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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">Inizio</div> </a> </li> <li id="toc-Storia" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Storia"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Storia</span> </div> </a> <ul id="toc-Storia-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Caratteristiche" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Caratteristiche"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>Caratteristiche</span> </div> </a> <ul id="toc-Caratteristiche-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Tipologie" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Tipologie"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Tipologie</span> </div> </a> <button aria-controls="toc-Tipologie-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Attiva/disattiva la sottosezione Tipologie</span> </button> <ul id="toc-Tipologie-sublist" class="vector-toc-list"> <li id="toc-Floppy_disk_drive_da_5¼_pollici" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Floppy_disk_drive_da_5¼_pollici"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>Floppy disk drive da 5¼ pollici</span> </div> </a> <ul id="toc-Floppy_disk_drive_da_5¼_pollici-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Floppy_disk_drive_da_3½_pollici" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Floppy_disk_drive_da_3½_pollici"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.2</span> <span>Floppy disk drive da 3½ pollici</span> </div> </a> <ul id="toc-Floppy_disk_drive_da_3½_pollici-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Interfaccia" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Interfaccia"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>Interfaccia</span> </div> </a> <button aria-controls="toc-Interfaccia-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Attiva/disattiva la sottosezione Interfaccia</span> </button> <ul id="toc-Interfaccia-sublist" class="vector-toc-list"> <li id="toc-Piedinatura" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Piedinatura"> <div class="vector-toc-text"> <span class="vector-toc-numb">4.1</span> <span>Piedinatura</span> </div> </a> <ul id="toc-Piedinatura-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Note" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Note"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Note</span> </div> </a> <ul id="toc-Note-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Voci_correlate" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Voci_correlate"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>Voci correlate</span> </div> </a> <ul id="toc-Voci_correlate-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Altri_progetti" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Altri_progetti"> <div class="vector-toc-text"> <span class="vector-toc-numb">7</span> <span>Altri progetti</span> </div> </a> <ul id="toc-Altri_progetti-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="Indice" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" title="Indice" > <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="Mostra/Nascondi l'indice" > <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">Mostra/Nascondi l'indice</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">Floppy disk drive</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="Vai a una voce in un'altra lingua. Disponibile in 14 lingue" > <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-14" 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">14 lingue</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/Unitat_de_disquet" title="Unitat de disquet - catalano" lang="ca" hreflang="ca" data-title="Unitat de disquet" data-language-autonym="Català" data-language-local-name="catalano" 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/Disketov%C3%A1_mechanika" title="Disketová mechanika - ceco" lang="cs" hreflang="cs" data-title="Disketová mechanika" data-language-autonym="Čeština" data-language-local-name="ceco" 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/Diskettenlaufwerk" title="Diskettenlaufwerk - tedesco" lang="de" hreflang="de" data-title="Diskettenlaufwerk" data-language-autonym="Deutsch" data-language-local-name="tedesco" class="interlanguage-link-target"><span>Deutsch</span></a></li><li class="interlanguage-link interwiki-en badge-Q70893996 mw-list-item" title=""><a href="https://en.wikipedia.org/wiki/Floppy_disk_drive" title="Floppy disk drive - inglese" lang="en" hreflang="en" data-title="Floppy