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title="IBM ThinkPad T20">IBM ThinkPad T20</a>)</span></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Series of laptops by IBM</div> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox"><caption class="infobox-title">IBM ThinkPad T20 series</caption><tbody><tr><td colspan="2" class="infobox-image"><span typeof="mw:File"><a href="/wiki/File:IBM_ThinkPad_logo_askew.svg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0c/IBM_ThinkPad_logo_askew.svg/100px-IBM_ThinkPad_logo_askew.svg.png" decoding="async" width="100" height="67" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0c/IBM_ThinkPad_logo_askew.svg/150px-IBM_ThinkPad_logo_askew.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/0c/IBM_ThinkPad_logo_askew.svg/200px-IBM_ThinkPad_logo_askew.svg.png 2x" data-file-width="3062" data-file-height="2042" /></a></span></td></tr><tr><td colspan="2" class="infobox-image"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/File:ThinkPad_T20.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/a/a7/ThinkPad_T20.jpg/220px-ThinkPad_T20.jpg" decoding="async" width="220" height="274" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/a/a7/ThinkPad_T20.jpg/330px-ThinkPad_T20.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/a/a7/ThinkPad_T20.jpg/440px-ThinkPad_T20.jpg 2x" data-file-width="585" data-file-height="728" /></a></span><div class="infobox-caption">IBM ThinkPad T20, the first of the series</div></td></tr><tr><th scope="row" class="infobox-label">Manufacturer</th><td class="infobox-data"><a href="/wiki/IBM" title="IBM">IBM</a></td></tr><tr><th scope="row" class="infobox-label">Introduced</th><td class="infobox-data">May 2000</td></tr><tr><th scope="row" class="infobox-label">Discontinued</th><td class="infobox-data">July 2003</td></tr><tr><th scope="row" class="infobox-label">Processor</th><td class="infobox-data"><a href="/wiki/Intel" title="Intel">Intel</a> <a href="/wiki/Pentium_III" title="Pentium III">Pentium III</a></td></tr><tr><th scope="row" class="infobox-label">Frequency</th><td class="infobox-data">650 MHz – 1.20 GHz</td></tr><tr><th scope="row" class="infobox-label">Memory</th><td class="infobox-data">64–256 MB <a href="/wiki/SDRAM" class="mw-redirect" title="SDRAM">SDRAM</a> (<a href="/wiki/PC100" class="mw-redirect" title="PC100">PC100</a> on T20/T21/T22, <a href="/wiki/PC133" class="mw-redirect" title="PC133">PC133</a> on T23)</td></tr><tr><th scope="row" class="infobox-label">Ports</th><td class="infobox-data"><a href="/wiki/Serial_port" title="Serial port">Serial</a>, <a href="/wiki/Parallel_port" title="Parallel port">Parallel</a>, <a href="/wiki/VGA_connector" title="VGA connector">VGA out</a>, <a href="/wiki/Universal_Serial_Bus" class="mw-redirect" title="Universal Serial Bus">USB</a>, PS/2 Port, Ethernet, RJ11 (Modem), IBM docking port, <a href="/wiki/CardBus" class="mw-redirect" title="CardBus">CardBus</a>, S-Video Out, Line-In/Line-Out/Microphone</td></tr></tbody></table><p>The <b>IBM <a href="/wiki/ThinkPad" title="ThinkPad">ThinkPad</a> T20 series</b> was a series of <a href="/wiki/Notebook_computer" class="mw-redirect" title="Notebook computer">notebook computers</a> introduced in May 2000 by <a href="/wiki/IBM" title="IBM">IBM</a> as the successor of the 770 series and the first model of the T-series which exists today under <a href="/wiki/Lenovo" title="Lenovo">Lenovo</a> ownership. Four models were produced, the T20, T21, T22, and T23;<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> the series was succeeded in May 2002 by the ThinkPad T30, but was produced until July 2003. </p><meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Features">Features</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=IBM_ThinkPad_T20_series&action=edit&section=1" title="Edit section: Features"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The T20 series succeeded the <a href="/wiki/IBM_ThinkPad_600" title="IBM ThinkPad 600">600 series</a>, adding new features such as S-Video output, an Ethernet port, and the UltraBay 2000 hot-swappable bay. The graphics card was upgraded from the 4MB NeoMagic 256ZX which was used in the 600X, to an 8MB <a href="/wiki/S3_Savage" title="S3 Savage">S3 Savage</a> (16MB on T23 models) which was capable of rendering 3D graphics in hardware. The ThinkPad T23 was also the first ThinkPad laptop model to offer an optional <a href="/wiki/WiFi" class="mw-redirect" title="WiFi">WiFi</a> connection via a <a href="/wiki/Mini-PCI" class="mw-redirect" title="Mini-PCI">mini-PCI</a> card, using wireless antennas which were built into the lid on select