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class="mw-page-title-main">Digital Linear Tape</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="Go to an article in another language. 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height="40" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a4/Text_document_with_red_question_mark.svg/60px-Text_document_with_red_question_mark.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a4/Text_document_with_red_question_mark.svg/80px-Text_document_with_red_question_mark.svg.png 2x" data-file-width="48" data-file-height="48" /></span></span></div></td><td class="mbox-text"><div class="mbox-text-span">This article includes a <a href="/wiki/Wikipedia:Citing_sources" title="Wikipedia:Citing sources">list of references</a>, <a href="/wiki/Wikipedia:Further_reading" title="Wikipedia:Further reading">related reading</a>, or <a href="/wiki/Wikipedia:External_links" title="Wikipedia:External links">external links</a>, <b>but its sources remain unclear because it lacks <a href="/wiki/Wikipedia:Citing_sources#Inline_citations" title="Wikipedia:Citing sources">inline citations</a></b>.<span class="hide-when-compact"> Please help <a href="/wiki/Wikipedia:WikiProject_Fact_and_Reference_Check" class="mw-redirect" title="Wikipedia:WikiProject Fact and Reference Check">improve</a> this article by <a href="/wiki/Wikipedia:When_to_cite" title="Wikipedia:When to cite">introducing</a> more precise citations.</span> <span class="date-container"><i>(<span class="date">September 2024</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table><figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Super_DLTtape_I.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/2/23/Super_DLTtape_I.jpg/290px-Super_DLTtape_I.jpg" decoding="async" width="290" height="233" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/2/23/Super_DLTtape_I.jpg/435px-Super_DLTtape_I.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/2/23/Super_DLTtape_I.jpg/580px-Super_DLTtape_I.jpg 2x" data-file-width="800" data-file-height="644" /></a><figcaption>A Super DLT I tape cartridge</figcaption></figure> <p><b>Digital Linear Tape</b> (<b>DLT</b>; previously called <b>CompacTape</b>) is a <a href="/wiki/Magnetic-tape_data_storage" title="Magnetic-tape data storage">magnetic-tape data storage</a> technology developed by <a href="/wiki/Digital_Equipment_Corporation" title="Digital Equipment Corporation">Digital Equipment Corporation</a> (DEC) from 1984 onwards. In 1994, the technology was purchased by <a href="/wiki/Quantum_Corporation" title="Quantum Corporation">Quantum Corporation</a>, who manufactured drives and licensed the technology and trademark. A variant with higher capacity is called <b>Super DLT (SDLT)</b>. The lower cost "value line" was initially manufactured by <a href="/w/index.php?title=Benchmark_Storage_Innovations&action=edit&redlink=1" class="new" title="Benchmark Storage Innovations (page does not exist)">Benchmark Storage Innovations</a> under license from Quantum. Quantum acquired Benchmark in 2002. </p><p>In 2007, Quantum stopped developing DLT drives, shifting its strategy to <a href="/wiki/Linear_Tape-Open" title="Linear Tape-Open">LTO</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="History">History</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Digital_Linear_Tape&action=edit&section=1" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:DEC-TK50-drive_and_cassette.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/38/DEC-TK50-drive_and_cassette.jpg/290px-DEC-TK50-drive_and_cassette.jpg" decoding="async" width="290" height="209" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/38/DEC-TK50-drive_and_cassette.jpg/435px-DEC-TK50-drive_and_cassette.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/38/DEC-TK50-drive_and_cassette.jpg/580px-DEC-TK50-drive_and_cassette.jpg 2x" data-file-width="2765" data-file-height="1997" /></a><figcaption>DEC TK50 drive and cassette</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Digital-compactape-ii_hg.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Digital-compactape-ii_hg.jpg/180px-Digital-compactape-ii_hg.jpg" decoding="async" width="180" height="179" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Digital-compactape-ii_hg.jpg/270px-Digital-compactape-ii_hg.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/1c/Digital-compactape-ii_hg.jpg/360px-Digital-compactape-ii_hg.jpg 2x" data-file-width="3449" data-file-height="3432" /></a><figcaption>CompacTape II</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Digital-compacttape_hg.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0e/Digital-compacttape_hg.jpg/180px-Digital-compacttape_hg.jpg" decoding="async" width="180" height="182" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0e/Digital-compacttape_hg.jpg/270px-Digital-compacttape_hg.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/0e/Digital-compacttape_hg.jpg/360px-Digital-compacttape_hg.jpg 2x" data-file-width="3366" data-file-height="3398" /></a><figcaption>CompacTape III (DLT)</figcaption></figure> <p>DEC launched the TK50 tape drive for the <a href="/wiki/MicroVAX" title="MicroVAX">MicroVAX II</a> and <a href="/wiki/PDP-11" title="PDP-11">PDP-11</a> <a href="/wiki/Minicomputer" title="Minicomputer">minicomputers</a> in 1984. This used 22-track CompacTape I cartridges, storing 94 MB per cartridge. The TK50 was superseded in 1987 by the TK70 drive and the 48-track CompacTape II cartridge, capable of storing 294 MB. In 1989, the CompacTape III (later DLTtape III) format was introduced, increasing the number of tracks to 128 and capacity to 2.6 GB. Later drives into the early 1990s improved the data density of the DLTtape III cartridge, up to 10 GB. The DLTtape IV cartridge was introduced by Quantum in 1994, with