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class="vector-toc-numb">2</span> <span>Applications</span> </div> </a> <button aria-controls="toc-Applications-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Applications subsection</span> </button> <ul id="toc-Applications-sublist" class="vector-toc-list"> <li id="toc-HP_Calculator_Applications" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#HP_Calculator_Applications"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>HP Calculator Applications</span> </div> </a> <ul id="toc-HP_Calculator_Applications-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-HP-IL_to_HP-IB_interfacing" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#HP-IL_to_HP-IB_interfacing"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>HP-IL to HP-IB interfacing</span> </div> </a> <ul id="toc-HP-IL_to_HP-IB_interfacing-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-Equipment_with_HP-IL_Interface" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Equipment_with_HP-IL_Interface"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>Equipment with HP-IL Interface</span> </div> </a> <button aria-controls="toc-Equipment_with_HP-IL_Interface-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle Equipment with HP-IL Interface subsection</span> </button> <ul id="toc-Equipment_with_HP-IL_Interface-sublist" class="vector-toc-list"> <li id="toc-Controllers" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Controllers"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> 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href="/wiki/HP-HIL" class="mw-redirect" title="HP-HIL">HP-HIL</a> or <a href="/wiki/HP-IB" class="mw-redirect" title="HP-IB">HP-IB</a>.</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 infobox-table"><caption class="infobox-title">HPIL (<a href="/wiki/Hewlett-Packard" title="Hewlett-Packard">Hewlett-Packard</a> Interface Loop)</caption><tbody><tr><td colspan="4" class="infobox-image"> <span typeof="mw:File"><a href="/wiki/File:HP-IL_connectors.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/HP-IL_connectors.jpg/300px-HP-IL_connectors.jpg" decoding="async" width="300" height="129" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/7/71/HP-IL_connectors.jpg/450px-HP-IL_connectors.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/7/71/HP-IL_connectors.jpg/600px-HP-IL_connectors.jpg 2x" data-file-width="689" data-file-height="297" /></a></span><div class="infobox-caption">HP-IL connectors (on an <a href="/wiki/HP-71B" title="HP-71B">HP-71B</a>)</div></td></tr><tr><th scope="row" class="infobox-label">Type</th><td colspan="3" class="infobox-data"> Peripheral data bus</td></tr><tr><th colspan="4" class="infobox-header" style="background:#ccccff">Production history</th></tr><tr><th scope="row" class="infobox-label">Designer</th><td colspan="3" class="infobox-data"> <a href="/wiki/Hewlett-Packard" title="Hewlett-Packard">Hewlett-Packard</a></td></tr><tr><th scope="row" class="infobox-label">Designed</th><td colspan="3" class="infobox-data"> 1980s</td></tr><tr><th scope="row" class="infobox-label">Manufacturer</th><td colspan="3" class="infobox-data"> <a href="/wiki/Hewlett-Packard" title="Hewlett-Packard">Hewlett-Packard</a></td></tr><tr><th scope="row" class="infobox-label">Superseded by</th><td colspan="3" class="infobox-data"> <a href="/wiki/USB" title="USB">USB</a> (mid-1990s)</td></tr><tr><th colspan="4" class="infobox-header" style="background:#ccccff">General specifications</th></tr><tr><th scope="row" class="infobox-label">External</th><td colspan="3" class="infobox-data"> yes</td></tr><tr><th scope="row" class="infobox-label">Pins</th><td colspan="3" class="infobox-data"> 2</td></tr><tr><th colspan="4" class="infobox-header" style="background:#ccccff">Data</th></tr><tr><th scope="row" class="infobox-label">Data signal</th><td colspan="3" class="infobox-data"> Token ring</td></tr><tr><th scope="row" class="infobox-label">Bitrate</th><td colspan="3" class="infobox-data"> 160 kbit/s <br /> (limited to 16 kbit/s) <a rel="nofollow" class="external autonumber" href="http://www.fortitudine.com/~coryc/html/hpil.html">[1]</a></td></tr><tr><th scope="row" class="infobox-label">Max. devices</th><td colspan="3" class="infobox-data"> 31 <br />(with extensions up to 960)</td></tr><tr><th scope="row" class="infobox-label">Protocol</th><td colspan="3" class="infobox-data"> Serial</td></tr></tbody></table> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:HP-41CX_connected_to_thermal_printer_and_digital_cassette_drive_via_HP-IL_interface_loop.