upper-end models. The T20 series originally shipped with either <a href="/wiki/Windows_98" title="Windows 98">Windows 98</a>, <a href="/wiki/Windows_2000" title="Windows 2000">Windows 2000</a>, or <a href="/wiki/Linux" title="Linux">Linux</a>, with later T23 models shipping with <a href="/wiki/Windows_XP" title="Windows XP">Windows XP</a>. All T20 models were capable of running <a href="/wiki/Windows_3.x" title="Windows 3.x">Windows 3.x</a>, <a href="/wiki/Windows_95" title="Windows 95">Windows 95</a>, <a href="/wiki/Windows_NT_4.0" title="Windows NT 4.0">Windows NT 4.0</a>, <a href="/wiki/OS/2_Warp_4" class="mw-redirect" title="OS/2 Warp 4">OS/2 Warp 4</a>, or <a href="/wiki/Windows_Me" title="Windows Me">Windows Me</a> as well as various Linux distributions. Additionally, the T23 was capable of running <a href="/wiki/Windows_Vista" title="Windows Vista">Windows Vista</a> or <a href="/wiki/Windows_7" title="Windows 7">Windows 7</a>, if equipped with at least 512MB of memory. One common problem of the earlier T20 series was a hardware defect which caused the machine to suddenly stop working and begin blinking the hard drive and power indicators. The machine would not power on. This became known as the "Blink of Death". In addition, on some T23 models, the rear memory slot could fail, rendering the machine only able to use up to 512 MB of memory, rather than 1 GB. Another common issue with the T23 was that one of the coils, near the CPU, could break off the motherboard due to cold solder joints. This caused multiple issues, including the inability to boot or hard lockup/freeze. </p> <div class="mw-heading mw-heading2"><h2 id="Models">Models</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=IBM_ThinkPad_T20_series&action=edit&section=2" title="Edit section: Models"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><b>ThinkPad T20</b> - First model shipped, featured a <a href="/wiki/Pentium_III" title="Pentium III">Pentium III</a> at 650, 700 or 750 MHz, all with <a href="/wiki/SpeedStep" title="SpeedStep">SpeedStep</a> technology. This model shipped with either a 13.3" XGA TFT or 14.1" XGA TFT display, and shipped with an external <a href="/wiki/Floppy_drive" class="mw-redirect" title="Floppy drive">floppy drive</a>, a swappable <a href="/wiki/CD-ROM" title="CD-ROM">CD-ROM</a> or <a href="/wiki/DVD-ROM" class="mw-redirect" title="DVD-ROM">DVD-ROM</a> drive, and a choice of a 6 GB, 12 GB, or a 20 GB hard drive. The T20 also had optional Ethernet (consumer installable via mini-PCI on all models), one USB 1.1 port, PC Card Slot, and an S-Video output as standard features, and shipped with 128MB of RAM (upgradeable to 512 MB using PC100 <a href="/wiki/SO-DIMM" class="mw-redirect" title="SO-DIMM">SO-DIMMs</a>)</li> <li><b>ThinkPad T21</b> - Featuring an upgraded <a href="/wiki/Pentium_III" title="Pentium III">Pentium III</a> processor at either 750 MHz, 800 MHz, or 850 MHz, the T21 featured either a 13.3" XGA TFT, 14.1" XGA TFT, or a new 14.1" SXGA+ TFT display (exclusive to 850 MHz models). This model shipped with a swappable CD-ROM or DVD-ROM drive, and a choice of a 10 GB, 20 GB or 32 GB hard drive. The T21 features either a mini-PCI modem card or an Ethernet/modem combo card, one USB 1.1 port, <a href="/wiki/PC_Card" title="PC Card">PC Card</a> Slot, and 128 MB of RAM standard (upgradeable to 512 MB using PC100 SODIMMs).</li> <li><b>ThinkPad T22</b> - Featuring an upgraded <a href="/wiki/Pentium_III" title="Pentium III">Pentium III</a> processor at either 800 MHz, 900 MHz, or 1.00 GHz, the T22 featured either a 13.3" XGA TFT, 14.1" XGA TFT, or 14.1" SXGA+ TFT display as standard. This model shipped a mini-PCI modem card or an Ethernet/modem combo card, one USB 1.1 port, PC Card Slot, a swappable CD-ROM or DVD-ROM drive, either a 10GB, 20GB or 32 GB hard drive, and 128 MB or 256 MB of RAM standard (upgradeable to 512 MB using PC100 SODIMMs).</li> <li><b>ThinkPad T23</b> - The final model of the T20 series, featuring the new <a href="/wiki/Pentium_III#Tualatin" title="Pentium III">Tualatin</a> Pentium III-M at either 866 MHz, 1.00 GHz, 1.13 GHz, or 1.20 GHz (all with <a href="/wiki/SpeedStep" title="SpeedStep">SpeedStep</a> technology) and either a 13.3" XGA TFT, 14.1" XGA TFT, or 14.1" SXGA+ TFT display as standard. This model shipped with 2× USB 1.1 ports rather than only one, a 15 GB to 60 GB hard drive, a <a href="/wiki/Mini-PCI" class="mw-redirect" title="Mini-PCI">Mini-PCI</a> Modem or Wireless card (on select models), a CD-ROM, DVD-ROM, CD-RW or combo (CD-RW/DVD) drive, and either 128 MB or 256 MB of RAM standard (upgradeable to 1 GB using PC133 SODIMMs).