{"id":6678,"date":"2017-06-05T15:49:30","date_gmt":"2017-06-05T15:49:30","guid":{"rendered":"https:\/\/www.apen.es\/?page_id=6678"},"modified":"2025-07-14T10:52:32","modified_gmt":"2025-07-14T10:52:32","slug":"cpu","status":"publish","type":"page","link":"https:\/\/www.apen.es\/ca\/glosario-de-informatica\/cpu\/","title":{"rendered":"CPU"},"content":{"rendered":"

QU\u00c8 \u00c9S UNA CPU?<\/h2>\n\n\n
\n
\"\"<\/figure>\n<\/div>\n\n\n

\u00c9s la Central Processing Unit o Unitat de Proc\u00e9s Central, \u00e9s a dir, el cervell de qualsevol PC des de la qual es controlen i originen totes les comandes director, que generen les funcions a la CPU. El terme CPU es defineix com un dispositiu per a lexecuci\u00f3 de programari, els primers CPU van venir donats amb larribada de lordinador amb programa emmagatzemat.<\/p>\n\n\n\n

La CPU representa una part molt important del sistema, on es fan tots els c\u00e0lculs de codi binari de l'ordinador.<\/p>\n\n\n\n

La CPU est\u00e0 formada per tres elements: la mem\u00f2ria, la unitat aritm\u00e8tica l\u00f2gica i la unitat o processador de control.<\/p>\n\n\n\n

    \n
  • La mem\u00f2ria principal (interna o central); \u00e9s el lloc on s'emmagatzemen dades i programes. Aleshores s'ocupa d'emmagatzemar, llegir o escriure dades, generalment sobre les instruccions d'un programa o b\u00e9 aquelles amb qu\u00e8 s'operen aquestes instruccions. Est\u00e0 organitzada en centenars o milers dunitats demmagatzematge individual, i la seva unitat elemental de mem\u00f2ria es diu byte. Un byte est\u00e0 format per bits, un conjunt dunitats m\u00e9s petites, que s\u00f3n d\u00edgits binaris (0 o 1).<\/li>\n\n\n\n
  • La unitat de l\u00f2gica\/aritm\u00e8tica (ALU); que representa la calculadora principal de l'ordinador i vincula les operacions relacionades amb el codi binari que es maneja al PC. La unitat de control (CU) \u00e9s la gran administradora de la mem\u00f2ria i els components que afegeixen les funcions, les desxifra i les executa.<\/li>\n\n\n\n
  • Lexpressi\u00f3 o unitat central de proc\u00e9s; \u00c9s l'aut\u00e8ntic cervell, el que controla i coordina el funcionament del PC. Aquesta unitat genera el conjunt d'ordres necess\u00e0ries perqu\u00e8 es faci qualsevol tasca mitjan\u00e7ant la interpretaci\u00f3 de les instruccions que integren el programa d'aquesta unitat.<\/li>\n<\/ul>\n\n\n\n

    Fases del CPU<\/strong><\/p>\n\n\n\n

    Les CPU estan dissenyades a trav\u00e9s de microarquitectura, que se sol anomenar uarch en termes d'enginyeria inform\u00e0tica. Les instruccions de la CPU es desenvolupen mitjan\u00e7ant aquesta arquitectura i despr\u00e9s s\u00f3n implementades pels processadors.<\/p>\n\n\n\n

    Els microprocessadors s\u00f3n els encarregats de llegir la instrucci\u00f3, descodificar-la o interpretar-la, cercar dades per processar-la i despr\u00e9s processar la instrucci\u00f3. Els microprocessadors s'encarreguen de processar les dades i obeir instruccions, mitjan\u00e7ant el funcionament que li atorguem. Actualment s\u00f3n presents en molts altres artefactes electr\u00f2nics, com \u00e9s el cas de les joguines electr\u00f2niques, videojocs, tel\u00e8fons m\u00f2bils, autom\u00f2bils, tauletes o lectors de llibres digitals, entre d'altres.<\/p>\n\n\n\n

