{"id":858,"date":"2014-11-21T19:23:55","date_gmt":"2014-11-21T19:23:55","guid":{"rendered":"http:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/?p=858"},"modified":"2025-11-05T22:41:04","modified_gmt":"2025-11-05T22:41:04","slug":"texas-instruments-sr-50","status":"publish","type":"post","link":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/?p=858","title":{"rendered":"TEXAS-INSTRUMENTS SR-50"},"content":{"rendered":"<p><a href=\"http:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/wp-content\/uploads\/2014\/10\/TISR50-2.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-562 size-large\" src=\"http:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/wp-content\/uploads\/2014\/10\/TISR50-2-1024x595.jpg\" alt=\"TISR50-2\" width=\"620\" height=\"360\" srcset=\"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/wp-content\/uploads\/2014\/10\/TISR50-2-1024x595.jpg 1024w, https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/wp-content\/uploads\/2014\/10\/TISR50-2-300x174.jpg 300w, https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/wp-content\/uploads\/2014\/10\/TISR50-2.jpg 1600w\" sizes=\"auto, (max-width: 620px) 100vw, 620px\" \/><\/a><\/p>\n<p style=\"text-align: justify;\"><em>Hewlett-Packard<\/em> sort sa l\u00e9gendaire <em>HP-35<\/em> en 1972, suivie un an plus tard par la <em><a href=\"http:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/?p=854\">HP-45<\/a><\/em>. <em>Texas-Instruments<\/em> riposte en janvier 1974 avec la <em>SR-50<\/em>, machine dot\u00e9e de la trigonom\u00e9trie et des logarithmes.<\/p>\n<p style=\"text-align: justify;\"><em>Hewlett-Packard<\/em> a\u00a0une pr\u00e9dilection pour la logique de calcul postfixe. <em>Texas-Instruments<\/em> est pour sa part fid\u00e8le \u00e0 la touche <i>\u00c9GAL<\/i> et enrichit m\u00eame sa logique dite alg\u00e9brique d&rsquo;un dispositif de gestion des priorit\u00e9s des op\u00e9rateurs, qu&rsquo;il appellera <em>AOS<\/em>.<\/p>\n<p style=\"text-align: justify;\">L&rsquo;afficheur de la <em>SR-50<\/em> est un g\u00e9n\u00e9reux 10 + 2 digits \u00e0 <em>LED<\/em> (13 chiffres de pr\u00e9cision interne).<\/p>\n<p style=\"text-align: justify;\">Machine robuste, <em>la SR-50<\/em> est aussi dot\u00e9e d&rsquo;un clavier de bonne qualit\u00e9.<\/p>\n<p><a href=\"http:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/wp-content\/uploads\/2014\/10\/TISR50-1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-561 \" src=\"http:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/wp-content\/uploads\/2014\/10\/TISR50-1-627x1024.jpg\" alt=\"TISR50-1\" width=\"422\" height=\"689\" srcset=\"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/wp-content\/uploads\/2014\/10\/TISR50-1-627x1024.jpg 627w, https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/wp-content\/uploads\/2014\/10\/TISR50-1-183x300.jpg 183w, https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/wp-content\/uploads\/2014\/10\/TISR50-1.jpg 981w\" sizes=\"auto, (max-width: 422px) 100vw, 422px\" \/><\/a><a href=\"http:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/wp-content\/uploads\/2014\/10\/TISR50-3.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"alignnone wp-image-563 size-large\" src=\"http:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/wp-content\/uploads\/2014\/10\/TISR50-3-1024x598.jpg\" alt=\"TISR50-3\" width=\"620\" height=\"362\" srcset=\"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/wp-content\/uploads\/2014\/10\/TISR50-3-1024x598.jpg 1024w, https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/wp-content\/uploads\/2014\/10\/TISR50-3-300x175.jpg 300w, https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/wp-content\/uploads\/2014\/10\/TISR50-3.jpg 1572w\" sizes=\"auto, (max-width: 620px) 100vw, 620px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Hewlett-Packard sort sa l\u00e9gendaire HP-35 en 1972, suivie un an plus tard par la HP-45. Texas-Instruments riposte en janvier 1974 avec la SR-50, machine dot\u00e9e de la trigonom\u00e9trie et des logarithmes. Hewlett-Packard a\u00a0une pr\u00e9dilection pour la logique de calcul postfixe. Texas-Instruments est pour sa part fid\u00e8le \u00e0 la touche \u00c9GAL et enrichit m\u00eame sa logique dite alg\u00e9brique d&rsquo;un dispositif de<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[3,13],"tags":[],"class_list":["post-858","post","type-post","status-publish","format-standard","hentry","category-machines-antiques","category-texas-instruments"],"_links":{"self":[{"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=\/wp\/v2\/posts\/858","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=858"}],"version-history":[{"count":11,"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=\/wp\/v2\/posts\/858\/revisions"}],"predecessor-version":[{"id":8774,"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=\/wp\/v2\/posts\/858\/revisions\/8774"}],"wp:attachment":[{"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=858"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=858"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/le-rayon-des-calculatrices.fr\/WordPress3\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=858"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}