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class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="//donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_no.wikipedia.org&uselang=nb" class=""><span>Doner</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Spesial:Opprett_konto&returnto=BIOS" title="Du oppfordres til å opprette en konto og logge inn, men det er ikke obligatorisk" class=""><span>Opprett konto</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Spesial:Logg_inn&returnto=BIOS" title="Du oppfordres til å logge inn, men det er ikke obligatorisk [o]" 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mw-ui-icon-wikimedia-logIn"></span> <span>Logg inn</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Nettsted"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Innhold" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Innhold</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">flytt til sidefeltet</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">skjul</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">(Til toppen)</div> </a> </li> <li id="toc-Hvordan_BIOS_starter" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Hvordan_BIOS_starter"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Hvordan BIOS starter</span> </div> </a> <ul id="toc-Hvordan_BIOS_starter-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-BIOS_som_firmware" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#BIOS_som_firmware"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>BIOS som firmware</span> </div> </a> <ul id="toc-BIOS_som_firmware-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Historikk" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Historikk"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Historikk</span> </div> </a> <ul id="toc-Historikk-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Se_også" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Se_også"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Se også</span> </div> </a> <ul id="toc-Se_også-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Kilder" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Kilder"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Kilder</span> </div> </a> <ul id="toc-Kilder-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Innhold" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Vis/skjul innholdsfortegnelsen" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Vis/skjul innholdsfortegnelsen</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">BIOS</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Gå til en artikkel på et annet språk. Tilgjengelig på 67 språk" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-67" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">67 språk</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-nn mw-list-item"><a href="https://nn.wikipedia.org/wiki/BIOS" title="BIOS – norsk nynorsk" lang="nn" hreflang="nn" data-title="BIOS" data-language-autonym="Norsk nynorsk" data-language-local-name="norsk nynorsk" class="interlanguage-link-target"><span>Norsk nynorsk</span></a></li><li class="interlanguage-link interwiki-da mw-list-item"><a href="https://da.wikipedia.org/wiki/BIOS" title="BIOS – dansk" lang="da" hreflang="da" data-title="BIOS" data-language-autonym="Dansk" data-language-local-name="dansk" class="interlanguage-link-target"><span>Dansk</span></a></li><li class="interlanguage-link interwiki-sv mw-list-item"><a href="https://sv.wikipedia.org/wiki/Basic_Input/Output_System" title="Basic Input/Output System – svensk" lang="sv" hreflang="sv" data-title="Basic Input/Output System" data-language-autonym="Svenska" data-language-local-name="svensk" class="interlanguage-link-target"><span>Svenska</span></a></li><li