increased tape length and data density, initially offering 20 GB per tape. Super DLTtape, originally capable of up to 110 GB, was launched in 2001. </p> <div class="mw-heading mw-heading2"><h2 id="Technology">Technology</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Digital_Linear_Tape&action=edit&section=2" title="Edit section: Technology"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>DLT uses <a href="/wiki/Magnetic_tape_data_storage#Linear" class="mw-redirect" title="Magnetic tape data storage">linear serpentine</a> recording with multiple tracks on half-inch (12.7 mm) wide tape. The <a href="/wiki/Data_cartridge_(tape)" class="mw-redirect" title="Data cartridge (tape)">cartridges</a> contain a single <a href="/wiki/Reel" title="Reel">reel</a> and the <a href="/wiki/Magnetic_tape" title="Magnetic tape">tape</a> is pulled out of the cartridge by means of a leader tape attached to the take-up reel inside the drive. The drive leader tape is buckled to the cartridge leader during the load process. Tape speed and tension are controlled electronically via the reel motors; there is no <a href="/wiki/Capstan_(tape_recorder)" class="mw-redirect" title="Capstan (tape recorder)">capstan</a>. The tape is guided by 4 to 6 rollers that touch only the back side of the tape. Tape material is <a href="/wiki/Metal_particle_tape" class="mw-redirect" title="Metal particle tape">metal particle tape</a> (MP/AMP). </p><p>SDLT adds an <a href="/wiki/Visual_Servoing" class="mw-redirect" title="Visual Servoing">optical servo</a> system that reads servo patterns on the back of the tape to keep the data tracks on the front of the tape correctly aligned with the read/write heads. This is important for newer tape media, which have very thin, dense data tracks; 256, 384 and 768 data tracks on a <style data-mw-deduplicate="TemplateStyles:r1154941027">.mw-parser-output .frac{white-space:nowrap}.mw-parser-output .frac .num,.mw-parser-output .frac .den{font-size:80%;line-height:0;vertical-align:super}.mw-parser-output .frac .den{vertical-align:sub}.mw-parser-output .sr-only{border:0;clip:rect(0,0,0,0);clip-path:polygon(0px 0px,0px 0px,0px 0px);height:1px;margin:-1px;overflow:hidden;padding:0;position:absolute;width:1px}</style><span class="frac"><span class="num">1</span>⁄<span class="den">2</span></span>-inch-wide (13 mm) tape are available. </p><p>DLT7000 and 8000 tilt the head forward and backward to reduce crosstalk between adjacent tracks through <a href="/wiki/Azimuth" title="Azimuth">azimuth</a>; this is called <a href="/wiki/Symmetric_Phase_Recording" title="Symmetric Phase Recording">Symmetric Phase Recording</a>. </p><p>All (S)DLT drives support hardware <a href="/wiki/Data_compression" title="Data compression">data compression</a>. The often-used compression factor of 2:1 is optimistic and generally only achievable for text data; a more realistic factor for a file system is 1.3:1 to 1.5:1, although drive compression applied to pre-compressed data can actually make the written data larger than having compression turned off in the tape drive. </p><p>Media are guaranteed for 30 years of <a href="/wiki/Data_retention" title="Data retention">data retention</a> under specified environmental conditions; they are easily damaged by mishandling (dropping or improper packaging during shipment.) </p><p>Manufacturers of cartridges for the DLT/SDLT market are <a href="/wiki/Fujifilm" title="Fujifilm">Fujifilm</a>, Hitachi/<a href="/wiki/Maxell" title="Maxell">Maxell</a> and <a href="/wiki/Imation" class="mw-redirect" title="Imation">Imation</a>. VStape is made by <a href="/wiki/Sony" title="Sony">Sony</a>. All other companies/brands (even Quantum) are contractors and/or resellers of these companies. </p><p>A new naming convention took effect in 2005, calling the performance line DLT-S and the value line DLT-V. </p><p>DLT includes <a href="/wiki/Write_Once_Read_Many" class="mw-redirect" title="Write Once Read Many">Write Once Read Many</a> (WORM) capability.<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> </p><p>In February 2007, Quantum stopped developing the next generations of DLT drives (S5 and V5) after insufficient market acceptance of the S4 and V4 drives, shifting its drive strategy to <a href="/wiki/Linear_Tape-Open" title="Linear Tape-Open">LTO</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Generations">Generations</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Digital_Linear_Tape&action=edit&section=3" title="Edit section: Generations"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <figure typeof="mw:File/Thumb"><a href="/wiki/File:Supertape_data_storage_capacities.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/9a/Supertape_data_storage_capacities.svg/500px-Supertape_data_storage_capacities.svg.png" decoding="async" width="500" height="375" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/9a/Supertape_data_storage_capacities.svg/750px-Supertape_data_storage_capacities.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/9a/Supertape_data_storage_capacities.svg/1000px-Supertape_data_storage_capacities.svg.png 2x" data-file-width="720" data-file-height="540" /></a><figcaption>Comparison of "supertape" capacities, including SDLT.