    El funcionament duna CPU es pot dividir en 4 fases;<\/p>\n\n\n\n

      \n
    • A la primera fase el processador carrega el codi des de la mem\u00f2ria, \u00e9s a dir, llegeix les dades.<\/li>\n\n\n\n
    • A la segona fase, la informaci\u00f3 llegida a la primera fase s'analitza seguint un joc d'instruccions, per saber qu\u00e8 fer amb la resta de la informaci\u00f3<\/li>\n\n\n\n
    • A la tercera fase es continua amb el processament franc i s'encarrega d'executar les instruccions preses descodificades, dins de la segona fase. \u00c9s on es fa la suma i se n'obt\u00e9 el resultat.<\/li>\n\n\n\n
    • La quarta i \u00faltima fase \u00e9s la d'escriptura, on es torna a carregar la informaci\u00f3, per\u00f2 aquesta vegada, des del processador fins a la mem\u00f2ria.<\/li>\n<\/ul>\n\n\n\n

      Les CPU representen una part elemental en el funcionament de qualsevol ordinador. \u00c9s l'encarregada del processament de totes les instruccions que us arriben del maquinari i del programari<\/p>","protected":false},"excerpt":{"rendered":"

      \u00bfQUE \u00c9S UNA CPU? Es la Central Processing Unit o Unidad de Proceso Central, es decir, el cerebro de cualquier PC desde la que se controlan y originan todos los comandos director, que generan las funciones en la CPU. El t\u00e9rmino CPU se define como un dispositivo para la ejecuci\u00f3n de software, los primeros CPU…<\/p>","protected":false},"author":4,"featured_media":0,"parent":6185,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"page-landing-glosario.php","meta":{"_acf_changed":false,"_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","footnotes":""},"class_list":["post-6678","page","type-page","status-publish","hentry"],"acf":[],"yoast_head":"\nCPU - Apen Inform\u00e1tica<\/title>\n<meta name=\"description\" content=\"\u00bfQue es la CPU? CPU Es la Unidad de Proceso Central, es decir, el cerebro de cualquier PC desde la que se controlan y originan todos los comandos director.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.apen.es\/ca\/glossari-dinformatica\/cpu\/\" \/>\n<meta property=\"og:locale\" content=\"ca_ES\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"CPU - Apen Inform\u00e1tica\" \/>\n<meta property=\"og:description\" content=\"\u00bfQue es la CPU? CPU Es la Unidad de Proceso Central, es decir, el cerebro de cualquier PC desde la que se controlan y originan todos los comandos director.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.apen.es\/ca\/glossari-dinformatica\/cpu\/\" \/>\n<meta property=\"og:site_name\" content=\"Apen Inform\u00e1tica\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/apensolucions\" \/>\n<meta property=\"article:modified_time\" content=\"2025-07-14T10:52:32+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.apen.es\/wp-content\/uploads\/2017\/06\/motherboard-885177_640.jpg\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Temps estimat de lectura\" \/>\n\t<meta name=\"twitter:data1\" content=\"3 minuts\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.apen.es\\\/glosario-de-informatica\\\/cpu\\\/\",\"url\":\"https:\\\/\\\/www.apen.es\\\/glosario-de-informatica\\\/cpu\\\/\",\"name\":\"CPU - Apen Inform\u00e1tica\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.apen.es\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/www.apen.es\\\/glosario-de-informatica\\\/cpu\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/www.apen.es\\\/glosario-de-informatica\\\/cpu\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/www.apen.es\\\/wp-content\\\/uploads\\\/2017\\\/06\\\/motherboard-885177_640.jpg\",\"datePublished\":\"2017-06-05T15:49:30+00:00\",\"dateModified\":\"2025-07-14T10:52:32+00:00\",\"description\":\"\u00bfQue es la CPU? CPU Es la Unidad de Proceso Central, es decir, el cerebro de cualquier PC desde la que se controlan y originan todos los comandos director.