class="interlanguage-link interwiki-is mw-list-item"><a href="https://is.wikipedia.org/wiki/Grunnst%C3%BDringarkerfi" title="Grunnstýringarkerfi – islandsk" lang="is" hreflang="is" data-title="Grunnstýringarkerfi" data-language-autonym="Íslenska" data-language-local-name="islandsk" class="interlanguage-link-target"><span>Íslenska</span></a></li><li class="interlanguage-link interwiki-af mw-list-item"><a href="https://af.wikipedia.org/wiki/BIOS" title="BIOS – afrikaans" lang="af" hreflang="af" data-title="BIOS" data-language-autonym="Afrikaans" data-language-local-name="afrikaans" class="interlanguage-link-target"><span>Afrikaans</span></a></li><li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%A7%D9%84%D9%86%D8%B8%D8%A7%D9%85_%D8%A7%D9%84%D8%A3%D8%B3%D8%A7%D8%B3%D9%8A_%D9%84%D9%84%D8%A5%D8%AF%D8%AE%D8%A7%D9%84_%D9%88%D8%A7%D9%84%D8%A5%D8%AE%D8%B1%D8%A7%D8%AC" title="النظام الأساسي للإدخال والإخراج – arabisk" lang="ar" hreflang="ar" data-title="النظام الأساسي للإدخال والإخراج" data-language-autonym="العربية" data-language-local-name="arabisk" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-az mw-list-item"><a href="https://az.wikipedia.org/wiki/BIOS" title="BIOS – aserbajdsjansk" lang="az" hreflang="az" data-title="BIOS" data-language-autonym="Azərbaycanca" data-language-local-name="aserbajdsjansk" class="interlanguage-link-target"><span>Azərbaycanca</span></a></li><li class="interlanguage-link interwiki-be mw-list-item"><a href="https://be.wikipedia.org/wiki/BIOS" title="BIOS – belarusisk" lang="be" hreflang="be" data-title="BIOS" data-language-autonym="Беларуская" data-language-local-name="belarusisk" class="interlanguage-link-target"><span>Беларуская</span></a></li><li class="interlanguage-link interwiki-be-x-old mw-list-item"><a href="https://be-tarask.wikipedia.org/wiki/BIOS" title="BIOS – belarusisk (klassisk ortografi)" lang="be-tarask" hreflang="be-tarask" data-title="BIOS" data-language-autonym="Беларуская (тарашкевіца)" data-language-local-name="belarusisk (klassisk ortografi)" class="interlanguage-link-target"><span>Беларуская (тарашкевіца)</span></a></li><li class="interlanguage-link interwiki-bg mw-list-item"><a href="https://bg.wikipedia.org/wiki/BIOS" title="BIOS – bulgarsk" lang="bg" hreflang="bg" data-title="BIOS" data-language-autonym="Български" data-language-local-name="bulgarsk" class="interlanguage-link-target"><span>Български</span></a></li><li class="interlanguage-link interwiki-bs mw-list-item"><a href="https://bs.wikipedia.org/wiki/BIOS" title="BIOS – bosnisk" lang="bs" hreflang="bs" data-title="BIOS" data-language-autonym="Bosanski" data-language-local-name="bosnisk" class="interlanguage-link-target"><span>Bosanski</span></a></li><li class="interlanguage-link interwiki-br mw-list-item"><a href="https://br.wikipedia.org/wiki/BIOS" title="BIOS – bretonsk" lang="br" hreflang="br" data-title="BIOS" data-language-autonym="Brezhoneg" data-language-local-name="bretonsk" class="interlanguage-link-target"><span>Brezhoneg</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/BIOS" title="BIOS – katalansk" lang="ca" hreflang="ca" data-title="BIOS" data-language-autonym="Català" data-language-local-name="katalansk" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/BIOS" title="BIOS – tsjekkisk" lang="cs" hreflang="cs" data-title="BIOS" data-language-autonym="Čeština" data-language-local-name="tsjekkisk" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-de mw-list-item"><a href="https://de.wikipedia.org/wiki/BIOS" title="BIOS – tysk" lang="de" hreflang="de" data-title="BIOS" data-language-autonym="Deutsch" data-language-local-name="tysk" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-et