</figcaption></figure> <div class="mw-heading mw-heading3"><h3 id="Drives">Drives</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Digital_Linear_Tape&action=edit&section=4" title="Edit section: Drives"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="wikitable sortable"> <tbody><tr> <th>Drive </th> <th>Capacity (GB) </th> <th>Interface </th> <th>Data Rate (MB/s) </th> <th>Date </th> <th>Media </th></tr> <tr> <td>TK50/TZ30 </td> <td>0.1 </td> <td>proprietary/SCSI </td> <td>0.045 </td> <td>1984 </td> <td>CT I </td></tr> <tr> <td>TK70 </td> <td>0.3 </td> <td>proprietary </td> <td>0.045 </td> <td>1987 </td> <td>CT II </td></tr> <tr> <td>THZ01/DLT260/Tx85 </td> <td>2.6 </td> <td><a href="/wiki/Digital_Storage_Systems_Interconnect" title="Digital Storage Systems Interconnect">DSSI</a>/<a href="/wiki/SCSI" title="SCSI">SCSI</a> </td> <td>0.8 </td> <td>1991 </td> <td>DLT III </td></tr> <tr> <td>THZ02/DLT600/Tx86 </td> <td>6 </td> <td><a href="/wiki/Digital_Storage_Systems_Interconnect" title="Digital Storage Systems Interconnect">DSSI</a>/<a href="/wiki/SCSI" title="SCSI">SCSI</a> </td> <td>0.8 </td> <td>1991 </td> <td>DLT III </td></tr> <tr> <td>DLT2000/Tx87 </td> <td>10 </td> <td>Fast <a href="/wiki/Parallel_SCSI#SCSI-2" title="Parallel SCSI">SCSI-2</a> </td> <td>1.25 </td> <td>1993 </td> <td>DLT III </td></tr> <tr> <td>DLT2000XT </td> <td>15 </td> <td>Fast <a href="/wiki/Parallel_SCSI#SCSI-2" title="Parallel SCSI">SCSI-2</a> </td> <td>1.25 </td> <td>1995 </td> <td>DLT IIIXT </td></tr> <tr> <td>DLT4000/Tx88 </td> <td>20 </td> <td>Fast <a href="/wiki/Parallel_SCSI#SCSI-2" title="Parallel SCSI">SCSI-2</a> </td> <td>1.5 </td> <td>1994 </td> <td>DLT IV </td></tr> <tr> <td>DLT7000/Tx89 </td> <td>35 </td> <td>Fast/Wide <a href="/wiki/Parallel_SCSI#SCSI-2" title="Parallel SCSI">SCSI-2</a> </td> <td>5 </td> <td>1996 </td> <td>DLT IV </td></tr> <tr> <td>DLT8000 </td> <td>40 </td> <td>Fast/Wide <a href="/wiki/Parallel_SCSI#SCSI-2" title="Parallel SCSI">SCSI-2</a> </td> <td>6 </td> <td>1999 </td> <td>DLT IV </td></tr> <tr> <td>SDLT 220 </td> <td>110 </td> <td><a href="/wiki/Parallel_SCSI#Ultra-2" title="Parallel SCSI">Ultra-2-Wide</a> SCSI </td> <td>11 </td> <td>1998 </td> <td>SDLT I </td></tr> <tr> <td>SDLT 320 </td> <td>160 </td> <td><a href="/wiki/Parallel_SCSI#Ultra-2" title="Parallel SCSI">Ultra-2-Wide</a> SCSI </td> <td>16 </td> <td>2002 </td> <td>SDLT I </td></tr> <tr> <td>SDLT 600 </td> <td>300 </td> <td><a href="/wiki/Parallel_SCSI#Ultra-3" title="Parallel SCSI">Ultra-160</a> SCSI/<a href="/wiki/Fibre_Channel" title="Fibre Channel">FC</a> 2Gb </td> <td>36 </td> <td>2004 </td> <td>SDLT II </td></tr> <tr> <td>SDLT 600A </td> <td>300 </td> <td><a href="/wiki/Gigabit_Ethernet" title="Gigabit Ethernet">GbE</a> (<a href="/wiki/File_Transfer_Protocol" title="File Transfer Protocol">FTP</a>, <a href="/wiki/HTTP" title="HTTP">HTTP</a>) </td> <td>36 </td> <td>2005 </td> <td>SDLT II </td></tr> <tr> <td>DLT-S4 </td> <td>800 </td> <td><a href="/wiki/Parallel_SCSI#Ultra-320" title="Parallel SCSI">Ultra-320</a> SCSI/<a href="/wiki/Fibre_Channel" title="Fibre Channel">FC</a> 4Gb/<a href="/wiki/Serial_Attached_SCSI" title="Serial Attached SCSI">SAS</a> </td> <td>60 </td> <td>2006 </td> <td>S4 </td></tr> <tr> <td>DLT-S4A </td> <td>800 </td> <td><a href="/wiki/Gigabit_Ethernet" title="Gigabit Ethernet">GbE</a> (<a href="/wiki/File_Transfer_Protocol" title="File Transfer Protocol">FTP</a>, <a href="/wiki/HTTP" title="HTTP">HTTP</a>) </td> <td>60 </td> <td>2007 </td> <td>S4 </td></tr> <tr> <td colspan="6">Value line </td></tr> <tr> <td>DLT1 </td> <td>40 </td> <td>Fast/Wide <a href="/wiki/Parallel_SCSI#SCSI-2" title="Parallel SCSI">SCSI-2</a> </td> <td>3 </td> <td>1999 </td> <td>DLT IV </td></tr> <tr> <td>DLT-VS80 </td> <td>40 </td> <td>Fast/Wide <a href="/wiki/Parallel_SCSI#SCSI-2" title="Parallel SCSI">SCSI-2</a> </td> <td>3 </td> <td>2001 </td> <td>DLT IV </td></tr> <tr> <td>DLT-VS160 </td> <td>80 </td> <td><a href="/wiki/Parallel_SCSI#Ultra-2" title="Parallel SCSI">Ultra-2-Wide</a> SCSI </td> <td>8 </td> <td>2003 </td> <td>VS1 </td></tr> <tr> <td>DLT-V4 </td> <td>160 </td> <td><a href="/wiki/Parallel_SCSI#Ultra-3" title="Parallel SCSI">Ultra-160</a> SCSI/<a href="/wiki/Serial_ATA" class="mw-redirect" title="Serial ATA">SATA</a>/<a href="/wiki/USB#USB_2.0" title="USB">USB</a><sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </td> <td>10 </td> <td>2005 </td> <td>VS1 </td></tr></tbody></table> <div class="mw-heading mw-heading3"><h3 id="Media">Media</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Digital_Linear_Tape&action=edit&section=5" title="Edit section: Media"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="wikitable"> <tbody><tr> <th>Name </th> <th>Formats (GB) </th> <th>Colour </th> <th>Supported by (ro=read only) </th></tr> <tr> <td>CompacTape I </td> <td>0.1 </td> <td>Light Grey </td> <td>TK50/TZ30, TK70 (ro) </td></tr> <tr> <td>CompacTape II </td> <td>0.3 </td> <td>Dark Grey </td> <td>TK70 </td></tr> <tr> <td>DLTtape III </td> <td>2.6, 6, 10 </td> <td>Light brown </td> <td>DLT260/600, DLT2000/2000XT/4000/7000 </td></tr> <tr> <td>DLTtape IIIXT </td> <td>15 </td> <td>White </td> <td>DLT2000XT/4000/7000/8000 </td></tr> <tr> <td>DLTtape IV </td> <td>20, 35, 40<style data-mw-deduplicate="TemplateStyles:r1041539562">.mw-parser-output .citation{word-wrap:break-word}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}</style><sup class="citation nobold" id="ref_DLT-IVa"><a href="#endnote_DLT-IVa">[a]</a></sup> </td> <td>Dark brown </td> <td>DLT4000/7000/8000, DLT1/DLT-VS80<link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1041539562"><sup class="citation nobold" id="ref_DLT-IVa"><a href="#endnote_DLT-IVa">[a]</a></sup>, SDLT220/320 (ro) </td></tr> <tr> <td>Cleaning Tape III </td> <td>20 cleans </td> <td>Beige </td> <td>DLT2000/2000XT/4000/7000/8000 </td></tr> <tr> <td>SDLTtape I </td> <td>110, 160 </td> <td>Dark green </td> <td>SDLT220/320, SDLT600 (ro), DLT-S4 (ro) </td></tr> <tr> <td>SDLTtape II </td> <td>300 </td> <td>Dark blue </td> <td>SDLT600, DLT-S4 (ro) </td></tr> <tr> <td>DLTtape S4 </td> <td>800 </td> <td>Dark purple </td> <td>DLT-S4 </td></tr> <tr> <td>SDLT Cleaning Tape </td> <td>20 cleans </td> <td>Light grey </td> <td>SDLT220/320/600, DLT-S4 </td></tr> <tr> <td>DLTtape VS1 </td> <td>80, 160 </td> <td>Ivory/Black </td> <td>VS160, DLT-V4, SDLT600 (ro) </td></tr> <tr> <td>DLT VS Cleaning