</li></ul> <div class="mw-heading mw-heading3"><h3 id="Comparison">Comparison</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=IBM_ThinkPad_T20_series&action=edit&section=3" title="Edit section: Comparison"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="wikitable mw-collapsible" style="font-size:85%"> <caption>For all model versions/specifications: <a rel="nofollow" class="external free" href="https://psref.lenovo.com/syspool/Sys/PDF/withdrawnbook/tawbook.pdf">https://psref.lenovo.com/syspool/Sys/PDF/withdrawnbook/tawbook.pdf</a> </caption> <tbody><tr> <th>Model </th> <th>Intro-<br />duction<br />Date </th> <th>With-<br />drawal<br />Date </th> <th>Base<br />Price </th> <th>Screen Options<br /><a href="/wiki/Thin-film-transistor_liquid-crystal_display" class="mw-redirect" title="Thin-film-transistor liquid-crystal display">TFT</a> </th> <th>CPU<br />Options </th> <th>Memory<br />(std - max) </th> <th>Video<br />Controller </th> <th>Audio<br />Controller </th> <th colspan="4">Hard Drive<br />Options </th> <th>Misc<br />Info </th></tr> <tr> <th>T20 </th> <td>May 2000 </td> <td>? </td> <td>? </td> <td>13.3" XGA 1024×768<br />14.1" XGA 1024×768 </td> <td><a href="/wiki/Pentium_III" title="Pentium III">Pentium III</a> - 650, 700, or 750 <a href="/wiki/MegaHertz" class="mw-redirect" title="MegaHertz">MHz</a><br /><a href="/wiki/SpeedStep" title="SpeedStep">SpeedStep</a><br />100 MHz Bus<br />256 KB <a href="/wiki/Cache_(computing)" title="Cache (computing)">cache</a> </td> <td rowspan="4">128 - 512 MB<br />100 MHz<br /><a href="/wiki/Synchronous_dynamic_random-access_memory" title="Synchronous dynamic random-access memory">SDRAM</a> </td> <td><a href="/wiki/VIA_Technologies" title="VIA Technologies">Via</a><br /><a href="/wiki/S3_Savage" title="S3 Savage">S3 Savage</a> IX8<br />8 MB <a href="/wiki/SGRAM" class="mw-redirect" title="SGRAM">SGRAM</a><br /><a href="/wiki/Accelerated_Graphics_Port" title="Accelerated Graphics Port">AGP 2x</a> </td> <td rowspan="4"><a href="/wiki/Cirrus_Logic" title="Cirrus Logic">Cirrus</a><br />CS4264<br />CS4297A </td> <td>6 GB </td> <td>12 GB </td> <td>18 GB </td> <td>20 GB </td> <td rowspan="4"><a href="/wiki/ThinkPad_UltraBay" title="ThinkPad UltraBay">Ultrabay 2000</a><br /><a href="/wiki/ThinkLight" title="ThinkLight">ThinkLight</a><br /><a href="/wiki/IBM_ThinkPad_UltraPort" title="IBM ThinkPad UltraPort">UltraPort</a><br /><a href="/wiki/Modem" title="Modem">56K Modem</a><br /><a href="/wiki/Lithium-ion_battery" title="Lithium-ion battery">Li-Ion Battery</a><br />(4 hr) </td></tr> <tr> <th>T21 </th> <td>Oct 2000 </td> <td>? </td> <td>? </td> <td rowspan="2">13.3" XGA 1024×768<br />14.1" XGA 1024×768<br />14.1" SXGA+ 1400×1050 </td> <td><a href="/wiki/Pentium_III" title="Pentium III">Pentium III</a> - 750, 800, or 850 <a href="/wiki/MegaHertz" class="mw-redirect" title="MegaHertz">MHz</a><br /><a href="/wiki/SpeedStep" title="SpeedStep">SpeedStep</a><br />100 MHz Bus<br />256 KB <a href="/wiki/Cache_(computing)" title="Cache (computing)">cache</a> </td> <td><a href="/wiki/VIA_Technologies" title="VIA Technologies">Via</a><br />S3 Savage IX8 or IX8+<br />8 MB <a href="/wiki/SGRAM" class="mw-redirect" title="SGRAM">SGRAM</a><br /><a href="/wiki/Accelerated_Graphics_Port" title="Accelerated Graphics Port">AGP 2x</a> </td> <td>10 GB </td> <td colspan="2">20 GB </td> <td>32 GB </td></tr> <tr> <th>T22 </th> <td>Mar 2001 </td> <td>? </td> <td>? </td> <td><a href="/wiki/Pentium_III" title="Pentium III">Pentium III</a> - 800 or 900 <a href="/wiki/MegaHertz" class="mw-redirect" title="MegaHertz">MHz</a>, or 1 GHz<br /><a href="/wiki/SpeedStep" title="SpeedStep">SpeedStep</a><br />100 MHz Bus<br />256 KB <a href="/wiki/Cache_(computing)" title="Cache (computing)">cache</a> </td> <td rowspan="2"><a href="/wiki/VIA_Technologies" title="VIA Technologies">Via</a><br />S3 Savage IX8+<br />8 MB <a href="/wiki/SGRAM" class="mw-redirect" title="SGRAM">SGRAM</a><br /><a href="/wiki/Accelerated_Graphics_Port" title="Accelerated Graphics Port">AGP 2x</a> </td> <td>15 GB </td> <td colspan="2">30 GB </td> <td>32 GB </td></tr> <tr> <th>T22<br />(<a href="/wiki/Small_business" title="Small business">SB</a>) </th> <td>Mar 2001 </td> <td>? </td> <td>? </td> <td>14.1" XGA 1024×768<br />14.1" SXGA+ 1400×1050 </td> <td><a href="/wiki/Pentium_III" title="Pentium III">Pentium III</a> - 900 <a href="/wiki/MegaHertz" class="mw-redirect" title="MegaHertz">MHz</a> or 1 GHz<br /><a href="/wiki/SpeedStep" title="SpeedStep">SpeedStep</a><br />100 MHz Bus<br />256 KB <a href="/wiki/Cache_(computing)" title="Cache (computing)">cache</a> </td> <td>15 GB </td> <td>30 GB </td> <td>32 GB </td> <td>48 GB </td></tr> <tr> <th>T23 </th> <td>Jul 2001 </td> <td>? </td> <td>? </td> <td>13.3" XGA 1024×768<br />14.1" XGA 1024×768<br />14.1" SXGA+ 1400×1050 </td> <td><a href="/wiki/Pentium_III" title="Pentium III">Pentium III</a> - 866 <a href="/wiki/MegaHertz" class="mw-redirect" title="MegaHertz">MHz</a> or 1.13 GHz<br /><a href="/wiki/SpeedStep" title="SpeedStep">SpeedStep</a><br />133 MHz Bus<br />512 KB <a href="/wiki/Cache_(computing)" title="Cache (computing)">cache</a> </td> <td rowspan="2">128 MB - 1 GB<br />133 MHz<br /><a href="/wiki/Synchronous_dynamic_random-access_memory" title="Synchronous dynamic random-access memory">SDRAM</a> </td> <td rowspan="4"><a href="/wiki/VIA_Technologies" title="VIA Technologies">Via</a><br />S3 Super Savage IXC16<br />16MB <a href="/wiki/SGRAM" class="mw-redirect" title="SGRAM">SGRAM</a><br /><a href="/wiki/Accelerated_Graphics_Port" title="Accelerated Graphics Port">AGP 4x</a> </td> <td rowspan="4"><a href="/wiki/Cirrus_Logic" title="Cirrus Logic">Cirrus</a><br />CS4299 </td> <td>15 GB </td> <td colspan="2">30 GB </td> <td>48 GB </td> <td><a href="/wiki/ThinkPad_UltraBay" title="ThinkPad UltraBay">Ultrabay 2000</a><br /><a href="/wiki/ThinkLight" title="ThinkLight">ThinkLight</a><br /><a href="/wiki/IBM_ThinkPad_UltraPort" title="IBM ThinkPad UltraPort">UltraPort</a><br /><a href="/wiki/Modem" title="Modem">56K Modem</a><br /><a href="/wiki/IEEE_802.11b-1999" title="IEEE 802.11b-1999">802.11b Modem</a><br /><a href="/wiki/Lithium-ion_battery" title="Lithium-ion battery">Li-Ion Battery</a> </td></tr> <tr> <th>T23<br />(Fall) </th> <td>Oct 2001 </td> <td>? </td> <td>? </td> <td>14.1" XGA 1024×768<br />14.1" SXGA+ 1400×1050 </td> <td><a href="/wiki/Pentium_III" title="Pentium III">Pentium III</a> - 1.0, 1.13 or 1.2 GHz<br /><a href="/wiki/SpeedStep" title="SpeedStep">SpeedStep</a><br />133 MHz Bus<br />512 KB <a href="/wiki/Cache_(computing)" title="Cache (computing)">cache</a> </td> <td>30 GB </td> <td colspan="2">40 GB </td> <td>48 GB </td> <td><a href="/wiki/ThinkPad_UltraBay" title="ThinkPad UltraBay">Ultrabay Plus</a><br /><a href="/wiki/ThinkLight" title="ThinkLight">ThinkLight</a><br /><a href="/wiki/IBM_ThinkPad_UltraPort" title="IBM ThinkPad UltraPort">UltraPort</a><br /><a href="/wiki/Modem" title="Modem">56K Modem</a><br /><a href="/wiki/Wireless_LAN" title="Wireless LAN">WLAN</a><br /><a href="/wiki/Lithium-ion_battery" title="Lithium-ion battery">Li-Ion Battery</a> </td></tr> <tr> <th>T23<br />(<a href="/wiki/Education" title="Education">Ed</a>) </th> <td>Apr 2002 </td> <td>? </td> <td>? </td> <td rowspan="2">14.1" XGA 1024×768 </td> <td><a href="/wiki/Pentium_III" title="Pentium III">Pentium III</a> - 1.0 GHz<br /><a href="/wiki/SpeedStep" title="SpeedStep">SpeedStep</a><br />133 MHz Bus<br />512 KB <a href="/wiki/Cache_(computing)" title="Cache (computing)">cache</a> </td> <td rowspan="2">256 MB - 1 GB<br />133 MHz<br /><a href="/wiki/Synchronous_dynamic_random-access_memory" title="Synchronous dynamic random-access memory">SDRAM</a> </td> <td>20 GB </td> <td colspan="2">40 GB </td> <td>80 GB </td> <td><a href="/wiki/ThinkPad_UltraBay" title="ThinkPad UltraBay">Ultrabay Plus</a><br /><a href="/wiki/ThinkLight" title="ThinkLight">ThinkLight</a><br /><a href="/wiki/IBM_ThinkPad_UltraPort" title="IBM ThinkPad UltraPort">UltraPort</a><br /><a href="/wiki/Wireless_LAN" title="Wireless LAN">WLAN</a><br /><a href="/wiki/Lithium-ion_battery" title="Lithium-ion battery">Li-Ion Battery</a> </td></tr> <tr> <th>T23 <p>(02) </p> </th> <td>Jun 2002 </td> <td>? </td> <td>? </td> <td><a href="/wiki/Pentium_III" title="Pentium III">Pentium III</a> - 1.0, 1.13 or 1.2 GHz<br /><a href="/wiki/SpeedStep" title="SpeedStep">SpeedStep</a><br />133 MHz Bus<br />512 KB <a href="/wiki/Cache_(computing)" title="Cache (computing)">cache</a> </td> <td>20 GB </td> <td>30 GB </td> <td>40 GB </td> <td>80 GB </td> <td><a href="/wiki/ThinkPad_UltraBay" title="ThinkPad UltraBay">Ultrabay Plus</a><br /><a href="/wiki/ThinkLight" title="ThinkLight">ThinkLight</a><br /><a href="/wiki/Modem" title="Modem">56K Modem</a><br /><a href="/wiki/Wireless_LAN" title="Wireless LAN">WLAN</a><br /><a href="/wiki/Lithium-ion_battery" title="Lithium-ion battery">Li-Ion Battery</a> </td></tr></tbody></table> <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=IBM_ThinkPad_T20_series&action=edit&section=4" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/ThinkPad_T_Series" class="mw-redirect" title="ThinkPad T Series">ThinkPad T Series</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=IBM_ThinkPad_T20_series&action=edit&section=5" 