mw-list-item"><a href="https://et.wikipedia.org/wiki/Baasvahetuss%C3%BCsteem" title="Baasvahetussüsteem – estisk" lang="et" hreflang="et" data-title="Baasvahetussüsteem" data-language-autonym="Eesti" data-language-local-name="estisk" class="interlanguage-link-target"><span>Eesti</span></a></li><li class="interlanguage-link interwiki-el mw-list-item"><a href="https://el.wikipedia.org/wiki/BIOS" title="BIOS – gresk" lang="el" hreflang="el" data-title="BIOS" data-language-autonym="Ελληνικά" data-language-local-name="gresk" class="interlanguage-link-target"><span>Ελληνικά</span></a></li><li class="interlanguage-link interwiki-en mw-list-item"><a href="https://en.wikipedia.org/wiki/BIOS" title="BIOS – engelsk" lang="en" hreflang="en" data-title="BIOS" data-language-autonym="English" data-language-local-name="engelsk" class="interlanguage-link-target"><span>English</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/BIOS" title="BIOS – spansk" lang="es" hreflang="es" data-title="BIOS" data-language-autonym="Español" data-language-local-name="spansk" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-eo mw-list-item"><a href="https://eo.wikipedia.org/wiki/BIOS" title="BIOS – esperanto" lang="eo" hreflang="eo" data-title="BIOS" data-language-autonym="Esperanto" data-language-local-name="esperanto" class="interlanguage-link-target"><span>Esperanto</span></a></li><li class="interlanguage-link interwiki-eu mw-list-item"><a href="https://eu.wikipedia.org/wiki/BIOS" title="BIOS – baskisk" lang="eu" hreflang="eu" data-title="BIOS" data-language-autonym="Euskara" data-language-local-name="baskisk" class="interlanguage-link-target"><span>Euskara</span></a></li><li class="interlanguage-link interwiki-fa mw-list-item"><a href="https://fa.wikipedia.org/wiki/%D8%A8%D8%A7%DB%8C%D9%88%D8%B3" title="بایوس – persisk" lang="fa" hreflang="fa" data-title="بایوس" data-language-autonym="فارسی" data-language-local-name="persisk" class="interlanguage-link-target"><span>فارسی</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/BIOS_(informatique)" title="BIOS (informatique) – fransk" lang="fr" hreflang="fr" data-title="BIOS (informatique)" data-language-autonym="Français" data-language-local-name="fransk" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-gl mw-list-item"><a href="https://gl.wikipedia.org/wiki/BIOS" title="BIOS – galisisk" lang="gl" hreflang="gl" data-title="BIOS" data-language-autonym="Galego" data-language-local-name="galisisk" class="interlanguage-link-target"><span>Galego</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/%EB%B0%94%EC%9D%B4%EC%98%A4%EC%8A%A4" title="바이오스 – koreansk" lang="ko" hreflang="ko" data-title="바이오스" data-language-autonym="한국어" data-language-local-name="koreansk" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-ha mw-list-item"><a href="https://ha.wikipedia.org/wiki/BIOS" title="BIOS – hausa" lang="ha" hreflang="ha" data-title="BIOS" data-language-autonym="Hausa" data-language-local-name="hausa" class="interlanguage-link-target"><span>Hausa</span></a></li><li class="interlanguage-link interwiki-hi mw-list-item"><a href="https://hi.wikipedia.org/wiki/%E0%A4%AC%E0%A4%BE%E0%A4%AF%E0%A5%8B%E0%A4%B8" title="बायोस – hindi" lang="hi" hreflang="hi" data-title="बायोस" data-language-autonym="हिन्दी" data-language-local-name="hindi" class="interlanguage-link-target"><span>हिन्दी</span></a></li><li class="interlanguage-link interwiki-hr mw-list-item"><a href="https://hr.wikipedia.org/wiki/BIOS" title="BIOS – kroatisk" lang="hr" hreflang="hr" data-title="BIOS" data-language-autonym="Hrvatski" data-language-local-name="kroatisk" class="interlanguage-link-target"><span>Hrvatski</span></a></li><li class="interlanguage-link interwiki-id