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8e/HP-41CX_connected_to_thermal_printer_and_digital_cassette_drive_via_HP-IL_interface_loop.jpg/220px-HP-41CX_connected_to_thermal_printer_and_digital_cassette_drive_via_HP-IL_interface_loop.jpg" decoding="async" width="220" height="146" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8e/HP-41CX_connected_to_thermal_printer_and_digital_cassette_drive_via_HP-IL_interface_loop.jpg/330px-HP-41CX_connected_to_thermal_printer_and_digital_cassette_drive_via_HP-IL_interface_loop.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8e/HP-41CX_connected_to_thermal_printer_and_digital_cassette_drive_via_HP-IL_interface_loop.jpg/440px-HP-41CX_connected_to_thermal_printer_and_digital_cassette_drive_via_HP-IL_interface_loop.jpg 2x" data-file-width="2900" data-file-height="1929" /></a><figcaption>HP-41CX connected to thermal printer and digital cassette drive via HP-IL</figcaption></figure> <p>The <b>HP-IL</b> (<i><a href="/wiki/Hewlett-Packard" title="Hewlett-Packard">Hewlett-Packard</a> Interface Loop</i>) was a short-range interconnection bus or network introduced by <a href="/wiki/Hewlett-Packard" title="Hewlett-Packard">Hewlett-Packard</a> in the early 1980s.<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> It enabled many devices such as printers, plotters, displays, storage devices (floppy disk drives and tape drives), test equipment, etc. to be connected to programmable calculators such as the <a href="/wiki/HP-41C" title="HP-41C">HP-41C</a>, <a href="/wiki/HP-71B" title="HP-71B">HP-71B</a> and <a href="/wiki/HP-75" title="HP-75">HP-75C/D</a>, the <a href="/wiki/HP_Series_80" title="HP Series 80">Series 80</a> and <a href="/wiki/HP-110" class="mw-redirect" title="HP-110">HP-110</a> computers, as well as generic <a href="/wiki/ISA_bus" class="mw-redirect" title="ISA bus">ISA bus</a> based <a href="/wiki/Personal_Computer" class="mw-redirect" title="Personal Computer">PCs</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Principles">Principles</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=HP-IL&action=edit&section=1" title="Edit section: Principles"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>As its name implies, an HP-IL network formed a loop (i.e. it was a <a href="/wiki/Ring_network" title="Ring network">Ring network</a>): each device in the loop had a pair of two-wire connections, one designated <i>in</i>, which received messages from the previous device in the loop; and one designated <i>out</i>, which delivered messages to the next device in the loop. One device on the loop is designated the <i>controller</i>, and manages all other devices on the loop. HP-IL cables utilize a unique two-pin connector design with polarizing D-shaped shells, and can be connected together without further adapters to extend their length. </p><p>HP-IL uses a <a href="/wiki/Token_passing" title="Token passing">token passing</a> protocol for media access control: messages are passed from one device to the next until they return to the originator. When the loop is initialized, the controller sends an "Auto Address 1" message to the first device; that device (and each subsequent device) takes the number in the message it receives as its own address, and then forwards the message <i>with the address incremented</i> to the next device. When the "Auto Address <i>n</i>" message finally returns to the controller, it can tell how many devices are on the loop (<i>n</i>-1). Up to 31 devices can be addressed using this method. Once addresses are assigned, the controller can then assign "talker" or "listener" roles to any device on the loop. By addressing each device in turn, and using the "Send Accessory ID" message, the controller can determine the role and capability of each device on the loop. </p><p>When the controller assigns <i>listener</i> role to a device, that device accepts and processes data received from the loop. The role of <i>talker</i> allows a device to originate data on the loop. Multiple devices can be assigned the role of <i>listener</i> at once, but the role of <i>talker</i> can only be assigned to a single device at a time. Data transfer between loop devices is accomplished by the controller designating a talker and one or more listeners and then sourcing a "Send Data" message. </p><p>Most devices that were designed to be used as controllers were fixed in that role, but the <a href="/wiki/HP-71B" title="HP-71B">HP-71B</a> was capable of assuming either controller <i>or</i> device mode; and with the HP 82402 Dual HP-IL Adapter, the HP-71B could even be configured with multiple loops. </p> <div class="mw-heading mw-heading2"><h2 id="Applications">Applications</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=HP-IL&action=edit&section=2" title="Edit section: Applications"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Hewlett-Packard developed a range of devices to be connected to the HP-IL, mostly peripherals such as printers and storage devices for calculators. Through the 82169A HP-IL/HP-IB Interface, HP-IL controllers could be connected to instruments with an <a href="/wiki/HP-IB" class="mw-redirect" title="HP-IB">HP-IB</a> (aka GPIB or IEEE-488) interface, or vice versa. There were also plans to make test equipment with IL interfaces, but apart from the somewhat popular 3468A multimeter, only a few devices were introduced before HP-IL itself became obsolete. </p><p>In addition to the HP-IB interface, HP also sold <a href="/wiki/RS-232" title="RS-232">RS-232</a> and general-purpose parallel I/O interfaces as well as a prototype kit to create custom interfaces. </p> <div class="mw-heading mw-heading3"><h3 id="HP_Calculator_Applications">HP Calculator Applications</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=HP-IL&action=edit&section=3" title="Edit section: HP Calculator Applications"><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:Digital_cassette_drive_HP82161A_for_HP-41_calculator_series.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/e/e9/Digital_cassette_drive_HP82161A_for_HP-41_calculator_series.jpg/220px-Digital_cassette_drive_HP82161A_for_HP-41_calculator_series.jpg" decoding="async" width="220" height="146" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/e/e9/Digital_cassette_drive_HP82161A_for_HP-41_calculator_series.jpg/330px-Digital_cassette_drive_HP82161A_for_HP-41_calculator_series.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/e/e9/Digital_cassette_drive_HP82161A_for_HP-41_calculator_series.jpg/440px-Digital_cassette_drive_HP82161A_for_HP-41_calculator_series.jpg 2x" data-file-width="2730" data-file-height="1815" /></a><figcaption>HP 82161A digital cassette drive</figcaption></figure> <p>Several HP calculators were offered with HP-IL interfaces. In the <a href="/wiki/HP-75" title="HP-75">HP-75C/D</a> it was built in, in others such as the HP-71 and HP-41, plug in interface modules were available (such as the HP82160A for the HP-41). Popular uses for the HP-IL on the calculators included printing (using the HP 82162A thermal printer) and cassette file storage (through the HP 82161A digital cassette drive). For ease of use, the calculators supported automatic I/O address assignment ("AUTOIO"), where printer or mass storage commands are directed to the first available device of the appropriate type. Where multiple devices per type were present, a manual ("MANIO") assignment mode could be used. </p> <div class="mw-heading mw-heading3"><h3 id="HP-IL_to_HP-IB_interfacing">HP-IL to HP-IB interfacing</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=HP-IL&action=edit&section=4" title="Edit section: HP-IL to HP-IB interfacing"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Through the 82169A interface converter, even small calculators could be used to control a number of devices on a standard <a href="/wiki/HP-IB" class="mw-redirect" title="HP-IB">HP-IB</a> (GPIB, IEEE-488) bus, an interface in wide use for test and measurement equipment. The converter can operate in either of two modes, <i>Translator</i> or <i>Mailbox</i>. Translator mode is adequate for systems where only one controller is present (typically a calculator on HP-IL), while Mailbox mode applies when there are separate controllers present on both buses. </p><p>In Translator mode with an HP-IL controller, the default addressing mode is to connect the converter as the last device in the HP-IL loop, to set its own HP-IB address higher than the number of devices on the HP-IL loop, and to set the addresses of devices to be addressed on the HP-IB side must be higher than the converter's address.