{"id":90,"date":"2024-12-31T09:21:00","date_gmt":"2024-12-31T12:21:00","guid":{"rendered":"http:\/\/wagnersalvi.eti.br\/?p=90"},"modified":"2024-12-31T09:21:00","modified_gmt":"2024-12-31T12:21:00","slug":"primeiro-hd-hard-disk","status":"publish","type":"post","link":"http:\/\/www.wagnersalvi.com.br\/?p=90","title":{"rendered":"Primeiro HD (Hard Disk)"},"content":{"rendered":"\n

Em setembro de 1957, a IBM colocava no mercado o primeiro computador com disco r\u00edgido formado por 50 discos magn\u00e9ticos contendo 50 000 setores, sendo que cada um suportava 100 caracteres alfanum\u00e9ricos totalizando 5MB de mem\u00f3ria. Para a \u00e9poca isso foi considerado um feito, apesar das dimens\u00f5es da extraordin\u00e1ria m\u00e1quina: s\u00f3 o disco r\u00edgido pesava nada menos que uma tonelada.<\/p>\n\n\n\n

Ele era parte integrante do computador IBM 305 RAMAC e na verdade n\u00e3o eram 5MB e sim 4,7MB, pois trabalhava com caracteres de 7bits e n\u00e3o 8bits, como \u00e9 hoje. A IBM alugava essa estonteante capacidade de armazenamento para a \u00e9poca aos interessados por nada menos que 36 mil d\u00f3lares anuais, isso a valores de 1956.   Abaixo fotos deste HD. Imagine um destes na sua casa.<\/p>\n\n\n\n

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Views: 1<\/p>","protected":false},"excerpt":{"rendered":"

Em setembro de 1957, a IBM colocava no mercado o primeiro computador com disco r\u00edgido formado por 50 discos magn\u00e9ticos […]<\/p>\n","protected":false},"author":1,"featured_media":87,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[29],"tags":[38,39],"class_list":["post-90","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-historia","tag-hardware","tag-hd"],"_links":{"self":[{"href":"http:\/\/www.wagnersalvi.com.br\/index.php?rest_route=\/wp\/v2\/posts\/90","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.wagnersalvi.com.br\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.wagnersalvi.com.br\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.wagnersalvi.com.br\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.wagnersalvi.com.br\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=90"}],"version-history":[{"count":0,"href":"http:\/\/www.wagnersalvi.com.br\/index.php?rest_route=\/wp\/v2\/posts\/90\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"http:\/\/www.wagnersalvi.com.br\/index.php?rest_route=\/wp\/v2\/media\/87"}],"wp:attachment":[{"href":"http:\/\/www.wagnersalvi.com.br\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=90"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.wagnersalvi.com.br\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=90"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.wagnersalvi.com.br\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=90"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}