mw-list-item"><a href="https://id.wikipedia.org/wiki/BIOS" title="BIOS – indonesisk" lang="id" hreflang="id" data-title="BIOS" data-language-autonym="Bahasa Indonesia" data-language-local-name="indonesisk" class="interlanguage-link-target"><span>Bahasa Indonesia</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/BIOS" title="BIOS – italiensk" lang="it" hreflang="it" data-title="BIOS" data-language-autonym="Italiano" data-language-local-name="italiensk" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/BIOS" title="BIOS – hebraisk" lang="he" hreflang="he" data-title="BIOS" data-language-autonym="עברית" data-language-local-name="hebraisk" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-pam mw-list-item"><a href="https://pam.wikipedia.org/wiki/Basic_Input_Output_System" title="Basic Input Output System – pampanga" lang="pam" hreflang="pam" data-title="Basic Input Output System" data-language-autonym="Kapampangan" data-language-local-name="pampanga" class="interlanguage-link-target"><span>Kapampangan</span></a></li><li class="interlanguage-link interwiki-ka mw-list-item"><a href="https://ka.wikipedia.org/wiki/BIOS" title="BIOS – georgisk" lang="ka" hreflang="ka" data-title="BIOS" data-language-autonym="ქართული" data-language-local-name="georgisk" class="interlanguage-link-target"><span>ქართული</span></a></li><li class="interlanguage-link interwiki-kk mw-list-item"><a href="https://kk.wikipedia.org/wiki/%D0%91%D0%B0%D0%B7%D0%B0%D0%BB%D1%8B%D2%9B_%D0%B5%D0%BD%D0%B3%D1%96%D0%B7%D1%83-%D1%88%D1%8B%D2%93%D0%B0%D1%80%D1%83_%D0%B6%D2%AF%D0%B9%D0%B5%D1%81%D1%96" title="Базалық енгізу-шығару жүйесі – kasakhisk" lang="kk" hreflang="kk" data-title="Базалық енгізу-шығару жүйесі" data-language-autonym="Қазақша" data-language-local-name="kasakhisk" class="interlanguage-link-target"><span>Қазақша</span></a></li><li class="interlanguage-link interwiki-ku mw-list-item"><a href="https://ku.wikipedia.org/wiki/BIOS" title="BIOS – kurdisk" lang="ku" hreflang="ku" data-title="BIOS" data-language-autonym="Kurdî" data-language-local-name="kurdisk" class="interlanguage-link-target"><span>Kurdî</span></a></li><li class="interlanguage-link interwiki-lv mw-list-item"><a href="https://lv.wikipedia.org/wiki/BIOS" title="BIOS – latvisk" lang="lv" hreflang="lv" data-title="BIOS" data-language-autonym="Latviešu" data-language-local-name="latvisk" class="interlanguage-link-target"><span>Latviešu</span></a></li><li class="interlanguage-link interwiki-lb mw-list-item"><a href="https://lb.wikipedia.org/wiki/BIOS" title="BIOS – luxemburgsk" lang="lb" hreflang="lb" data-title="BIOS" data-language-autonym="Lëtzebuergesch" data-language-local-name="luxemburgsk" class="interlanguage-link-target"><span>Lëtzebuergesch</span></a></li><li class="interlanguage-link interwiki-lt mw-list-item"><a href="https://lt.wikipedia.org/wiki/BIOS" title="BIOS – litauisk" lang="lt" hreflang="lt" data-title="BIOS" data-language-autonym="Lietuvių" data-language-local-name="litauisk" class="interlanguage-link-target"><span>Lietuvių</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/BIOS" title="BIOS – lombardisk" lang="lmo" hreflang="lmo" data-title="BIOS" data-language-autonym="Lombard" data-language-local-name="lombardisk" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-hu mw-list-item"><a href="https://hu.wikipedia.org/wiki/BIOS" title="BIOS – ungarsk" lang="hu" hreflang="hu" data-title="BIOS" data-language-autonym="Magyar" data-language-local-name="ungarsk" class="interlanguage-link-target"><span>Magyar</span></a></li><li class="interlanguage-link interwiki-ml mw-list-item"><a