disk drive" data-language-autonym="English" data-language-local-name="inglese" 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/Disquetera" title="Disquetera - spagnolo" lang="es" hreflang="es" data-title="Disquetera" data-language-autonym="Español" data-language-local-name="spagnolo" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fi mw-list-item"><a href="https://fi.wikipedia.org/wiki/Levykeasema" title="Levykeasema - finlandese" lang="fi" hreflang="fi" data-title="Levykeasema" data-language-autonym="Suomi" data-language-local-name="finlandese" class="interlanguage-link-target"><span>Suomi</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/Lecteur_de_disquette" title="Lecteur de disquette - francese" lang="fr" hreflang="fr" data-title="Lecteur de disquette" data-language-autonym="Français" data-language-local-name="francese" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-he mw-list-item"><a href="https://he.wikipedia.org/wiki/%D7%9B%D7%95%D7%A0%D7%9F_%D7%AA%D7%A7%D7%9C%D7%99%D7%98%D7%95%D7%A0%D7%99%D7%9D" title="כונן תקליטונים - ebraico" lang="he" hreflang="he" data-title="כונן תקליטונים" data-language-autonym="עברית" data-language-local-name="ebraico" class="interlanguage-link-target"><span>עברית</span></a></li><li class="interlanguage-link interwiki-lmo mw-list-item"><a href="https://lmo.wikipedia.org/wiki/Dischettera" title="Dischettera - lombardo" lang="lmo" hreflang="lmo" data-title="Dischettera" data-language-autonym="Lombard" data-language-local-name="lombardo" class="interlanguage-link-target"><span>Lombard</span></a></li><li class="interlanguage-link interwiki-pl mw-list-item"><a href="https://pl.wikipedia.org/wiki/Stacja_dyskietek" title="Stacja dyskietek - polacco" lang="pl" hreflang="pl" data-title="Stacja dyskietek" data-language-autonym="Polski" data-language-local-name="polacco" class="interlanguage-link-target"><span>Polski</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/%D0%9D%D0%B0%D0%BA%D0%BE%D0%BF%D0%B8%D1%82%D0%B5%D0%BB%D1%8C_%D0%BD%D0%B0_%D0%B3%D0%B8%D0%B1%D0%BA%D0%B8%D1%85_%D0%BC%D0%B0%D0%B3%D0%BD%D0%B8%D1%82%D0%BD%D1%8B%D1%85_%D0%B4%D0%B8%D1%81%D0%BA%D0%B0%D1%85" title="Накопитель на гибких магнитных дисках - russo" lang="ru" hreflang="ru" data-title="Накопитель на гибких магнитных дисках" data-language-autonym="Русский" data-language-local-name="russo" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-sk mw-list-item"><a href="https://sk.wikipedia.org/wiki/Disketov%C3%A1_jednotka" title="Disketová jednotka - slovacco" lang="sk" hreflang="sk" data-title="Disketová jednotka" data-language-autonym="Slovenčina" data-language-local-name="slovacco" 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/Disketna_enota" title="Disketna enota - sloveno" lang="sl" hreflang="sl" data-title="Disketna enota" data-language-autonym="Slovenščina" data-language-local-name="sloveno" class="interlanguage-link-target"><span>Slovenščina</span></a></li><li class="interlanguage-link interwiki-zh-yue mw-list-item"><a href="https://zh-yue.wikipedia.org/wiki/%E7%A3%81%E7%A2%9F%E6%A9%9F" title="磁碟機 - cantonese" lang="yue" hreflang="yue" data-title="磁碟機" data-language-autonym="粵語" data-language-local-name="cantonese" class="interlanguage-link-target"><span>粵語</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/Q493576#sitelinks-wikipedia" title="Modifica collegamenti interlinguistici" class="wbc-editpage">Modifica collegamenti</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div 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</nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">Da Wikipedia, l'enciclopedia libera.</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="it" dir="ltr"><style data-mw-deduplicate="TemplateStyles:r133964453">.mw-parser-output .avviso .mbox-text-div>div,.mw-parser-output .avviso .mbox-text-full-div>div{font-size:90%}.mw-parser-output .avviso .mbox-image{flex-basis:52px;flex-grow:0;flex-shrink:0}.mw-parser-output .avviso .mbox-text-full-div .hide-when-compact{display:block}</style><div style="" class="ambox metadata plainlinks avviso avviso-contenuto"> <div class="avviso-immagine mbox-image noprint"><span typeof="mw:File"><a href="/wiki/File:Question_book-4.svg" 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voce</a> aggiungendo citazioni da <a href="/wiki/Wikipedia:Fonti_attendibili" title="Wikipedia:Fonti attendibili">fonti attendibili</a> secondo le <a href="/wiki/Wikipedia:Uso_delle_fonti" title="Wikipedia:Uso delle fonti">linee guida sull'uso delle