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 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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%">Single models</th><td class="navbox-list-with-group navbox-list navbox-off" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IBM_5120" title="IBM 5120">5120</a></li> <li><a href="/wiki/IBM_System/23_Datamaster" title="IBM System/23 Datamaster">DataMaster</a></li> <li><a href="/wiki/IBM_Personal_Computer" title="IBM Personal Computer">PC</a> <ul><li><a href="/wiki/List_of_IBM_Personal_Computer_models" title="List of IBM Personal Computer models">list of models</a></li></ul></li> <li><a href="/wiki/IBM_Personal_Computer_XT" title="IBM Personal Computer XT">PC XT</a> <ul><li><a href="/wiki/PC-based_IBM_mainframe-compatible_systems" title="PC-based IBM mainframe-compatible systems">XT/370</a></li> <li><a href="/wiki/IBM_3270_PC" title="IBM 3270 PC">3270 PC</a></li> <li><a href="/wiki/IBM_Personal_Computer_XT_286" class="mw-redirect" title="IBM Personal Computer XT 286">XT 286</a></li></ul></li> <li><a href="/wiki/IBM_JX" title="IBM JX">JX</a></li> <li><a href="/wiki/IBM_PCjr" title="IBM PCjr">PCjr</a></li> <li><a href="/wiki/IBM_Personal_Computer_AT" title="IBM Personal Computer AT">PC AT</a> <ul><li><a href="/wiki/PC-based_IBM_mainframe-compatible_systems" title="PC-based IBM mainframe-compatible systems">AT/370</a></li> <li><a href="/wiki/PC-based_IBM_mainframe-compatible_systems" title="PC-based IBM mainframe-compatible systems">3270 AT</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Series</th><td class="navbox-list-with-group navbox-list navbox-off" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IBM_5550" title="IBM 5550">5550</a></li> <li><a href="/wiki/IBM_Industrial_Computer" class="mw-redirect" title="IBM Industrial Computer">Industrial Computer</a></li> <li><a href="/wiki/IBM_PS/2" title="IBM PS/2">PS/2</a> <ul><li><a href="/wiki/List_of_IBM_PS/2_models" title="List of IBM PS/2 models">list of models</a></li> <li><a href="/wiki/IBM_PS/2_Model_25" title="IBM PS/2 Model 25">25</a></li> <li><a href="/wiki/IBM_PS/2_Model_25" title="IBM PS/2 Model 25">25 286</a></li> <li><a href="/wiki/IBM_PS/2_Model_25" title="IBM PS/2 Model 25">25 SX</a></li> <li><a href="/wiki/IBM_PS/2_Model_30" title="IBM PS/2 Model 30">30</a></li> <li><a href="/wiki/IBM_PS/2_Model_30" title="IBM PS/2 Model 30">30 286</a></li> <li><a href="/wiki/IBM_PS/2_Model_50" title="IBM PS/2 Model 50">50</a></li> <li><a href="/wiki/IBM_PS/2_Model_50" title="IBM PS/2 Model 50">50 Z</a></li> <li><a href="/wiki/IBM_PS/2_Model_55_SX" title="IBM PS/2 Model 55 SX">55 SX</a></li> <li><a href="/wiki/IBM_PS/2_Model_55_SX" title="IBM PS/2 Model 55 SX">55 LS</a></li> <li><a href="/wiki/IBM_PS/2_Model_60" title="IBM PS/2 Model 60">60</a></li> <li><a href="/wiki/IBM_PS/2_Model_60" title="IBM PS/2 Model 60">65 SX</a></li> <li><a href="/wiki/IBM_PS/2_Model_70" title="IBM PS/2 Model 70">70 386</a></li> <li><a href="/wiki/IBM_PS/2_Model_70" title="IBM PS/2 Model 70">70 486</a></li> <li><a href="/wiki/IBM_PS/2_Model_80" title="IBM PS/2 Model 80">80</a></li> <li><a href="/wiki/IBM_PS/2_E" title="IBM PS/2 E">E</a></li></ul></li> <li><a href="/wiki/IBM_PS/55" title="IBM PS/55">PS/55</a></li> <li><a href="/wiki/IBM_PS/V" class="mw-redirect" title="IBM PS/V">PS/V</a></li> <li><a href="/wiki/IBM_PS/1" title="IBM PS/1">PS/1</a></li> <li><a href="/wiki/EduQuest" title="EduQuest">EduQuest</a></li> <li><a href="/wiki/IBM_PS/ValuePoint" title="IBM PS/ValuePoint">ValuePoint</a></li> <li><a href="/wiki/Ambra_Computer_Corporation" title="Ambra Computer Corporation">Ambra</a></li> <li><a href="/wiki/IBM_PC_Series" title="IBM PC Series">PC Series</a></li> <li><a href="/wiki/IBM_Aptiva" title="IBM Aptiva">Aptiva</a></li> <li><a href="/wiki/IBM_NetVista" title="IBM NetVista">NetVista</a></li> <li><a href="/wiki/ThinkCentre" title="ThinkCentre">ThinkCentre</a> <ul><li><a href="/wiki/ThinkCentre_A_series" title="ThinkCentre A series">A series</a></li> <li><a href="/wiki/ThinkCentre_M_series" title="ThinkCentre M series">M series</a></li></ul></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Portable</th><td class="navbox-list-with-group navbox-list navbox-off" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IBM_5100" title="IBM 5100">5100</a></li> <li><a href="/wiki/IBM_5110" title="IBM 5110">5110</a></li> <li><a href="/wiki/IBM_Portable_Personal_Computer" title="IBM Portable Personal Computer">Portable PC</a></li> <li><a href="/wiki/IBM_PS/2_portable_computers" title="IBM PS/2 portable computers">PS/2 portables</a> <ul><li><a href="/wiki/IBM_PS/2_portable_computers" title="IBM