href="https://ml.wikipedia.org/wiki/%E0%B4%AC%E0%B4%AF%E0%B5%8B%E0%B4%B8%E0%B5%8D" title="ബയോസ് – malayalam" lang="ml" hreflang="ml" data-title="ബയോസ്" data-language-autonym="മലയാളം" data-language-local-name="malayalam" class="interlanguage-link-target"><span>മലയാളം</span></a></li><li class="interlanguage-link interwiki-ms mw-list-item"><a href="https://ms.wikipedia.org/wiki/BIOS" title="BIOS – malayisk" lang="ms" hreflang="ms" data-title="BIOS" data-language-autonym="Bahasa Melayu" data-language-local-name="malayisk" class="interlanguage-link-target"><span>Bahasa Melayu</span></a></li><li class="interlanguage-link interwiki-nl mw-list-item"><a href="https://nl.wikipedia.org/wiki/Basic_input/output_system" title="Basic input/output system – nederlandsk" lang="nl" hreflang="nl" data-title="Basic input/output system" data-language-autonym="Nederlands" data-language-local-name="nederlandsk" class="interlanguage-link-target"><span>Nederlands</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/Basic_Input/Output_System" title="Basic Input/Output System – japansk" lang="ja" hreflang="ja" data-title="Basic Input/Output System" data-language-autonym="日本語" data-language-local-name="japansk" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-uz mw-list-item"><a href="https://uz.wikipedia.org/wiki/BIOS" title="BIOS – usbekisk" lang="uz" hreflang="uz" data-title="BIOS" data-language-autonym="Oʻzbekcha / ўзбекча" data-language-local-name="usbekisk" class="interlanguage-link-target"><span>Oʻzbekcha / ўзбекча</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/BIOS" title="BIOS – polsk" lang="pl" hreflang="pl" data-title="BIOS" data-language-autonym="Polski" data-language-local-name="polsk" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/BIOS" title="BIOS – portugisisk" lang="pt" hreflang="pt" data-title="BIOS" data-language-autonym="Português" data-language-local-name="portugisisk" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ro mw-list-item"><a href="https://ro.wikipedia.org/wiki/BIOS" title="BIOS – rumensk" lang="ro" hreflang="ro" data-title="BIOS" data-language-autonym="Română" data-language-local-name="rumensk" class="interlanguage-link-target"><span>Română</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/BIOS" title="BIOS – russisk" lang="ru" hreflang="ru" data-title="BIOS" data-language-autonym="Русский" data-language-local-name="russisk" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sq mw-list-item"><a href="https://sq.wikipedia.org/wiki/BIOS" title="BIOS – albansk" lang="sq" hreflang="sq" data-title="BIOS" data-language-autonym="Shqip" data-language-local-name="albansk" class="interlanguage-link-target"><span>Shqip</span></a></li><li class="interlanguage-link interwiki-simple mw-list-item"><a href="https://simple.wikipedia.org/wiki/BIOS" title="BIOS – enkel engelsk" lang="en-simple" hreflang="en-simple" data-title="BIOS" data-language-autonym="Simple English" data-language-local-name="enkel engelsk" class="interlanguage-link-target"><span>Simple English</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Basic_Input_Output_System" title="Basic Input Output System – slovakisk" lang="sk" hreflang="sk" data-title="Basic Input Output System" data-language-autonym="Slovenčina" data-language-local-name="slovakisk" class="interlanguage-link-target"><span>Slovenčina</span></a></li><li class="interlanguage-link interwiki-sl mw-list-item"><a href="https://sl.wikipedia.org/wiki/BIOS" title="BIOS – slovensk" lang="sl" hreflang="sl" data-title="BIOS" data-language-autonym="Slovenščina" data-language-local-name="slovensk" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-ckb mw-list-item"><a href="https://ckb.wikipedia.org/wiki/%D8%A8%D8%A7%DB%8C%DB%86%D8%B3" title="بایۆس – sentralkurdisk" lang="ckb" hreflang="ckb" data-title="بایۆس" data-language-autonym="کوردی" data-language-local-name="sentralkurdisk" class="interlanguage-link-target"><span>کوردی</span></a></li><li class="interlanguage-link interwiki-sr mw-list-item"><a href="https://sr.wikipedia.org/wiki/BIOS" title="BIOS – serbisk" lang="sr" hreflang="sr" data-title="BIOS" data-language-autonym="Српски / srpski" data-language-local-name="serbisk" class="interlanguage-link-target"><span>Српски / srpski</span></a></li><li class="interlanguage-link interwiki-sh mw-list-item"><a href="https://sh.wikipedia.org/wiki/BIOS" title="BIOS – serbokroatisk" lang="sh" hreflang="sh" data-title="BIOS" data-language-autonym="Srpskohrvatski / српскохрватски" data-language-local-name="serbokroatisk" class="interlanguage-link-target"><span>Srpskohrvatski / српскохрватски</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/BIOS" title="BIOS – finsk" lang="fi" hreflang="fi" data-title="BIOS" data-language-autonym="Suomi" data-language-local-name="finsk" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-tl mw-list-item"><a href="https://tl.wikipedia.org/wiki/BIOS" title="BIOS – tagalog" lang="tl" hreflang="tl" data-title="BIOS" data-language-autonym="Tagalog" data-language-local-name="tagalog" class="interlanguage-link-target"><span>Tagalog</span></a></li><li class="interlanguage-link interwiki-ta mw-list-item"><a href="https://ta.wikipedia.org/wiki/%E0%AE%AA%E0%AE%AF%E0%AE%BE%E0%AE%B8%E0%AF%8D" title="பயாஸ் – tamil" lang="ta" hreflang="ta" data-title="பயாஸ்" data-language-autonym="தமிழ்" data-language-local-name="tamil" class="interlanguage-link-target"><span>தமிழ்</span></a></li><li class="interlanguage-link interwiki-te mw-list-item"><a href="https://te.wikipedia.org/wiki/%E0%B0%AC%E0%B0%AF%E0%B1%8B%E0%B0%B8%E0%B1%8D" title="బయోస్ – telugu" lang="te" hreflang="te" data-title="బయోస్" data-language-autonym="తెలుగు" data-language-local-name="telugu" class="interlanguage-link-target"><span>తెలుగు</span></a></li><li class="interlanguage-link interwiki-th mw-list-item"><a href="https://th.wikipedia.org/wiki/%E0%B9%84%E0%B8%9A%E0%B8%AD%E0%B8%AD%E0%B8%AA" title="ไบออส – thai" lang="th" hreflang="th" data-title="ไบออส" data-language-autonym="ไทย" data-language-local-name="thai" class="interlanguage-link-target"><span>ไทย</span></a></li><li class="interlanguage-link interwiki-tg mw-list-item"><a href="https://tg.wikipedia.org/wiki/BIOS" title="BIOS – tadsjikisk" lang="tg" hreflang="tg" data-title="BIOS" data-language-autonym="Тоҷикӣ" data-language-local-name="tadsjikisk" class="interlanguage-link-target"><span>Тоҷикӣ</span></a></li><li class="interlanguage-link interwiki-tr mw-list-item"><a href="https://tr.wikipedia.org/wiki/BIOS" title="BIOS – tyrkisk" lang="tr" hreflang="tr" data-title="BIOS" data-language-autonym="Türkçe" data-language-local-name="tyrkisk" class="interlanguage-link-target"><span>Türkçe</span></a></li><li class="interlanguage-link interwiki-uk mw-list-item"><a href="https://uk.wikipedia.org/wiki/BIOS" title="BIOS – ukrainsk" lang="uk" hreflang="uk" data-title="BIOS" data-language-autonym="Українська" data-language-local-name="ukrainsk" class="interlanguage-link-target"><span>Українська</span></a></li><li class="interlanguage-link interwiki-vi mw-list-item"><a href="https://vi.wikipedia.org/wiki/BIOS" title="BIOS – vietnamesisk" lang="vi" hreflang="vi" data-title="BIOS" data-language-autonym="Tiếng Việt" data-language-local-name="vietnamesisk" class="interlanguage-link-target"><span>Tiếng Việt</span></a></li><li class="interlanguage-link interwiki-wuu mw-list-item"><a href="https://wuu.wikipedia.org/wiki/BIOS" title="BIOS – wu" lang="wuu" hreflang="wuu" data-title="BIOS" data-language-autonym="吴语" data-language-local-name="wu" class="interlanguage-link-target"><span>吴语</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/BIOS" title="BIOS – kinesisk" lang="zh" hreflang="zh" data-title="BIOS" data-language-autonym="中文" data-language-local-name="kinesisk" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q226264#sitelinks-wikipedia" title="Rediger lenker til artikkelen på andre språk" class="wbc-editpage">Rediger lenker</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Navnerom"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div 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href="/wiki/Fil:Elitegroup_761GX-M754_-_AMIBIOS_(American_Megatrends)_in_a_Winbond_W39V040APZ-5491.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/9a/Elitegroup_761GX-M754_-_AMIBIOS_%28American_Megatrends%29_in_a_Winbond_W39V040APZ-5491.jpg/250px-Elitegroup_761GX-M754_-_AMIBIOS_%28American_Megatrends%29_in_a_Winbond_W39V040APZ-5491.jpg" decoding="async" width="250" height="188" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/9a/Elitegroup_761GX-M754_-_AMIBIOS_%28American_Megatrends%29_in_a_Winbond_W39V040APZ-5491.jpg/375px-Elitegroup_761GX-M754_-_AMIBIOS_%28American_Megatrends%29_in_a_Winbond_W39V040APZ-5491.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/9a/Elitegroup_761GX-M754_-_AMIBIOS_%28American_Megatrends%29_in_a_Winbond_W39V040APZ-5491.jpg/500px-Elitegroup_761GX-M754_-_AMIBIOS_%28American_Megatrends%29_in_a_Winbond_W39V040APZ-5491.jpg 2x" data-file-width="3256" data-file-height="2442" /></a><figcaption>AMIBIOS.</figcaption></figure> <p><b>BIOS</b> (<b>B</b>asic <b>I</b>nput/<b>O</b>utput <b>S</b>ystem) er et program som er lagret på en brikke i en <a href="/wiki/Datamaskin" title="Datamaskin">datamaskins</a> hovedkort og kjøres når den blir slått på. BIOSens primære oppgave er å forberede <a href="/wiki/Maskinvare" title="Maskinvare">maskinvaren</a>, slik at annen programvare (fortrinnsvis <a href="/wiki/Operativsystem" title="Operativsystem">operativsystem</a>) lagret på ulike media (disketter, harddisk, CD-er) kan lastes, kjøres og ta kontroll over datamaskinen. Denne prosessen er kjent som «booting» eller «oppstart». Under oppstarten identifiserer og kontrollerer BIOS forskjellige enheter som til sammen utgjør en datamaskin. </p><p>Termen BIOS brukes kun i PC-er, mens det i andre typer datamaskiner ofte kalles <i>boot monitor</i>, <i>boot loader</i> eller <i>boot ROM</i>. </p><p>Navnet BIOS er et <a href="/wiki/Akronym" title="Akronym">akronym</a>, men det kan også være et ordspill på det <a href="/wiki/Hellas" title="Hellas">greske</a> ordet <i>βίος</i>, som betyr <i>liv</i>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Hvordan_BIOS_starter">Hvordan BIOS starter</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=BIOS&veaction=edit&section=1" title="Rediger avsnitt: Hvordan BIOS starter" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=BIOS&action=edit&section=1" title="Rediger kildekoden til seksjonen Hvordan BIOS starter"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Når man slår på en datamaskin, blir BIOS kjørt fra det innebygde <a href="/wiki/Flashminne" class="mw-redirect" title="Flashminne">flashminnet</a>. Lykkes hovedkortets såkalte POST-test (fra engelsk: <i>Power-on self-test</i>), som sjekker systemets integritet, dekomprimerer programmet seg og legges i maskinens hovedminne, slik at det kan kjøres derfra. Deretter sjekker BIOS at den nødvendige <a href="/wiki/Maskinvare" title="Maskinvare">maskinvare</a> er koblet til. (Dette kan for eksempel være <a href="/wiki/RAM" class="mw-redirect" title="RAM">RAM</a> og <a href="/wiki/Grafikkort" class="mw-redirect" title="Grafikkort">grafikkort</a>). </p> <div class="mw-heading mw-heading2"><h2 id="BIOS_som_firmware">BIOS som