Tape </td> <td>20 cleans </td> <td>Brown </td> <td>DLT1, DLT-VS80 </td></tr> <tr> <td>DLT VS160 Cleaning Tape </td> <td>20 cleans </td> <td>Light grey </td> <td>DLT-VS160, DLT-V4 </td></tr></tbody></table> <p><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1041539562"><span class="citation wikicite" id="endnote_DLT-IVa"><a href="#ref_DLT-IVa"><b><sup>a</sup></b></a></span> DLTtape IV can support both DLT4000/7000/8000 and DLT1/DLT-VS80 for full functions; once DLTtape IV media has been written to or formatted in a DLT7000/8000 drive, this media cannot be read, written to, or formatted in a DLT1/DLT-VS80 drive unless it is <a href="/wiki/Degaussing" title="Degaussing">degaussed</a>. Once the media has been written to or formatted in a DLT4000 drive, the media cannot be written to or formatted in a DLT1/DLT-VS80 drive unless it is degaussed but it can be read. This is because the DLT1/VS series use a different recording format that is not fully supported by the other family. </p><p>Tapes written in value series drives can typically be read in (and often written to) higher end drives of a similar vintage, so long as the drive's technical specifications contain interoperability options. </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Digital_Linear_Tape&action=edit&section=6" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Symmetric_Phase_Recording" title="Symmetric Phase Recording">Symmetric Phase Recording</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Digital_Linear_Tape&action=edit&section=7" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width" style="column-width: 32em;"> <ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation cs2"><a rel="nofollow" class="external text" href="http://www.quantum.com/Products/TapeDrives/DLT/DLTSageWORM/"><i>DLTSage WORM functionality is available at no additional charge</i></a>, Quantum</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=DLTSage+WORM+functionality+is+available+at+no+additional+charge&rft.pub=Quantum&rft_id=http%3A%2F%2Fwww.quantum.com%2FProducts%2FTapeDrives%2FDLT%2FDLTSageWORM%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ADigital+Linear+Tape" class="Z3988"></span>.</span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation cs2"><a rel="nofollow" class="external text" href="http://store.quantum.com/store/quantum/en_US/pd/productID.120423300/categoryID.18026400/parentCategoryID.18026300">"Product Info"</a>, <i>Online Store</i>, Quantum</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.atitle=Product+Info&rft.btitle=Online+Store&rft.pub=Quantum&rft_id=http%3A%2F%2Fstore.quantum.com%2Fstore%2Fquantum%2Fen_US%2Fpd%2FproductID.120423300%2FcategoryID.18026400%2FparentCategoryID.18026300&rfr_id=info%3Asid%2Fen.wikipedia.org%3ADigital+Linear+Tape" class="Z3988"></span>.</span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Digital_Linear_Tape&action=edit&section=8" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1235681985">.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid 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data-file-height="1376" /></span></span></div> <div class="side-box-text plainlist">Wikimedia Commons has media related to <span style="font-weight: bold; font-style: italic;"><a href="https://commons.wikimedia.org/wiki/Category:Digital_Linear_Tape" class="extiw" title="commons:Category:Digital Linear Tape">Digital Linear Tape</a></span>.</div></div> </div> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation cs2"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20140729065735/http://downloads.quantum.com/sdlt320/handbook.pdf"><i>DLTtape Handbook</i></a> <span class="cs1-format">(PDF)</span> (8th ed.), Quantum, 2001, archived from <a rel="nofollow" class="external text" href="http://downloads.quantum.com/sdlt320/handbook.pdf">the original</a> <span class="cs1-format">(<a href="/wiki/Portable_document_format" class="mw-redirect" title="Portable document format">PDF</a>)</span> on 2014-07-29<span class="reference-accessdate">, retrieved <span class="nowrap">2005-10-26</span></span></cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=DLTtape+Handbook&rft.edition=8th&rft.pub=Quantum&rft.date=2001&rft_id=http%3A%2F%2Fdownloads.quantum.com%2Fsdlt320%2Fhandbook.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3ADigital+Linear+Tape" class="Z3988"></span>.</li> <li><a rel="nofollow" class="external text" href="https://web.archive.org/web/20081015230507/http://www.dlttape.com/Roadmap/index.aspx">DLT Roadmap (archived from 2006)</a> at <a rel="nofollow" class="external text" href="https://web.archive.org/web/20060615002922/http://www.dlttape.com/">dlttape.com</a></li> <li><a rel="nofollow" class="external text" href="http://www.thefreelibrary.com/DR.+FRED+HERTRICH+--+FATHER+OF+DLT.-a055867702">Obituary</a> of Dr. Fred Hertrich, "father" of DLT</li></ul> <div class="mw-heading mw-heading3"><h3 id="Standards">Standards</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Digital_Linear_Tape&action=edit&section=9" title="Edit section: Standards"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external text" href="http://www.ecma-international.org/publications/standards/Ecma-197.htm">ECMA 197</a> Specification of DLT 2. <a rel="nofollow" class="external autonumber" href="http://www.ecma-international.org/publications/files/ecma-st/ECMA-197.pdf">[1]</a></li> <li><a rel="nofollow" class="external text" href="http://www.ecma-international.org/publications/standards/Ecma-209.htm">ECMA 209</a> Specification of DLT 3. <a rel="nofollow" class="external autonumber" href="http://www.ecma-international.org/publications/files/ecma-st/ECMA-209.pdf">[2]</a></li> <li><a rel="nofollow" class="external text" href="http://www.ecma-international.org/publications/standards/Ecma-231.htm">ECMA 231</a> Specification of