PS/2 portable computers">P70</a></li> <li><a href="/wiki/IBM_PS/2_portable_computers" title="IBM PS/2 portable computers">P75</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Laptop</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"></table><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">pre-ThinkPad</th><td class="navbox-list-with-group navbox-list navbox-off" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IBM_PC_Convertible" title="IBM PC Convertible">Convertible</a></li> <li>PS/2 Laptop <ul><li><a href="/wiki/IBM_PS/2_Model_L40_SX" title="IBM PS/2 Model L40 SX">L40 SX</a></li> <li><a href="/wiki/IBM_PS/2_Model_CL57_SX" title="IBM PS/2 Model CL57 SX">CL57 SX</a></li></ul></li> <li><a href="/wiki/IBM_PS/2_Note_and_PS/note" title="IBM PS/2 Note and PS/note">PS/2 Note and PS/note</a> <ul><li><a href="/wiki/IBM_PS/2_Note#N33SX" class="mw-redirect" title="IBM PS/2 Note">N33SX</a></li> <li><a href="/wiki/IBM_PS/2_Note#N45SL" class="mw-redirect" title="IBM PS/2 Note">N45SL</a></li> <li><a href="/wiki/IBM_PS/2_Note#N51SX" class="mw-redirect" title="IBM PS/2 Note">N51SX</a></li> <li><a href="/wiki/IBM_PS/2_Note#N51SLC" class="mw-redirect" title="IBM PS/2 Note">N51SLC</a></li> <li><a href="/wiki/IBM_PS/2_Note#Model_425/425C" class="mw-redirect" title="IBM PS/2 Note">Model 425/425C</a></li></ul></li> <li><a href="/wiki/IBM_PS/55_Note" title="IBM PS/55 Note">PS/55 Note</a></li> <li><a href="/wiki/IBM_PCradio" title="IBM PCradio">PCradio</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/ThinkPad" title="ThinkPad">ThinkPad</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><td colspan="2" class="navbox-list navbox-off" style="width:100%;padding:0;background:transparent;color:inherit;"><div style="padding:0px"><table class="navbox-columns-table" style="border-spacing: 0px; text-align:left;width:100%;"><tbody><tr style="vertical-align:top"><td class="navbox-list" style="padding:0px;vertical-align:top;width:50%;"><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">2<i>xx</i> series</th><td class="navbox-list-with-group navbox-list navbox-off" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IBM_ThinkPad_220" title="IBM ThinkPad 220">220</a></li> <li><a href="/wiki/IBM_ThinkPad_230" class="mw-redirect" title="IBM ThinkPad 230">230</a></li> <li><a href="/wiki/IBM_ThinkPad_235" class="mw-redirect" title="IBM ThinkPad 235">235</a></li> <li><a href="/wiki/IBM_ThinkPad_240" title="IBM ThinkPad 240">240</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">3<i>xx</i> series</th><td class="navbox-list-with-group navbox-list navbox-off" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IBM_ThinkPad_300" title="IBM ThinkPad 300">300</a></li> <li><a href="/wiki/IBM_ThinkPad_310" title="IBM ThinkPad 310">310</a></li> <li><a href="/wiki/IBM_ThinkPad_350" title="IBM ThinkPad 350">350</a></li> <li><a href="/wiki/IBM_ThinkPad_360" title="IBM ThinkPad 360">360</a></li> <li><a href="/wiki/IBM_ThinkPad_365" title="IBM ThinkPad 365">365</a></li> <li><a href="/wiki/IBM_ThinkPad_380" title="IBM ThinkPad 380">380</a></li> <li><a href="/wiki/IBM_ThinkPad_390" class="mw-redirect" title="IBM ThinkPad 390">390</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">5<i>xx</i> series</th><td class="navbox-list-with-group navbox-list navbox-off" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IBM_ThinkPad_500" title="IBM ThinkPad 500">500</a></li> <li><a href="/wiki/Canon_NoteJet#IBM_ThinkPad_550BJ" title="Canon NoteJet">550BJ</a></li> <li><a href="/wiki/Canon_NoteJet#IBM_ThinkPad_555BJ" title="Canon NoteJet">555BJ</a></li> <li><a href="/wiki/IBM_ThinkPad_560" title="IBM ThinkPad 560">560</a></li> <li><a href="/wiki/IBM_ThinkPad_570" title="IBM ThinkPad 570">570</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">6<i>xx</i> series</th><td class="navbox-list-with-group navbox-list navbox-off" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IBM_ThinkPad_600" title="IBM ThinkPad 600">600</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">7<i>xx</i> series</th><td class="navbox-list-with-group navbox-list navbox-off" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IBM_ThinkPad_700" title="IBM ThinkPad 700">700</a></li> <li><a href="/wiki/IBM_ThinkPad_701" title="IBM ThinkPad 701">701 "Butterfly"</a></li> <li><a href="/wiki/IBM_ThinkPad_750" title="IBM ThinkPad 750">750</a></li> <li><a href="/wiki/IBM_ThinkPad_755" title="IBM ThinkPad 755">755</a></li> <li><a href="/wiki/IBM_ThinkPad_760" title="IBM ThinkPad 760">760</a></li> <li><a href="/wiki/IBM_ThinkPad_765" class="mw-redirect" title="IBM ThinkPad 765">765</a></li> <li><a