<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> Deviating from this scheme requires manual control of addressing. </p><p>In Mailbox mode, the controllers on either side can place a message into the converter's buffer memory, for the other side to retrieve from that memory. </p> <div class="mw-heading mw-heading2"><h2 id="Equipment_with_HP-IL_Interface">Equipment with HP-IL Interface</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=HP-IL&action=edit&section=5" title="Edit section: Equipment with HP-IL Interface"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Controllers">Controllers</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=HP-IL&action=edit&section=6" title="Edit section: Controllers"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>HP 82160A HP-IL <a href="/wiki/HP-41_extension_module" class="mw-redirect" title="HP-41 extension module">HP-41 extension module</a> (for the <a href="/wiki/HP-41C" title="HP-41C">HP-41C</a>)</li> <li>HP 82973A HP-IL interface for IBM PC and compatibles with <a href="/wiki/ISA_bus" class="mw-redirect" title="ISA bus">ISA bus</a></li> <li>HP 82938A Interface for <a href="/wiki/HP_Series_80" title="HP Series 80">Series 80</a> desktop computers/controllers</li> <li>HP 82401A HP-IL module for <a href="/wiki/HP-71B" title="HP-71B">HP-71B</a></li> <li><a href="/wiki/HP-75" title="HP-75">HP-75C/D</a></li> <li><a href="/wiki/HP_110" title="HP 110">HP 110</a> aka <a href="/wiki/HP_Portable" class="mw-redirect" title="HP Portable">HP Portable</a></li> <li><a href="/wiki/HP_110_Plus" class="mw-redirect" title="HP 110 Plus">HP 110 Plus</a> aka <a href="/wiki/HP_Portable_Plus" class="mw-redirect" title="HP Portable Plus">HP Portable Plus</a> (<a href="/wiki/HP_45711A" class="mw-redirect" title="HP 45711A">HP 45711A</a>)</li> <li>HP 45643A HP-IL/Parallel Interface for the HP-150</li> <li><a href="/wiki/HP_Integral_PC" title="HP Integral PC">HP Integral PC</a></li> <li><a href="/w/index.php?title=HP-3392A&action=edit&redlink=1" class="new" title="HP-3392A (page does not exist)">HP-3392A</a></li></ul> <div class="mw-heading mw-heading3"><h3 id="Interfaces">Interfaces</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=HP-IL&action=edit&section=7" title="Edit section: Interfaces"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>HP 82164A HP-IL/<a href="/wiki/RS-232" title="RS-232">RS-232</a>C Interface (serial port)</li> <li>HP 82165A HP-IL/<a href="/wiki/GPIO" class="mw-redirect" title="GPIO">GPIO</a> Interface (generic parallel port)</li> <li>HP 82166A HP-IL Converter (smaller version of GPIO interface intended for embedded use)</li> <li>HP 82166C HP-IL Converter Prototyping Kit</li> <li>HP 82169A HP-IL/<a href="/wiki/HPIB" class="mw-redirect" title="HPIB">HPIB</a> Interface (bidirectional)</li> <li>HP 5061-3166 HP-IL/<a href="/wiki/SCSI" title="SCSI">SCSI</a> Interface</li> <li>HP 82402 Dual HP-IL Adapter for the HP-71B</li></ul> <div class="mw-heading mw-heading3"><h3 id="Peripherals">Peripherals</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=HP-IL&action=edit&section=8" title="Edit section: Peripherals"><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:Hp-thinkjet-b_(cropped).jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/5/56/Hp-thinkjet-b_%28cropped%29.jpg/220px-Hp-thinkjet-b_%28cropped%29.jpg" decoding="async" width="220" height="117" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/56/Hp-thinkjet-b_%28cropped%29.jpg/330px-Hp-thinkjet-b_%28cropped%29.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/56/Hp-thinkjet-b_%28cropped%29.jpg/440px-Hp-thinkjet-b_%28cropped%29.jpg 2x" data-file-width="4700" data-file-height="2500" /></a><figcaption>HP ThinkJet</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Hp-thinkjet-b-rear.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/d4/Hp-thinkjet-b-rear.jpg/220px-Hp-thinkjet-b-rear.jpg" decoding="async" width="220" height="147" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/d4/Hp-thinkjet-b-rear.jpg/330px-Hp-thinkjet-b-rear.