<p><span style=\"clear:both\"><\/p>\n<div class=\"table-wrapper\"><table class=\"imgTab\" align=\"center\">\n<tr>\n<td class=\"imgContent\"><span class=\"iZoom\"><img alt=\"Image 1 : L&#039;ordinateur des missions Apollo en d\u00e9tail\" decoding=\"async\" width=\"200\" height=\"107\" src=\"https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2012\/08\/agc-view-200x107.jpg\" class=\"attachment-purch-200 size-purch-200\" alt=\"\" \/><\/span><\/td>\n<td class=\"imgContent\"><span class=\"iZoom\"><img alt=\"Image 2 : L&#039;ordinateur des missions Apollo en d\u00e9tail\" decoding=\"async\" width=\"200\" height=\"127\" src=\"https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2012\/08\/core-1-200x127.jpg\" class=\"attachment-purch-200 size-purch-200\" alt=\"\" \/><\/span><\/td>\n<\/tr>\n<\/table><\/div>\n<p><\/span><\/p>\n<\/p>\n<p>Dans nos unit\u00e9s, on parlerait donc de 552 960 bits, soit environ 69 ko ou 67 kio (et 3,84 ko pour la m\u00e9moire de travail).<\/p>\n<\/p>\n<p>Pour le processeur, un quartz \u00e0 2,048 MHz donnait la fr\u00e9quence de base, divis\u00e9e par 2 pour la fr\u00e9quence effective du processeur. La consommation en charge \u00e9tait d&#8217;environ 70 W et elle passait \u00e0 environ 10 W en veille. Le syst\u00e8me d&#8217;exploitation \u00e9tait \u00e9videmment cod\u00e9 en assembleur et les astronautes avaient acc\u00e8s \u00e0 un clavier et un \u00e9cran comme p\u00e9riph\u00e9riques d&#8217;entr\u00e9e\/sortie.<\/p>\n<\/p>\n<p>Terminons par la taille et le pois : 61 x 32 x 17 cm pour 32 kg&#8230;<\/p>\n<\/p>\n<p>Pour information, si les caract\u00e9ristiques semblent faibles, il faut prendre en compte l&#8217;\u00e9poque (les ann\u00e9es &#8217;60) et les contraintes de l&#8217;espace. Un appareil plus r\u00e9cent comme le rover Curiosity n&#8217;est pas non plus \u00e0 la pointe de la technologie de 2012, comme nous l&#8217;avons vu. <\/p>\n","protected":false},"excerpt":{"rendered":"<p>Il y a quelques jours, le premier homme \u00e0 avoir pos\u00e9 le pied sur la lune est d\u00e9c\u00e9d\u00e9. Et si on en profitait pour parler de l'ordinateur qui a servi durant les missions Apollo entre\u2026<\/p>","protected":false},"author":36,"featured_media":195810,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"ep_exclude_from_search":false,"footnotes":""},"categories":[487,4111],"tags":[],"hubs":[],"acf":{"post_show_excerpt":false,"post_source":{"title":"Tom's Hardware FR","url":"https:\/\/www.tomshardware.fr\/","target":""}},"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.5 (Yoast SEO v22.5) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>L&#039;ordinateur des missions Apollo en d\u00e9tail<\/title>\n<meta name=\"description\" content=\"Il y a quelques jours, le premier homme \u00e0 avoir pos\u00e9 le pied sur la lune est d\u00e9c\u00e9d\u00e9. 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Et si on en profitait pour parler de l&#039;ordinateur qui a servi durant les missions Apollo entre 1969 et 1972 ?\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.tomshardware.fr\/lordinateur-des-missions-apollo-en-detail\/\" \/>\n<meta property=\"og:site_name\" content=\"Tom\u2019s Hardware\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/TomsHardwareFrance\/\" \/>\n<meta property=\"article:published_time\" content=\"2012-08-29T15:38:00+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-06-23T03:54:33+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2012\/08\/agc-view.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"723\" \/>\n\t<meta property=\"og:image:height\" content=\"385\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"Pierre Dandumont\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:creator\" content=\"@tomshardware_fr\" \/>\n<meta name=\"twitter:site\" content=\"@tomshardware_fr\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/www.tomshardware.fr\/lordinateur-des-missions-apollo-en-detail\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/www.tomshardware.fr\/lordinateur-des-missions-apollo-en-detail\/\"},\"author\":{\"name\":\"Pierre Dandumont\",\"@id\":\"https:\/\/www.tomshardware.fr\/#\/schema\/person\/17966383cb6059d95d48bbdb852df076\"},\"headline\":\"L&#8217;ordinateur des missions Apollo en d\u00e9tail\",\"datePublished\":\"2012-08-29T15:38:00+00:00\",\"dateModified\":\"2023-06-23T03:54:33+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/www.tomshardware.fr\/lordinateur-des-missions-apollo-en-detail\/\"},\"wordCount\":319,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\/\/www.tomshardware.fr\/#organization\"},\"image\":{\"@id\":\"https:\/\/www.tomshardware.fr\/lordinateur-des-missions-apollo-en-detail\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2012\/08\/agc-view.jpg\",\"articleSection\":[\"Actualit\u00e9\",\"Internet &amp; Telecom\"],\"inLanguage\":\"fr-FR\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\/\/www.tomshardware.fr\/lordinateur-des-missions-apollo-en-detail\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.tomshardware.fr\/lordinateur-des-missions-apollo-en-detail\/\",\"url\":\"https:\/\/www.tomshardware.fr\/lordinateur-des-missions-apollo-en-detail\/\",\"name\":\"L'ordinateur des missions Apollo en d\u00e9tail\",\"isPartOf\":{\"@id\":\"https:\/\/www.tomshardware.fr\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.tomshardware.fr\/lordinateur-des-missions-apollo-en-detail\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.tomshardware.fr\/lordinateur-des-missions-apollo-en-detail\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.tomshardware.fr\/content\/uploads\/sites\/3\/2012\/08\/agc-view.jpg\",\"datePublished\":\"2012-08-29T15:38:00+00:00\",\"dateModified\":\"2023-06-23T03:54:33+00:00\",\"description\":\"Il y a quelques jours, le premier homme \u00e0 avoir pos\u00e9 le pied sur la lune est d\u00e9c\u00e9d\u00e9. 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