fonti</a>. </div> </div> </div> </div> </div> <p>Un <b>floppy disk drive</b> (abbreviato <b>floppy drive</b> o <b>FDD</b>, traducibile in italiano come <b>unità a dischi floppy</b>) è un tipo di <a href="/wiki/Periferica" title="Periferica">periferica</a> che si contraddistingue per essere destinato esclusivamente alla lettura e/o scrittura dei <a href="/wiki/Floppy_disk" title="Floppy disk">floppy disk</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Storia">Storia</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Floppy_disk_drive&veaction=edit&section=1" title="Modifica la sezione Storia" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Floppy_disk_drive&action=edit&section=1" title="Edit section's source code: Storia"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>È stato presente sulla maggior parte degli <a href="/wiki/Home_computer" title="Home computer">home computer</a> e <a href="/wiki/Personal_computer" title="Personal computer">personal computer</a> a partire dagli anni '70 del XX secolo. A partire dai primi anni 2000 le unità floppy non sono più montate all'origine e occorre utilizzare, se necessario, il drive esterno con interfaccia <a href="/wiki/USB" title="USB">USB</a>. L'unico formato di floppy disk che viene utilizzato è quello da 3½ <a href="/wiki/Pollice_(unit%C3%A0_di_misura)" title="Pollice (unità di misura)">pollici</a> mentre negli <a href="/wiki/Anni_1980" title="Anni 1980">anni ottanta</a>, prima della disponibilità di tale formato, la maggior parte dei PC usava floppy da 5¼ pollici.<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> Ad oggi è stato sostituito da altre <a href="/wiki/Memorie_di_massa" class="mw-redirect" title="Memorie di massa">memorie di massa</a> quali i <a href="/wiki/CD-R" title="CD-R">CD-R</a>, i <a href="/wiki/DVD" title="DVD">DVD</a> e le <a href="/wiki/Chiave_USB" title="Chiave USB">chiavi USB</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Caratteristiche">Caratteristiche</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Floppy_disk_drive&veaction=edit&section=2" title="Modifica la sezione Caratteristiche" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Floppy_disk_drive&action=edit&section=2" title="Edit section's source code: Caratteristiche"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Normalmente il floppy disk drive è in grado sia di leggere che di scrivere i floppy disk, ma inizialmente sono stati prodotti anche floppy disk drive in grado solo di leggere i floppy disk. Un floppy disk drive in grado solo di leggere il disco è chiamato, più specificatamente, "lettore di floppy disk" ("lettore di floppy", "lettore floppy"), termine talvolta usato anche per i FDD con capacità di scrittura. </p> <div class="mw-heading mw-heading2"><h2 id="Tipologie">Tipologie</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Floppy_disk_drive&veaction=edit&section=3" title="Modifica la sezione Tipologie" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Floppy_disk_drive&action=edit&section=3" title="Edit section's source code: Tipologie"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In base al formato del floppy disk che il floppy disk drive è in grado di leggere e/o scrivere, si distinguono le seguenti tipologie di floppy disk drive: </p> <ul><li>floppy disk drive da 8 pollici;</li> <li>floppy disk drive da 5¼ pollici;</li> <li>floppy disk drive da 3½ pollici.</li></ul> <p>A parte le periferiche di tipo fisse descritte di seguito, sono in commercio anche unità floppy portatili con interfaccia USB (tipicamente da 3½ pollici). </p> <div class="mw-heading mw-heading3"><h3 id="Floppy_disk_drive_da_5¼_pollici"><span id="Floppy_disk_drive_da_5.C2.BC_pollici"></span>Floppy disk drive da 5¼ pollici</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Floppy_disk_drive&veaction=edit&section=4" title="Modifica la sezione Floppy disk drive da 5¼ pollici" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Floppy_disk_drive&action=edit&section=4" title="Edit section's source code: Floppy disk drive da 5¼ pollici"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:1.2_MB_floppy_disk_drive.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/07/1.2_MB_floppy_disk_drive.jpg/220px-1.2_MB_floppy_disk_drive.jpg" decoding="async" width="220" height="74" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/07/1.2_MB_floppy_disk_drive.jpg/330px-1.2_MB_floppy_disk_drive.