DLT 4. <a rel="nofollow" class="external autonumber" href="http://www.ecma-international.org/publications/files/ecma-st/ECMA-231.pdf">[3]</a></li> <li><a rel="nofollow" class="external text" href="http://www.ecma-international.org/publications/standards/Ecma-258.htm">ECMA 258</a> Specification of DLT 3-XT. <a rel="nofollow" class="external autonumber" href="http://www.ecma-international.org/publications/files/ecma-st/ECMA-258.pdf">[4]</a></li> <li><a rel="nofollow" class="external text" href="http://www.ecma-international.org/publications/standards/Ecma-259.htm">ECMA 259</a> Specification of DLT 5. <a rel="nofollow" class="external autonumber" href="http://www.ecma-international.org/publications/files/ecma-st/ECMA-259.pdf">[5]</a></li> <li><a rel="nofollow" class="external text" href="http://www.ecma-international.org/publications/standards/Ecma-286.htm">ECMA 286</a> Specification of DLT 6. <a rel="nofollow" class="external autonumber" href="http://www.ecma-international.org/publications/files/ecma-st/ECMA-286.pdf">[6]</a></li> <li><a rel="nofollow" class="external text" href="http://www.ecma-international.org/publications/standards/Ecma-320.htm">ECMA 320</a> Specification of SDLT-1. <a rel="nofollow" class="external autonumber" href="https://web.archive.org/web/20061008152758/http://www.ecma-international.org/publications/files/ECMA-ST/Ecma-320.pdf">[7]</a></li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol 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.navbox{display:none!important}}</style></div><div role="navigation" class="navbox" aria-labelledby="Magnetic-tape_data_storage_formats" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Magnetic_tape_data_formats" title="Template:Magnetic tape data formats"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Magnetic_tape_data_formats" title="Template talk:Magnetic tape data formats"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Magnetic_tape_data_formats" title="Special:EditPage/Template:Magnetic tape data formats"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Magnetic-tape_data_storage_formats" style="font-size:114%;margin:0 4em"><a href="/wiki/Magnetic-tape_data_storage" title="Magnetic-tape data storage">Magnetic-tape data storage</a> formats</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Linear</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Wide (19–25.4 mm)</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IBM_7340" title="IBM 7340">IBM 7340</a> (1961)</li> <li><a href="/wiki/LINC#LINCTape" title="LINC">LINCtape</a> (1962)</li> <li><a href="/wiki/DECtape" title="DECtape">DECtape</a> (1963)</li> <li><a href="/wiki/Magnetic_tape_data_storage#IBM_formats" class="mw-redirect" title="Magnetic tape data storage">CDC 626</a> (1966)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Half inch (12.7 mm)</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/UNISERVO" class="mw-redirect" title="UNISERVO">UNISERVO</a> (1951)</li> <li><a href="/wiki/IBM_7-track" title="IBM 7-track">IBM 7-track</a> (1952)</li> <li><a href="/wiki/TX-2_Tape_System" title="TX-2 Tape System">TX-2 Tape System</a> (1958)</li> <li><a href="/wiki/9-track_tape" title="9-track tape">9-track</a> (1964)</li> <li><a href="/wiki/IBM_3480_Family" class="mw-redirect" title="IBM 3480 Family">IBM 3480</a> (1984)</li> <li><a class="mw-selflink selflink">DLT</a> (1984)</li> <li><a href="/wiki/IBM_3590" title="IBM 3590">IBM 3590</a> (1995)</li> <li><a href="/wiki/StorageTek_tape_formats" title="StorageTek tape formats">T9840</a> (1998)</li> <li><a href="/wiki/StorageTek_tape_formats" title="StorageTek tape formats">T9940</a> (2000)</li> <li><a href="/wiki/Linear_Tape-Open" title="Linear Tape-Open">LTO Ultrium</a> (2000)</li> <li><a href="/wiki/IBM_3592" title="IBM 3592">IBM 3592</a> (2003)</li> <li><a href="/wiki/StorageTek_tape_formats" title="StorageTek tape formats">T10000</a> (2006)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Eight millimeter (8 mm)</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Travan" title="Travan">Travan</a> (1995)</li> <li><a href="/wiki/IBM_Magstar_MP_3570" title="IBM Magstar MP 3570">IBM 3570 MP</a> (1997)</li> <li><a href="/wiki/Advanced_Digital_Recording" title="Advanced Digital Recording">ADR</a> (1999)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Quarter inch (6.35 mm)</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Quarter-inch_cartridge" title="Quarter-inch cartridge">QIC</a> (1972)</li> <li><a href="/wiki/Scalable_Linear_Recording" title="Scalable Linear Recording">SLR</a> (1986)</li> <li><a href="/wiki/Ditto_(drive)" title="Ditto (drive)">Ditto</a> (1992)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">"Eighth" (0.15) inch (3.81 mm)</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/D/CAS" title="D/CAS">D/CAS</a> (1971)</li> <li><a href="/wiki/Kansas_City_standard" title="Kansas City standard">KC standard, Compact Cassette</a> (1975)</li> <li><a href="/wiki/DC100" title="DC100">DC100</a> (1976)</li> <li><a href="/wiki/Tarbell_Cassette_Interface" title="Tarbell Cassette Interface">Tarbell Cassette Interface</a> (1976)</li> <li><a href="/wiki/Commodore_Datasette" title="Commodore Datasette">Commodore Datasette</a> (1977)</li> <li><a href="/wiki/DECtape#DECtape_II" title="DECtape">DECtape II</a> (1979)</li> <li><a href="/wiki/IBM_cassette_tape" title="IBM cassette tape">IBM PC Cassette</a> (1981)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Stringy (1.58–1.9 mm)</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Exatron_Stringy_Floppy" title="Exatron Stringy Floppy">Exatron Stringy Floppy</a> (1979)</li> <li><a href="/wiki/ZX_Microdrive" title="ZX Microdrive">ZX Microdrive</a> (1983)</li> <li><a href="/wiki/QL_Microdrive" class="mw-redirect" title="QL Microdrive">QL Microdrive</a> (1984)</li> <li><a