\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/www.apen.es\\\/glosario-de-informatica\\\/cpu\\\/#breadcrumb\"},\"inLanguage\":\"ca\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.apen.es\\\/glosario-de-informatica\\\/cpu\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"ca\",\"@id\":\"https:\\\/\\\/www.apen.es\\\/glosario-de-informatica\\\/cpu\\\/#primaryimage\",\"url\":\"https:\\\/\\\/www.apen.es\\\/wp-content\\\/uploads\\\/2017\\\/06\\\/motherboard-885177_640.jpg\",\"contentUrl\":\"https:\\\/\\\/www.apen.es\\\/wp-content\\\/uploads\\\/2017\\\/06\\\/motherboard-885177_640.jpg\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/www.apen.es\\\/glosario-de-informatica\\\/cpu\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Portada\",\"item\":\"https:\\\/\\\/www.apen.es\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"Glosario de inform\u00e1tica\",\"item\":\"https:\\\/\\\/www.apen.es\\\/glosario-de-informatica\\\/\"},{\"@type\":\"ListItem\",\"position\":3,\"name\":\"CPU\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.apen.es\\\/#website\",\"url\":\"https:\\\/\\\/www.apen.es\\\/\",\"name\":\"Apen Inform\u00e1tica\",\"description\":\"Mantenimiento Inform\u00e1tico , Software de Gesti\u00f3n, Soluciones de impresi\u00f3n\",\"publisher\":{\"@id\":\"https:\\\/\\\/www.apen.es\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.apen.es\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"ca\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/www.apen.es\\\/#organization\",\"name\":\"Apen: Soluciones inform\u00e1ticas\",\"url\":\"https:\\\/\\\/www.apen.es\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"ca\",\"@id\":\"https:\\\/\\\/www.apen.es\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/www.apen.es\\\/wp-content\\\/uploads\\\/2022\\\/08\\\/logo-apenok-231x82-1.png\",\"contentUrl\":\"https:\\\/\\\/www.apen.es\\\/wp-content\\\/uploads\\\/2022\\\/08\\\/logo-apenok-231x82-1.png\",\"width\":231,\"height\":82,\"caption\":\"Apen: Soluciones inform\u00e1ticas\"},\"image\":{\"@id\":\"https:\\\/\\\/www.apen.es\\\/#\\\/schema\\\/logo\\\/image\\\/\"},\"sameAs\":[\"https:\\\/\\\/www.facebook.com\\\/apensolucions\",\"https:\\\/\\\/www.youtube.com\\\/user\\\/ApenCentreInformatic\",\"https:\\\/\\\/www.linkedin.com\\\/company\\\/1021771?trk=tyah&trkInfo=clickedVerticalcompanyclickedEntityId1021771idx2-1-2tarId1464195271196tasapenin\"]}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"CPU - Apen Inform\u00e0tica","description":"Qu\u00e8 \u00e9s la CPU? CPU \u00c9s la Unitat de Proc\u00e9s Central, \u00e9s a dir, el cervell de qualsevol PC des de la qual es controlen i originen totes les ordres director.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/www.apen.es\/ca\/glossari-dinformatica\/cpu\/","og_locale":"ca_ES","og_type":"article","og_title":"CPU - Apen Inform\u00e1tica","og_description":"\u00bfQue es la CPU? CPU Es la Unidad de Proceso Central, es decir, el cerebro de cualquier PC desde la que se controlan y originan todos los comandos director.","og_url":"https:\/\/www.apen.es\/ca\/glossari-dinformatica\/cpu\/","og_site_name":"Apen Inform\u00e1tica","article_publisher":"https:\/\/www.facebook.com\/apensolucions","article_modified_time":"2025-07-14T10:52:32+00:00","og_image":[{"url":"https:\/\/www.apen.es\/wp-content\/uploads\/2017\/06\/motherboard-885177_640.jpg","type":"","width":"","height":""}],"twitter_card":"summary_large_image","twitter_misc":{"Temps estimat de lectura":"3 minuts"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/www.apen.es\/glosario-de-informatica\/cpu\/","url":"https:\/\/www.apen.es\/glosario-de-informatica\/cpu\/","name":"CPU - Apen Inform\u00e0tica","isPartOf":{"@id":"https:\/\/www.apen.es\/#website"},"primaryImageOfPage":{"@id":"https:\/\/www.apen.es\/glosario-de-informatica\/cpu\/#primaryimage"},"image":{"@id":"https:\/\/www.apen.es\/glosario-de-informatica\/cpu\/#primaryimage"},"thumbnailUrl":"https:\/\/www.apen.es\/wp-content\/uploads\/2017\/06\/motherboard-885177_640.jpg","datePublished":"2017-06-05T15:49:30+00:00","dateModified":"2025-07-14T10:52:32+00:00","description":"Qu\u00e8 \u00e9s la CPU? CPU \u00c9s la Unitat de Proc\u00e9s Central, \u00e9s a dir, el cervell de qualsevol PC des de la qual es controlen i originen totes les ordres director.","breadcrumb":{"@id":"https:\/\/www.apen.es\/glosario-de-informatica\/cpu\/#breadcrumb"},"inLanguage":"ca","potentialAction":[{"@type":"ReadAction","target":["https:\/\/www.apen.es\/glosario-de-informatica\/cpu\/"]}]},{"@type":"ImageObject","inLanguage":"ca","@id":"https:\/\/www.apen.es\/glosario-de-informatica\/cpu\/#primaryimage","url":"https:\/\/www.apen.es\/wp-content\/uploads\/2017\/06\/motherboard-885177_640.jpg","contentUrl":"https:\/\/www.apen.es\/wp-content\/uploads\/2017\/06\/motherboard-885177_640.jpg"},{"@type":"BreadcrumbList","@id":"https:\/\/www.apen.es\/glosario-de-informatica\/cpu\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Portada","item":"https:\/\/www.apen.es\/"},{"@type":"ListItem","position":2,"name":"Glosario de inform\u00e1tica","item":"https:\/\/www.apen.es\/glosario-de-informatica\/"},{"@type":"ListItem","position":3,"name":"CPU"}]},{"@type":"WebSite","@id":"https:\/\/www.apen.es\/#website","url":"https:\/\/www.apen.es\/","name":"Apen Inform\u00e0tica","description":"Manteniment inform\u00e0tic , programari de gesti\u00f3, solucions d'impressi\u00f3","publisher":{"@id":"https:\/\/www.apen.es\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/www.apen.es\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"ca"},{"@type":"Organization","@id":"https:\/\/www.apen.es\/#organization","name":"Apen: Solucions inform\u00e0tiques","url":"https:\/\/www.apen.es\/","logo":{"@type":"ImageObject","inLanguage":"ca","@id":"https:\/\/www.apen.es\/#\/schema\/logo\/image\/","url":"https:\/\/www.apen.es\/wp-content\/uploads\/2022\/08\/logo-apenok-231x82-1.png","contentUrl":"https:\/\/www.apen.es\/wp-content\/uploads\/2022\/08\/logo-apenok-231x82-1.png","width":231,"height":82,"caption":"Apen: Soluciones inform\u00e1ticas"},"image":{"@id":"https:\/\/www.apen.es\/#\/schema\/logo\/image\/"},"sameAs":["https:\/\/www.facebook.com\/apensolucions","https:\/\/www.youtube.com\/user\/ApenCentreInformatic","https:\/\/www.linkedin.com\/company\/1021771?trk=tyah&trkInfo=clickedVerticalcompanyclickedEntityId1021771idx2-1-2tarId1464195271196tasapenin"]}]}},"taxonomy_info":[],"featured_image_src_large":false,"author_info":{"display_name":"marqueting","author_link":"https:\/\/www.apen.es\/ca\/blog\/author\/marqueting\/"},"comment_info":0,"_links":{"self":[{"href":"https:\/\/www.apen.es\/ca\/wp-json\/wp\/v2\/pages\/6678","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.apen.es\/ca\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.apen.es\/ca\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.apen.es\/ca\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.apen.es\/ca\/wp-json\/wp\/v2\/comments?post=6678"}],"version-history":[{"count":2,"href":"https:\/\/www.apen.es\/ca\/wp-json\/wp\/v2\/pages\/6678\/revisions"}],"predecessor-version":[{"id":56549,"href":"https:\/\/www.apen.es\/ca\/wp-json\/wp\/v2\/pages\/6678\/revisions\/56549"}],"up":[{"embeddable":true,"href":"https:\/\/www.apen.es\/ca\/wp-json\/wp\/v2\/pages\/6185"}],"wp:attachment":[{"href":"https:\/\/www.apen.es\/ca\/wp-json\/wp\/v2\/media?parent=6678"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}