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/07/1.2_MB_floppy_disk_drive.jpg/440px-1.2_MB_floppy_disk_drive.jpg 2x" data-file-width="2145" data-file-height="720" /></a><figcaption>Un drive per floppy disk da 5¼ pollici; 1,2 MB</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:1.2_MB_2.88_MB_floppy_disk_drive.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/1.2_MB_2.88_MB_floppy_disk_drive.jpg/220px-1.2_MB_2.88_MB_floppy_disk_drive.jpg" decoding="async" width="220" height="70" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/98/1.2_MB_2.88_MB_floppy_disk_drive.jpg/330px-1.2_MB_2.88_MB_floppy_disk_drive.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/98/1.2_MB_2.88_MB_floppy_disk_drive.jpg/440px-1.2_MB_2.88_MB_floppy_disk_drive.jpg 2x" data-file-width="2012" data-file-height="636" /></a><figcaption>Un drive per floppy disk da 5¼ pollici e 3½ pollici; 1,2 MB e 2,88 MB</figcaption></figure> <p>Il drive per i dischi da 5¼ pollici misura circa 148 x 43 x 210 <a href="/wiki/Millimetro" class="mw-redirect" title="Millimetro">mm</a>. </p><p>È sprovvisto di sistemi che controllano il corretto inserimento del disco nell'unità. La posizione corretta di inserimento è quella con l'etichetta sul lato superiore, e il lato che presenta la finestrella di lettura (quella ovale attraverso la quale si vede il supporto magnetico) deve essere il primo ad entrare nel lettore. </p><p>Normalmente il movimento di avvicinamento delle testine al supporto magnetico e il contemporaneo blocco in posizione del dischetto nell'unità avviene azionando (spesso ruotando) un meccanismo a leva. </p> <div class="mw-heading mw-heading3"><h3 id="Floppy_disk_drive_da_3½_pollici"><span id="Floppy_disk_drive_da_3.C2.BD_pollici"></span>Floppy disk drive da 3½ pollici</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Floppy_disk_drive&veaction=edit&section=5" title="Modifica la sezione Floppy disk drive da 3½ pollici" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Floppy_disk_drive&action=edit&section=5" title="Edit section's source code: Floppy disk drive da 3½ pollici"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:2.88_MB_floppy_disk_drive.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e0/2.88_MB_floppy_disk_drive.jpg/220px-2.88_MB_floppy_disk_drive.jpg" decoding="async" width="220" height="59" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e0/2.88_MB_floppy_disk_drive.jpg/330px-2.88_MB_floppy_disk_drive.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e0/2.88_MB_floppy_disk_drive.jpg/440px-2.88_MB_floppy_disk_drive.jpg 2x" data-file-width="2035" data-file-height="550" /></a><figcaption>Un drive per floppy disk da 3½ pollici; 2,88 MB</figcaption></figure> <p>Il drive per i dischi da 3½ pollici misura 4 (l) x 1 (h) x 6 (p) <a href="/wiki/Pollice_(unit%C3%A0_di_misura)" title="Pollice (unità di misura)">pollici</a>, pari a circa 102 x 25 x 150 <a href="/wiki/Millimetro" class="mw-redirect" title="Millimetro">mm</a>. </p><p>La forma dei dischi ed una serie di meccanismi interni impediscono l'inserimento del disco in posizioni diverse da quella corretta. Il movimento delle testine verso il disco viene comandato dall'inserimento del disco stesso per mezzo di un sistema meccanico. L'espulsione del disco avviene per mezzo dell'azionamento di un pulsante posto sul fronte dell'unità che fa scattare una <a href="/wiki/Molla" title="Molla">molla</a> che è caricata dall'operazione di inserimento del disco. </p><p>Un'eccezione è costituita dai drive installati dalla <a href="/wiki/Apple" title="Apple">Apple</a> a partire dal modello <a href="/wiki/Apple_Macintosh" class="mw-redirect" title="Apple Macintosh">Apple Macintosh</a> nei quali l'espulsione del disco è comandata dal sistema operativo (l'utente la deve comandare trascinando l'icona del lettore sul "<a href="/wiki/Cestino_(informatica)" title="Cestino (informatica)">cestino</a>") e ottenuta per mezzo di un motore che spinge fuori il disco. Nel caso questo meccanismo non funzionasse (ad esempio per un'interruzione dell'alimentazione o un malfunzionamento), si può inserire una punta rigida in un piccolo foro davanti al lettore, forzando l'espulsione del disco (analogamente ai lettori di CD/DVD). </p> <div class="mw-heading mw-heading2"><h2 id="Interfaccia">Interfaccia</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Floppy_disk_drive&veaction=edit&section=6" title="Modifica la sezione Interfaccia" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Floppy_disk_drive&action=edit&section=6" title="Edit section's source code: Interfaccia"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>L'interfaccia fra il drive per i floppy disk