href="/wiki/Rotronics_Wafadrive" title="Rotronics Wafadrive">Rotronics Wafadrive</a> (1984)</li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Helical</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Three quarter inch (19 mm)</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>Sony <a href="/wiki/Digital_Instrumentation_Recorder" title="Digital Instrumentation Recorder">DIR</a> (19xx)</li> <li>Ampex <a href="/wiki/Data_Storage_Technology" title="Data Storage Technology">DST</a> (1992)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Half inch (12.7 mm)</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ArVid" title="ArVid">ArVid</a> (1992)</li> <li><a href="/wiki/StorageTek_tape_formats" title="StorageTek tape formats">Redwood SD-3</a> (1995)</li> <li><a href="/wiki/Digital_Tape_Format" title="Digital Tape Format">DTF</a> (19xx)</li> <li><a href="/wiki/Advanced_Intelligent_Tape" title="Advanced Intelligent Tape">SAIT</a> (2003)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Eight millimeter (8 mm)</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Data8" title="Data8">Data8</a> (1987)</li> <li><a href="/wiki/Data8#Mammoth" title="Data8">Mammoth</a> (1994)</li> <li><a href="/wiki/Advanced_Intelligent_Tape" title="Advanced Intelligent Tape">AIT</a> (1996)</li> <li><a href="/wiki/VXA" title="VXA">VXA</a> (1999)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Four millimeter (3.81 mm)</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Digital_Data_Storage" title="Digital Data Storage">DDS/DAT</a> (1989)</li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Standards_of_Ecma_International" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="3"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Ecma_International_Standards" title="Template:Ecma International Standards"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Ecma_International_Standards" title="Template talk:Ecma International Standards"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Ecma_International_Standards" title="Special:EditPage/Template:Ecma International Standards"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Standards_of_Ecma_International" style="font-size:114%;margin:0 4em">Standards of <a href="/wiki/Ecma_International" title="Ecma International">Ecma International</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Application interfaces</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ANSI_escape_code" title="ANSI escape code">ANSI escape code</a></li> <li><a href="/wiki/Application_Programming_Interface_for_Windows" title="Application Programming Interface for Windows">APIW</a></li> <li><a href="/wiki/Common_Language_Infrastructure" title="Common Language Infrastructure">Common Language Infrastructure</a></li> <li><a href="/wiki/Office_Open_XML" title="Office Open XML">Office Open XML</a></li> <li><a href="/wiki/Open_XML_Paper_Specification" title="Open XML Paper Specification">OpenXPS</a></li></ul> </div></td><td class="noviewer navbox-image" rowspan="7" style="width:1px;padding:0 0 0 2px"><div><span typeof="mw:File"><a href="/wiki/File:Ecma_International_Logo.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/04/Ecma_International_Logo.svg/100px-Ecma_International_Logo.svg.png" decoding="async" width="100" height="27" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/04/Ecma_International_Logo.svg/150px-Ecma_International_Logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/04/Ecma_International_Logo.svg/200px-Ecma_International_Logo.svg.png 2x" data-file-width="201" data-file-height="54" /></a></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">File systems (tape)</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Advanced_Intelligent_Tape" title="Advanced Intelligent Tape">Advanced Intelligent Tape</a></li> <li><a href="/wiki/Digital_Data_Storage" title="Digital Data Storage">DDS</a></li> <li><a class="mw-selflink selflink">DLT</a></li> <li><a class="mw-selflink selflink">Super DLT</a></li> <li><a href="/wiki/Linear_Tape-Open" title="Linear Tape-Open">Linear Tape-Open</a> (Ultrium-1)</li> <li><a href="/wiki/VXA" title="VXA">VXA</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">File systems (disk)</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/CD-ROM" title="CD-ROM">CD-ROM</a></li> <li><a href="/wiki/ISO_9660" title="ISO 9660">CD File System</a> (CDFS)</li> <li><a href="/wiki/File_Allocation_Table" title="File Allocation Table">FAT</a> <ul><li><a href="/wiki/FAT12" class="mw-redirect" title="FAT12">FAT12</a></li> <li><a href="/wiki/FAT16" class="mw-redirect" title="FAT16">FAT16</a></li> <li><a href="/wiki/FAT16B" class="mw-redirect" title="FAT16B">FAT16B</a></li></ul></li> <li><a href="/wiki/Floppy_disk" title="Floppy disk">FD</a></li> <li><a href="/wiki/Universal_Disk_Format" title="Universal Disk Format">UDF</a></li> <li><a href="/wiki/Ultra_Density_Optical" title="Ultra Density Optical">Ultra Density Optical</a></li> <li><a href="/wiki/Universal_Media_Disc" title="Universal Media Disc">Universal Media Disc</a></li> <li><a href="/wiki/Holographic_Versatile_Disc" title="Holographic Versatile Disc">Holographic Versatile Disc</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Graphics</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Universal_3D" title="Universal 3D">Universal 3D</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Programming languages</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/C%2B%2B/CLI" title="C++/CLI">C++/CLI</a></li> <li><a href="/wiki/C_Sharp_(programming_language)" title="C Sharp (programming language)">C#</a></li> <li><a href="/wiki/Eiffel_(programming_language)" title="Eiffel (programming language)">Eiffel</a></li> <li><a href="/wiki/JavaScript" title="JavaScript">JavaScript</a> (<a href="/wiki/ECMAScript_for_XML" title="ECMAScript