href="/wiki/IBM_ThinkPad_770" title="IBM ThinkPad 770">770</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/IBM_ThinkPad_Power_Series" title="IBM ThinkPad Power Series">Power Series</a></th><td class="navbox-list-with-group navbox-list navbox-off" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IBM_ThinkPad_Power_Series" title="IBM ThinkPad Power Series">800</a></li> <li><a href="/wiki/IBM_ThinkPad_Power_Series" title="IBM ThinkPad Power Series">820</a></li> <li><a href="/wiki/IBM_ThinkPad_Power_Series" title="IBM ThinkPad Power Series">821</a></li> <li><a href="/wiki/IBM_ThinkPad_Power_Series" title="IBM ThinkPad Power Series">822</a></li> <li><a href="/wiki/IBM_ThinkPad_Power_Series" title="IBM ThinkPad Power Series">823</a></li> <li><a href="/wiki/IBM_ThinkPad_Power_Series" title="IBM ThinkPad Power Series">850</a></li> <li><a href="/wiki/IBM_ThinkPad_Power_Series" title="IBM ThinkPad Power Series">851</a></li> <li><a href="/wiki/IBM_ThinkPad_Power_Series" title="IBM ThinkPad Power Series">860</a></li></ul> </div></td></tr></tbody></table><div> </div></td><td class="navbox-list" style="border-left:2px solid #fdfdfd;padding:0px;vertical-align:top;width:50%;"><div> </div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/ThinkPad_G_series" title="ThinkPad G series">G series</a></th><td class="navbox-list-with-group navbox-list navbox-off" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ThinkPad_G_series" title="ThinkPad G series">G40</a></li> <li><a href="/wiki/ThinkPad_G_series" title="ThinkPad G series">G41</a></li> <li><a href="/wiki/ThinkPad_G_series" title="ThinkPad G series">G50</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/ThinkPad_T_series" title="ThinkPad T series">T series</a></th><td class="navbox-list-with-group navbox-list navbox-off" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IBM_ThinkPad_T20" class="mw-redirect" title="IBM ThinkPad T20">T20</a></li> <li><a href="/wiki/IBM_ThinkPad_T21" class="mw-redirect" title="IBM ThinkPad T21">T21</a></li> <li><a href="/wiki/IBM_ThinkPad_T22" class="mw-redirect" title="IBM ThinkPad T22">T22</a></li> <li><a href="/wiki/IBM_ThinkPad_T23" class="mw-redirect" title="IBM ThinkPad T23">T23</a></li> <li><a href="/wiki/IBM_ThinkPad_T30" title="IBM ThinkPad T30">T30</a></li> <li><a href="/wiki/IBM_ThinkPad_T40" title="IBM ThinkPad T40">T40</a></li> <li><a href="/wiki/IBM_ThinkPad_T41" title="IBM ThinkPad T41">T41</a></li> <li><a href="/wiki/IBM_ThinkPad_T42" title="IBM ThinkPad T42">T42</a></li> <li><a href="/wiki/IBM_ThinkPad_T43" title="IBM ThinkPad T43">T43</a></li> <li><a href="/wiki/ThinkPad_T60" title="ThinkPad T60">T60</a></li> <li><a href="/wiki/ThinkPad_T61" title="ThinkPad T61">T61</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/ThinkPad_A_series" class="mw-redirect" title="ThinkPad A series">A series</a></th><td class="navbox-list-with-group navbox-list navbox-off" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li>A20m</li> <li>A21m</li> <li>A22m</li> <li>A22e</li> <li>A20p</li> <li>A21p</li> <li>A22p</li> <li>A30</li> <li>A31</li> <li>A30p</li> <li>A31p</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/ThinkPad_X_series" title="ThinkPad X series">X series</a></th><td class="navbox-list-with-group navbox-list navbox-off" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ThinkPad_X_series" title="ThinkPad X series">X20</a></li> <li><a href="/wiki/ThinkPad_X_series" title="ThinkPad X series">X21</a></li> <li><a href="/wiki/ThinkPad_X_series" title="ThinkPad X series">X22</a></li> <li><a href="/wiki/ThinkPad_X_series" title="ThinkPad X series">X23</a></li> <li><a href="/wiki/ThinkPad_X_series" title="ThinkPad X series">X24</a></li> <li><a href="/wiki/ThinkPad_X_series" title="ThinkPad X series">X30</a></li> <li><a href="/wiki/ThinkPad_X_series" title="ThinkPad X series">X31</a></li> <li><a href="/wiki/ThinkPad_X_series" title="ThinkPad X series">X32</a></li> <li><a href="/wiki/IBM_ThinkPad_X40" title="IBM ThinkPad X40">X40</a></li> <li><a href="/wiki/ThinkPad_X_series" title="ThinkPad X series">X41</a></li> <li><a href="/wiki/ThinkPad_X_series" title="ThinkPad X series">X60</a></li> <li><a href="/wiki/ThinkPad_X_series" title="ThinkPad X series">X60t</a></li> <li><a href="/wiki/ThinkPad_X_series" title="ThinkPad X series">X61t</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/ThinkPad_R_series" class="mw-redirect" title="ThinkPad R series">R series</a></th><td class="navbox-list-with-group navbox-list navbox-off" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ThinkPad_R_series" class="mw-redirect" title="ThinkPad R series">R30</a></li> <li><a