e la <a href="/wiki/Mainboard" class="mw-redirect" title="Mainboard">mainboard</a> del personal computer è uno dei pochi elementi che non sono stati variati negli anni dalla nascita del primo PC di <a href="/wiki/IBM" title="IBM">IBM</a> ad oggi. Il collegamento avviene oggi come allora con un <a href="/wiki/Cavo_elettrico" title="Cavo elettrico">cavo</a> a 34 poli. Sullo stesso cavo si possono collegare due drive. Sebbene fossero originariamente previsti dei <a href="/wiki/Jumper_(elettronica)" title="Jumper (elettronica)">jumper</a> di configurazione, in pratica la differenziazione fra i due drive è sempre stata ottenuta scambiando fra loro i fili dal 10 al 16 sul cavo. </p> <div class="mw-heading mw-heading3"><h3 id="Piedinatura">Piedinatura</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Floppy_disk_drive&veaction=edit&section=7" title="Modifica la sezione Piedinatura" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Floppy_disk_drive&action=edit&section=7" title="Edit section's source code: Piedinatura"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="wikitable"> <tbody><tr> <th>Pin </th> <th>Segnale </th></tr> <tr> <td>2 </td> <td>Tipo di floppy (HD/SD) </td></tr> <tr> <td>4 </td> <td>non connesso </td></tr> <tr> <td>6 </td> <td>non connesso </td></tr> <tr> <td>8 </td> <td>Indice </td></tr> <tr> <td>10 </td> <td>Attivazione motore drive 0 </td></tr> <tr> <td>12 </td> <td>Selezione drive 1 </td></tr> <tr> <td>14 </td> <td>Selezione drive 0 </td></tr> <tr> <td>16 </td> <td>Attivazione motore drive 1 </td></tr> <tr> <td>18 </td> <td>Direzione movimento testine </td></tr> <tr> <td>20 </td> <td>Step testina </td></tr> <tr> <td>22 </td> <td>Scrittura dati </td></tr> <tr> <td>24 </td> <td>Abilitazione scrittura floppy </td></tr> <tr> <td>26 </td> <td>Testina in traccia 0 </td></tr> <tr> <td>28 </td> <td>Protezione in scrittura </td></tr> <tr> <td>30 </td> <td>Lettura dati </td></tr> <tr> <td>32 </td> <td>Selezione testina </td></tr> <tr> <td>34 </td> <td>Cambio disco </td></tr> <tr> <td>dispari </td> <td>Massa </td></tr></tbody></table> <div class="mw-heading mw-heading2"><h2 id="Note">Note</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Floppy_disk_drive&veaction=edit&section=8" title="Modifica la sezione Note" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Floppy_disk_drive&action=edit&section=8" title="Edit section's source code: Note"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><a href="#cite_ref-1"><b>^</b></a> <span class="reference-text"><cite class="citation web" style="font-style:normal"> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20171210015701/https://www.tomshw.it/retroware-storia-microfloppy-3-5-pollici-89128"><span style="font-style:italic;">RetroWare - Storia del Microfloppy da 3,5 pollici</span></a>, su <span style="font-style:italic;">tomshw.it</span>, 23 ottobre 2017. <small>URL consultato il 9 dicembre 2017</small> <small>(archiviato dall'<abbr title="https://www.tomshw.it/retroware-storia-microfloppy-3-5-pollici-89128">url originale</abbr> il 10 dicembre 2017)</small>.</cite></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="Voci_correlate">Voci correlate</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Floppy_disk_drive&veaction=edit&section=9" title="Modifica la sezione Voci correlate" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Floppy_disk_drive&action=edit&section=9" title="Edit section's source code: Voci correlate"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Drive_(informatica)" class="mw-redirect" title="Drive (informatica)">Drive (informatica)</a></li> <li><a href="/wiki/Disco_rigido" title="Disco rigido">Disco rigido</a></li> <li><a href="/wiki/Unit%C3%A0_a_stato_solido" class="mw-redirect" title="Unità a stato solido">Unità a stato solido</a></li> <li><a href="/wiki/Floppy_disk" title="Floppy disk">Floppy disk</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="Altri_progetti">Altri progetti</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Floppy_disk_drive&veaction=edit&section=10" title="Modifica la sezione Altri progetti" class="mw-editsection-visualeditor"><span>modifica</span></a><span class="mw-editsection-divider"> | </span><a href="/w/index.php?title=Floppy_disk_drive&action=edit&section=10" title="Edit section's source code: Altri progetti"><span>modifica wikitesto</span></a><span class="mw-editsection-bracket">]</span></span></div> <div id="interProject" class="toccolours" style="display: none; 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