for XML">E4X</a>, <a href="/wiki/ECMAScript" title="ECMAScript">ECMAScript</a>)</li> <li><a href="/wiki/Dart_(programming_language)" title="Dart (programming language)">Dart</a></li> <li><a href="/wiki/Minimal_BASIC" title="Minimal BASIC">Minimal BASIC</a></li> <li><a href="/wiki/Full_BASIC" title="Full BASIC">Full BASIC</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Radio link interfaces</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Near-field_communication" title="Near-field communication">NFC</a></li> <li><a href="/wiki/Ultra-wideband" title="Ultra-wideband">UWB</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ISO/IEC_2022" title="ISO/IEC 2022">ECMA-35</a></li> <li><a href="/wiki/JSON" title="JSON">JSON</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="3"><div><a href="/wiki/List_of_Ecma_standards" title="List of Ecma standards">List of Ecma standards</a> (1961 – present)</div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="Digital_Equipment_Corporation" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="3"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Digital_Equipment_Corporation" title="Template:Digital Equipment Corporation"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Digital_Equipment_Corporation" title="Template talk:Digital Equipment Corporation"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Digital_Equipment_Corporation" title="Special:EditPage/Template:Digital Equipment Corporation"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Digital_Equipment_Corporation" style="font-size:114%;margin:0 4em"><a href="/wiki/Digital_Equipment_Corporation" title="Digital Equipment Corporation">Digital Equipment Corporation</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Key people</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Ken_Olsen" title="Ken Olsen">Ken Olsen</a> (founder and CEO, 1957–1992)</li> <li><a href="/wiki/Harlan_Anderson" title="Harlan Anderson">Harlan Anderson</a> (co-founder)</li> <li><a href="/wiki/Gordon_Bell" title="Gordon Bell">Gordon Bell</a> (VP of engineering)</li> <li><a href="/wiki/Robert_Palmer_(computer_businessman)" title="Robert Palmer (computer businessman)">Robert Palmer</a> (CEO, 1992–1998)</li></ul> </div></td><td class="noviewer navbox-image" rowspan="9" style="width:1px;padding:0 0 0 2px"><div><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/File:Digital_Equipment_Corporation_1993_logo.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/9/90/Digital_Equipment_Corporation_1993_logo.svg/110px-Digital_Equipment_Corporation_1993_logo.svg.png" decoding="async" width="110" height="33" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/90/Digital_Equipment_Corporation_1993_logo.svg/165px-Digital_Equipment_Corporation_1993_logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/90/Digital_Equipment_Corporation_1993_logo.svg/220px-Digital_Equipment_Corporation_1993_logo.svg.png 2x" data-file-width="3124" data-file-height="938" /></a></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Instruction_set_architecture" title="Instruction set architecture">Instruction set<br />architectures</a>,<br /><a href="/wiki/Processor_(computing)" title="Processor (computing)">processors</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/PDP-11_architecture" title="PDP-11 architecture">PDP-11</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>LSI-11</li> <li>F-11</li> <li><a href="/wiki/DEC_T-11" title="DEC T-11">T-11</a></li> <li><a href="/wiki/DEC_J-11" title="DEC J-11">J-11</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/VAX" title="VAX">VAX</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/DEC_V-11" title="DEC V-11">V-11</a></li> <li><a href="/wiki/MicroVAX_78032" title="MicroVAX 78032">MicroVAX 78032</a></li> <li><a href="/wiki/CVAX" title="CVAX">CVAX</a> <ul><li><a href="/wiki/CVAX#SOC" title="CVAX">SOC</a></li></ul></li> <li><a href="/wiki/Rigel_(microprocessor)" title="Rigel (microprocessor)">Rigel</a> <ul><li><a href="/wiki/Rigel_(microprocessor)#Mariah" title="Rigel (microprocessor)">Mariah</a></li></ul></li> <li><a href="/wiki/NVAX" title="NVAX">NVAX</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/DEC_Alpha" title="DEC Alpha">Alpha</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Alpha_21064" title="Alpha 21064">Alpha 21064</a> <ul><li><a href="/wiki/Alpha_21064#Alpha_21066" title="Alpha 21064">21066</a></li> <li><a href="/wiki/Alpha_21064#Alpha_21068" title="Alpha 21064">21068</a></li></ul></li> <li><a href="/wiki/Alpha_21164" title="Alpha 21164">Alpha 21164</a> (<a href="/wiki/Alpha_21164#Alpha_21164PC_(PCA56)" title="Alpha 21164">21164PC</a>)</li> <li><a href="/wiki/Alpha_21264" title="Alpha 21264">Alpha 21264</a></li> <li><a href="/wiki/Alpha_21364" title="Alpha 21364">Alpha 21364</a></li> <li><a href="/wiki/Alpha_21464" title="Alpha 21464">Alpha 21464</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/DEC_PRISM" title="DEC PRISM">MicroPRISM</a></li> <li><a href="/wiki/StrongARM" title="StrongARM">StrongARM</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Computer_terminal" title="Computer terminal">Computer<br />terminals</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/VT05" title="VT05">VT05</a> (1970)</li> <li><a href="/wiki/DEC_GT40" title="DEC GT40">GT40</a> (1972)</li> <li><a href="/wiki/VT52" title="VT52">VT50/VT52</a> (1975)</li> <li><a href="/wiki/VT55" class="mw-redirect" title="VT55">VT55</a></li> <li><a href="/wiki/VT62" class="mw-redirect" title="VT62">VT62</a></li> <li><a href="/wiki/VT100" title="VT100">VT100</a> (1978)</li> <li><a href="/wiki/VT101" class="mw-redirect" title="VT101">VT101</a></li> <li><a href="/wiki/VT102" class="mw-redirect" title="VT102">VT102</a></li> <li><a href="/wiki/VT103" class="mw-redirect" title="VT103">VT103</a></li> <li><a