firmware</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=BIOS&veaction=edit&section=2" title="Rediger avsnitt: BIOS som firmware" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=BIOS&action=edit&section=2" title="Rediger kildekoden til seksjonen BIOS som firmware"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>BIOS blir noen ganger kalt <a href="/wiki/Firmware" class="mw-redirect" title="Firmware">firmware</a> eller fastvare, fordi den er en integrert del av en datamaskin. Før <a href="/wiki/1990" title="1990">1990</a> lå BIOS i <a href="/wiki/ROM" class="mw-redirect" title="ROM">ROM</a>-brikker, og kunne ikke endres. Etterhvert som BIOS ble stadig mer komplisert, og nødvendigheten for oppdateringer vokste, ble BIOS-programvaren lagret på såkalte <a href="/w/index.php?title=EEPROM&action=edit&redlink=1" class="new" title="EEPROM (ikke skrevet ennå)">EEPROM</a>, eller flash-minnebrikker. Fordelen med slike brikker er at de kan oppdateres av brukeren. Fordi en feil under BIOS-oppdatering, eller i selve oppdateringen, kan føre til permanent havari, har enkelte hovedkort også en ekstra BIOS, kalt «Dual BIOS», som benyttes om den primære BIOSen ikke kan leses eller benyttes. Maskinvarefabrikanter utgir stadig BIOS-oppgraderinger for å oppgradere sine produkter, øke kompatibilitet og/eller fjerne <a href="/wiki/Bug" class="mw-disambig" title="Bug">bugs</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Historikk">Historikk</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=BIOS&veaction=edit&section=3" title="Rediger avsnitt: Historikk" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=BIOS&action=edit&section=3" title="Rediger kildekoden til seksjonen Historikk"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Begrepet BIOS ble oppfunnet av Gary Kildall og dukket først opp i <a href="/wiki/CP/M" title="CP/M">CP/M</a>-operativsystemet i 1975. CP/M-maskinene hadde vanligvis bare en enkel bootloader i ROM. Senere versjoner av CP/M, samt Concurrent CP/M, Concurrent DOS, DOS Plus, flerbruker-DOS, System Manager og REAL/32 kom med en XIOS (Extended Input/Output System) i stedet for BIOS. De fleste versjoner av DOS brukte en fil ved navn "IO.SYS", "IBMBIO.COM", "IBMBIO.SYS" eller "DRBIOS.SYS", kalt DOS BIOS, som er en analogi til CP/M BIOS. </p><p>Noen Sun og PowerPC-baserte datamaskiner bruker <a href="/wiki/%C3%85pen_programvare" class="mw-redirect" title="Åpen programvare">åpen</a> firmware for dette formålet. </p> <div class="mw-heading mw-heading2"><h2 id="Se_også"><span id="Se_ogs.C3.A5"></span>Se også</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=BIOS&veaction=edit&section=4" title="Rediger avsnitt: Se også" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=BIOS&action=edit&section=4" title="Rediger kildekoden til seksjonen Se også"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Unified_Extensible_Firmware_Interface" title="Unified Extensible Firmware Interface">UEFI</a>, som har tatt over for BIOS i datamaskiner, spesielt etter 2005.</li></ul> <div class="mw-heading mw-heading2"><h2 id="Kilder">Kilder</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=BIOS&veaction=edit&section=5" title="Rediger avsnitt: Kilder" class="mw-editsection-visualeditor"><span>rediger</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=BIOS&action=edit&section=5" title="Rediger kildekoden til seksjonen Kilder"><span>rediger kilde</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="http://techterms.com/definition/bios">TechTerms.com: BIOS</a> <small>Besøkt 18. april 2015</small></li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r23230704">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist 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