href="/wiki/ThinkPad_R_series" class="mw-redirect" title="ThinkPad R series">R31</a></li> <li><a href="/wiki/ThinkPad_R_series" class="mw-redirect" title="ThinkPad R series">R32</a></li> <li><a href="/wiki/ThinkPad_R_series" class="mw-redirect" title="ThinkPad R series">R40</a></li> <li><a href="/wiki/ThinkPad_R_series" class="mw-redirect" title="ThinkPad R series">R50</a></li> <li><a href="/wiki/ThinkPad_R_series" class="mw-redirect" title="ThinkPad R series">R51</a></li> <li><a href="/wiki/ThinkPad_R_series" class="mw-redirect" title="ThinkPad R series">R52</a></li> <li><a href="/wiki/ThinkPad_R_series" class="mw-redirect" title="ThinkPad R series">R60</a></li> <li><a href="/wiki/ThinkPad_R_series" class="mw-redirect" title="ThinkPad R series">R61</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Others</th><td class="navbox-list-with-group navbox-list navbox-off" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IBM_ThinkPad_TransNote" title="IBM ThinkPad TransNote">TransNote</a></li></ul> </div></td></tr></tbody></table><div> </div></td></tr></tbody></table></div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Handheld</th><td class="navbox-list-with-group navbox-list navbox-off" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IBM_Palm_Top_PC_110" title="IBM Palm Top PC 110">Palm Top PC 110</a></li> <li><a href="/wiki/IBM_WorkPad" title="IBM WorkPad">WorkPad</a> <ul><li><a href="/wiki/IBM_WorkPad_Z50" title="IBM WorkPad Z50">Z50</a></li></ul></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Prototypes</th><td class="navbox-list-with-group navbox-list navbox-off" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IBM_Leapfrog" title="IBM Leapfrog">Leapfrog</a></li> <li><a href="/wiki/IBM_ThinkPad_Power_Series#Power_Series_600" title="IBM ThinkPad Power Series">Power Series 600</a></li> <li><a href="/wiki/IBM_ThinkPad_240#Transmeta_Crusoe" title="IBM ThinkPad 240">ThinkPad 240 with Transmeta Crusoe</a></li> <li><a href="/wiki/IBM_WatchPad" title="IBM WatchPad">WatchPad</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Video hardware</th><td class="navbox-list-with-group navbox-list navbox-off" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IBM_Monochrome_Display_Adapter" title="IBM Monochrome Display Adapter">Monochrome Display Adapter</a></li> <li><a href="/wiki/Color_Graphics_Adapter" title="Color Graphics Adapter">Color Graphics Adapter</a></li> <li><a href="/wiki/Enhanced_Graphics_Adapter" title="Enhanced Graphics Adapter">Enhanced Graphics Adapter</a></li> <li><a href="/wiki/Professional_Graphics_Controller" title="Professional Graphics Controller">Professional Graphics Controller</a></li> <li><a href="/wiki/Multi-Color_Graphics_Array" title="Multi-Color Graphics Array">Multi-Color Graphics Array</a></li> <li><a href="/wiki/Video_Graphics_Array" title="Video Graphics Array">Video Graphics Array</a></li> <li><a href="/wiki/IBM_8514" title="IBM 8514">IBM 8514</a></li> <li><a href="/wiki/Extended_Graphics_Array" title="Extended Graphics Array">Extended Graphics Array</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Related</th><td class="navbox-list-with-group navbox-list navbox-off" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IBM_5151" title="IBM 5151">IBM 5151</a></li> <li><a href="/wiki/IBM_BASIC" title="IBM BASIC">IBM BASIC</a></li> <li><a href="/wiki/IBM_PC%E2%80%93compatible" title="IBM PC–compatible">IBM PC–compatible</a></li> <li><a href="/wiki/Industry_Standard_Architecture" title="Industry Standard Architecture">Industry Standard Architecture</a></li> <li><a href="/wiki/IBM_IntelliStation" title="IBM IntelliStation">IntelliStation</a></li> <li><a href="/wiki/IBM_PC_keyboard" title="IBM PC keyboard">Keyboards</a> <ul><li><a href="/wiki/Model_F_keyboard" title="Model F keyboard">Model F</a></li> <li><a href="/wiki/Model_M_keyboard" title="Model M keyboard">Model M</a></li></ul></li> <li><a href="/wiki/Micro_Channel_architecture" title="Micro Channel architecture">Micro Channel</a></li> <li><a href="/wiki/IBM_Music_Feature_Card" title="IBM Music Feature Card">Music Feature Card</a></li> <li><a href="/wiki/Mwave" title="Mwave">Mwave</a></li> <li><a href="/wiki/IBM_4694" title="IBM 4694">SurePOS</a></li> <li><a href="/wiki/ThinkPad_UltraBay" title="ThinkPad UltraBay">UltraBay</a></li> <li><a href="/wiki/ThinkLight" title="ThinkLight">ThinkLight</a></li></ul> </div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=IBM_ThinkPad_T20_series&oldid=1229031238">https://en.wikipedia.org/w/index.php?title=IBM_ThinkPad_T20_series&oldid=1229031238</a>"</div></div> <div id="catlinks" class="catlinks" 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