href="/wiki/VT105" class="mw-redirect" title="VT105">VT105</a></li> <li><a href="/wiki/VT131" class="mw-redirect" title="VT131">VT131</a></li> <li><a href="/wiki/VT180" title="VT180">VT180</a></li> <li><a href="/wiki/VT220" title="VT220">VT220</a> (1983)</li> <li><a href="/wiki/VT240" class="mw-redirect" title="VT240">VT240</a></li> <li><a href="/wiki/VT241" class="mw-redirect" title="VT241">VT241</a></li> <li><a href="/wiki/VT320" title="VT320">VT320</a> (1987)</li> <li><a href="/wiki/VT330" class="mw-redirect" title="VT330">VT330</a></li> <li><a href="/wiki/VT340" class="mw-redirect" title="VT340">VT340</a></li> <li><a href="/wiki/VT420" title="VT420">VT420</a> (1990)</li> <li><a href="/wiki/VT1000" title="VT1000">VT1000</a> (1990)</li> <li><a href="/wiki/VT510" class="mw-redirect" title="VT510">VT510</a> (1993)</li> <li><a href="/wiki/VT520" title="VT520">VT520</a> (1994)</li> <li><a href="/wiki/VT525" class="mw-redirect" title="VT525">VT525</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Operating_system" title="Operating system">Operating<br />systems</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/PDP-7#Software" title="PDP-7">DECsys</a></li> <li><a href="/wiki/4K_Disk_Monitor_System" class="mw-redirect" title="4K Disk Monitor System">4K DMS</a></li> <li><a href="/wiki/Commercial_Operating_System" title="Commercial Operating System">COS</a></li> <li><a href="/wiki/TOPS-10" title="TOPS-10">TOPS-10</a></li> <li><a href="/wiki/RSX-15" class="mw-redirect" title="RSX-15">RSX-15</a></li> <li><a href="/wiki/TSS/8" title="TSS/8">TSS/8</a></li> <li><a href="/wiki/OS/8" title="OS/8">OS/8</a></li> <li><a href="/wiki/DEC_BATCH-11/DOS-11" title="DEC BATCH-11/DOS-11">DOS-11</a></li> <li><a href="/wiki/RT-11" title="RT-11">RT-11</a></li> <li><a href="/wiki/RSTS/E" title="RSTS/E">RSTS/E</a></li> <li><a href="/wiki/RSX-11" title="RSX-11">RSX-11</a> <ul><li><a href="/wiki/Interactive_Application_System" title="Interactive Application System">IAS</a></li></ul></li> <li><a href="/wiki/MUMPS#1970s" title="MUMPS">DSM-11</a></li> <li><a href="/wiki/TOPS-20" title="TOPS-20">TOPS-20</a></li> <li><a href="/wiki/OpenVMS" title="OpenVMS">VAX/VMS</a></li> <li><a href="/wiki/VAXELN" title="VAXELN">VAXELN</a></li> <li><a href="/wiki/Ultrix" title="Ultrix">Ultrix</a></li> <li><a href="/wiki/DEC_MICA" title="DEC MICA">MICA</a></li> <li><a href="/wiki/Digital_UNIX" class="mw-redirect" title="Digital UNIX">Digital UNIX</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Programming_language" title="Programming language">Programming<br />languages</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/BASIC-8" title="BASIC-8">BASIC-8</a></li> <li><a href="/wiki/DIBOL" title="DIBOL">DIBOL</a></li> <li><a href="/wiki/FOCAL_(programming_language)" title="FOCAL (programming language)">FOCAL</a></li> <li><a href="/wiki/MACRO-10" title="MACRO-10">MACRO-10</a></li> <li><a href="/wiki/MACRO-11" title="MACRO-11">MACRO-11</a></li> <li><a href="/wiki/MUMPS" title="MUMPS">MUMPS</a></li> <li><a href="/wiki/VAX_MACRO" title="VAX MACRO">VAX MACRO</a></li> <li><a href="/wiki/DIGITAL_Command_Language" title="DIGITAL Command Language">DIGITAL Command Language</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Character_encoding" title="Character encoding">Character sets</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Multinational_Character_Set" title="Multinational Character Set">Code page 1100</a> (Multinational)</li> <li><a href="/wiki/Code_page_1287" title="Code page 1287">Code page 1287</a> (Greek)</li> <li><a href="/wiki/Code_page_1288" title="Code page 1288">Code page 1288</a> (Turkish)</li> <li><a href="/wiki/DEC_Hebrew" title="DEC Hebrew">Hebrew</a></li> <li><a href="/wiki/National_Replacement_Character_Set" title="National Replacement Character Set">National Replacement</a></li> <li><a href="/wiki/DEC_RADIX_50" title="DEC RADIX 50">RADIX 50</a></li> <li><a href="/wiki/DEC_Special_Graphics" title="DEC Special Graphics">Special Graphics</a></li> <li><a href="/wiki/DEC_Technical_Character_Set" title="DEC Technical Character Set">Technical</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Bus_(computing)" title="Bus (computing)">Bus standards</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Digital_Storage_Systems_Interconnect" title="Digital Storage Systems Interconnect">Digital Storage Systems Interconnect</a></li> <li><a href="/wiki/Massbus" title="Massbus">Massbus</a></li> <li><a href="/wiki/Q-Bus" title="Q-Bus">Q-Bus</a></li> <li><a href="/wiki/Standard_Disk_Interconnect" title="Standard Disk Interconnect">Standard Disk Interconnect</a></li> <li><a href="/wiki/Synchronous_Backplane_Interconnect" title="Synchronous Backplane Interconnect">Synchronous Backplane Interconnect</a></li> <li><a href="/wiki/TURBOchannel" title="TURBOchannel">TURBOchannel</a></li> <li><a href="/wiki/Unibus" title="Unibus">Unibus</a></li> <li><a href="/wiki/VAXBI_bus" title="VAXBI bus">VAXBI bus</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other <a href="/wiki/Computer_hardware" title="Computer hardware">hardware</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/DECtalk" title="DECtalk">DECtalk</a></li> <li><a href="/wiki/DECtape" title="DECtape">DECtape</a></li> <li><a href="/wiki/DECwriter" title="DECwriter">DECwriter</a></li> <li><a class="mw-selflink selflink">Digital Linear Tape</a></li> <li><a href="/wiki/Dynamically_Redefined_Character_Set" title="Dynamically Redefined Character Set">Dynamically Redefined Character Set</a></li> <li><a href="/wiki/Firefly_(cache_coherence_protocol)" title="Firefly (cache coherence protocol)">Firefly</a></li> <li><a href="/wiki/Flip-Chip_module" title="Flip-Chip module">Flip-Chip module</a></li> <li><a href="/wiki/Gold_key_(DEC)" title="Gold key (DEC)">Gold key</a></li> 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