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/d4/Hp-thinkjet-b-rear.jpg/440px-Hp-thinkjet-b-rear.jpg 2x" data-file-width="6000" data-file-height="4000" /></a><figcaption>HP ThinkJet rear view with HP-IL interface</figcaption></figure> <figure class="mw-default-size" typeof="mw:File/Thumb"><a href="/wiki/File:Video_interface_HP82163B_for_HP-41_calculators_w._TV-UHF_and_AV_output.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/f/f6/Video_interface_HP82163B_for_HP-41_calculators_w._TV-UHF_and_AV_output.jpg/220px-Video_interface_HP82163B_for_HP-41_calculators_w._TV-UHF_and_AV_output.jpg" decoding="async" width="220" height="146" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/f/f6/Video_interface_HP82163B_for_HP-41_calculators_w._TV-UHF_and_AV_output.jpg/330px-Video_interface_HP82163B_for_HP-41_calculators_w._TV-UHF_and_AV_output.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/f/f6/Video_interface_HP82163B_for_HP-41_calculators_w._TV-UHF_and_AV_output.jpg/440px-Video_interface_HP82163B_for_HP-41_calculators_w._TV-UHF_and_AV_output.jpg 2x" data-file-width="2480" data-file-height="1649" /></a><figcaption>HP 82163B Video Interface</figcaption></figure> <ul><li>HP 9114A/B Disc Drives</li> <li>HP 82161A Tape Drive</li> <li>HP 82162A Thermal Printer (HP-IL version of HP 82143A printer for HP-41C)</li> <li>HP 82163A/B Video Interface</li> <li>HP 92198A 80-Column Video Interface (<a href="/wiki/Mountain_Computer" title="Mountain Computer">Mountain Computer</a>)</li> <li>HP 82168A, 92205M Acoustic Couplers (Modems)</li> <li>HP 82905A/B Printers</li> <li>HP 2225B <a href="/wiki/ThinkJet" class="mw-redirect" title="ThinkJet">ThinkJet</a> Printer</li> <li>HP 7470A Graphics Plotter (Opt. 003 HP-IL Interface)</li> <li>HP 2671A/G Alphanumeric Graphics Thermal Printer</li></ul> <div class="mw-heading mw-heading3"><h3 id="Test_instruments">Test instruments</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=HP-IL&action=edit&section=9" title="Edit section: Test instruments"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>HP 1630A/D/G and HP1631 <a href="/wiki/Logic_analyzer" title="Logic analyzer">Logic analyzers</a> (can be loop controller)</li> <li>HP 3421A Data Acquisition/Control Unit</li> <li>HP 3468A/B Digital <a href="/wiki/Multimeter" title="Multimeter">Multimeters</a> (HP-IL version of HP 3478A with GPIB)</li> <li>HP 5384A and HP 5385A frequency counters with option 003 (HP-IL)</li> <li>HP 8590A <a href="/wiki/Spectrum_analyzer" title="Spectrum analyzer">spectrum analyzer</a> with option 022 (HP-IL)</li> <li>HP 5890 <a href="/wiki/Gas_Chromatograph" class="mw-redirect" title="Gas Chromatograph">Gas Chromatograph</a> and companion Autosampler HP 7673 have an HP-IL interface option for instrument programming and data logging using the HP 19405A Sampler/Event Control Module (S/ECM) and the HP 3392A Gas Chromatograph Integrator as controller.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup></li> <li>HP 4945A Transmission Impairment Measuring Set (Opt 103)</li> <li>HP 5006A Signature Analyzer (Opt 030)</li></ul> <div class="mw-heading mw-heading3"><h3 id="Software">Software</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=HP-IL&action=edit&section=10" title="Edit section: Software"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>HP-IL Development Module (plug-in Application ROM module for HP-41C)</li> <li>HP 82183A Extended I/O Module</li></ul> <div class="mw-heading mw-heading3"><h3 id="Third-party">Third-party</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=HP-IL&action=edit&section=11" title="Edit section: Third-party"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>FSI164A HP-IL/RS-232C Interface by Firmware Specialists</li> <li>Leitz IL-41 <a href="/wiki/Theodolite" title="Theodolite">Theodolite</a> interface</li> <li>CMT RAM Disc 128-512k RAM Disc; Optional RS-232</li> <li>Ocean Scientific HP-IL A/D Interface</li> <li>Direct Connect Modem 300 Plus Modem & Bar Code Reader</li> <li>PAC Hardware GMBH (Germany) PAC-Screen 80-col/graphics video interface with parallel printer port and mouse port</li> <li>Interloop #111 HP-IL Repeater</li> <li>Interloop #130 HP-IL Twinax Terminator</li> <li>Interloop #200 HP-IL <a href="/wiki/Step_motor" class="mw-redirect" title="Step motor">Step Motor</a> Driver</li> <li>Interloop #210 HP-IL IO Interface</li> <li>Steinmetz & Brown SB10161A/2A Single/Dual <a href="/wiki/Floppy_disk" title="Floppy disk">5 1/4" Disc Drive</a></li> <li>Interface Instruments ADC71A Analog to Digital Converter</li></ul> <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=HP-IL&action=edit&section=12" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/IEEE-488" class="mw-redirect" title="IEEE-488">IEEE-488 (GPIB, HPIB)</a></li> <li><a href="/wiki/Commodore_bus" title="Commodore bus">Commodore bus</a>, another serialisation of IEEE-488</li> <li><a href="/wiki/Apple_Desktop_Bus" title="Apple Desktop Bus">Apple Desktop Bus</a></li> <li><a href="/wiki/Universal_Serial_Bus" class="mw-redirect" title="Universal Serial Bus">Universal Serial Bus</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=HP-IL&action=edit&section=13" 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"> <div class="mw-references-wrap"><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 id="CITEREFQuick,_R.D.,_Harper,_S.L.1983" class="citation journal cs1">Quick, R.D., Harper, S.L. (January 1983). <a rel="nofollow" class="external text" href="http://www.hparchive.com/Journals/HPJ-1983-01.pdf">"HP-IL: A Low-Cost Digital Interface for Portable Applications"</a> <span class="cs1-format">(PDF)</span>. <i>Hewlett-Packard Journal</i>. <b>34</b> (1): 3–10.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=article&rft.jtitle=Hewlett-Packard+Journal&rft.atitle=HP-IL%3A+A+Low-Cost+Digital+Interface+for+Portable+Applications&rft.volume=34&rft.issue=1&rft.pages=3-10&rft.date=1983-01&rft.au=Quick%2C+R.D.%2C+Harper%2C+S.L.&rft_id=http%3A%2F%2Fwww.hparchive.com%2FJournals%2FHPJ-1983-01.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHP-IL" class="Z3988"></span><span class="cs1-maint citation-comment"><code class="cs1-code">{{<a href="/wiki/Template:Cite_journal" title="Template:Cite journal">cite journal</a>}}</code>: CS1 maint: multiple names: authors list (<a href="/wiki/Category:CS1_maint:_multiple_names:_authors_list" title="Category:CS1 maint: multiple names: authors list">link</a>)</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 web cs1"><a rel="nofollow" class="external text" href="http://www.series80.org/PDFs/hp82169a.pdf">"HP82169A Manual"</a> <span class="cs1-format">(PDF)</span>. p. 17<span class="reference-accessdate">. Retrieved <span class="nowrap">2013-06-05</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=HP82169A+Manual&rft.pages=17&rft_id=http%3A%2F%2Fwww.series80.org%2FPDFs%2Fhp82169a.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHP-IL" class="Z3988"></span></span> </li> <li id="cite_note-3"><span class="mw-cite-backlink"><b><a href="#cite_ref-3">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://ipes.us/used/58901.pdf">"HP 5890 Series II Gas Chromatograph Service Manual"</a> <span class="cs1-format">(PDF)</span>. p. 10-8 to 10-13<span class="reference-accessdate">. Retrieved <span class="nowrap">2021-06-05</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=HP+5890+Series+II+Gas+Chromatograph+Service+Manual&rft.pages=10-8+to+10-13&rft_id=http%3A%2F%2Fipes.us%2Fused%2F58901.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHP-IL" class="Z3988"></span></span> </li> </ol></div></div> <style data-mw-deduplicate="TemplateStyles:r1239549316">.mw-parser-output .refbegin{margin-bottom:0.5em}.mw-parser-output .refbegin-hanging-indents>ul{margin-left:0}.mw-parser-output .refbegin-hanging-indents>ul>li{margin-left:0;padding-left:3.2em;text-indent:-3.2em}.mw-parser-output .refbegin-hanging-indents ul,.mw-parser-output .refbegin-hanging-indents ul li{list-style:none}@media(max-width:720px){.mw-parser-output .refbegin-hanging-indents>ul>li{padding-left:1.6em;text-indent:-1.6em}}.mw-parser-output .refbegin-columns{margin-top:0.3em}.mw-parser-output .refbegin-columns ul{margin-top:0}.mw-parser-output .refbegin-columns li{page-break-inside:avoid;break-inside:avoid-column}@media screen{.mw-parser-output .refbegin{font-size:90%}}</style><div class="refbegin" style=""> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFGerry_KaneSteve_HarperDavid_Ushijima1982" class="citation book cs1">Gerry Kane; Steve Harper; David Ushijima (1982). <a rel="nofollow" class="external text" href="https://literature.hpcalc.org/community/hpil-intro.pdf"><i>THE HP-IL SYSTEM: An Introductory Guide to the Hewlett-Packard Interface Loop</i></a> <span class="cs1-format">(PDF)</span>. Berkeley: Osborne/McGraw-Hill. p. 106. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-931988-77-2" title="Special:BookSources/0-931988-77-2"><bdi>0-931988-77-2</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=THE+HP-IL+SYSTEM%3A+An+Introductory+Guide+to+the+Hewlett-Packard+Interface+Loop&rft.place=Berkeley&rft.pages=106&rft.pub=Osborne%2FMcGraw-Hill&rft.date=1982&rft.isbn=0-931988-77-2&rft.au=Gerry+Kane&rft.au=Steve+Harper&rft.au=David+Ushijima&rft_id=https%3A%2F%2Fliterature.hpcalc.org%2Fcommunity%2Fhpil-intro.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHP-IL" class="Z3988"></span></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation book cs1"><a rel="nofollow" class="external text" href="https://literature.hpcalc.org/community/hp82166-is-en.pdf"><i>The HP-IL Interface Specification (HP P/N 82166-90017)</i></a> <span class="cs1-format">(PDF)</span>. Hewlett Packard. 1982. p. 200.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=The+HP-IL+Interface+Specification+%28HP+P%2FN+82166-90017%29&rft.pages=200&rft.pub=Hewlett+Packard&rft.date=1982&rft_id=https%3A%2F%2Fliterature.hpcalc.org%2Fcommunity%2Fhp82166-is-en.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHP-IL" class="Z3988"></span> <b>The official specification.</b></li> <li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation book cs1"><a rel="nofollow" class="external text" href="https://literature.hpcalc.org/community/hp82166-um-en.pdf"><i>The HP-IL Integrated Circuit (HP P/N 82166-90016 rev B)</i></a> <span class="cs1-format">(PDF)</span>. Hewlett Packard. 1982. p. 100.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=The+HP-IL+Integrated+Circuit+%28HP+P%2FN+82166-90016+rev+B%29&rft.pages=100&rft.pub=Hewlett+Packard&rft.date=1982&rft_id=https%3A%2F%2Fliterature.hpcalc.org%2Fcommunity%2Fhp82166-um-en.pdf&rfr_id=info%3Asid%2Fen.wikipedia.org%3AHP-IL" class="Z3988"></span> Describes 1LB3-0003 chip. (Later variants of this IC were the 1LR4-0002 and 1ML7-0005.)</li> <li>HP 82160A HP-IL Module Owner's Manual for the HP-41</li> <li>HP 82401A HP-IL Interface Owner's Manual for the HP-71</li></ul> </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=HP-IL&action=edit&section=14" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a rel="nofollow" class="external free" href="http://www.hpmuseum.org">http://www.hpmuseum.org</a></li> <li><a rel="nofollow" class="external free" href="http://www.hp41.org/HPIL.cfm">http://www.hp41.org/HPIL.cfm</a></li> <li><a rel="nofollow" class="external free" href="http://www.hp-collection.org/hpil.html">http://www.hp-collection.org/hpil.html</a></li> <li><a rel="nofollow" class="external free" href="http://www.jeffcalc.hp41.eu/hpil/">http://www.jeffcalc.hp41.eu/hpil/</a> A homebrew HP-IL to USB bridge.</li> <li><a rel="nofollow" class="external free" href="https://www.hhcworld.com/files/compendiums/hp_il_compendium.pdf">https://www.hhcworld.com/files/compendiums/hp_il_compendium.pdf</a> HP-IL Compendium, Sylvain Côté, September 20, 2018</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 dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output 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aria-labelledby="Technical_and_de_facto_standards_for_wired_computer_buses" 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:Computer_bus" title="Template:Computer bus"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Computer_bus" title="Template talk:Computer bus"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Computer_bus" title="Special:EditPage/Template:Computer bus"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Technical_and_de_facto_standards_for_wired_computer_buses" style="font-size:114%;margin:0 4em"><a href="/wiki/Technical_standard" title="Technical standard">Technical</a> and <a href="/wiki/De_facto_standard" title="De facto standard"><i>de facto</i> standards</a> for <a href="/wiki/Wired_communication" title="Wired communication">wired</a> <a href="/wiki/Bus_(computing)" title="Bus (computing)">computer buses</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">General</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/System_bus" title="System bus">System bus</a></li> <li><a href="/wiki/Front-side_bus" title="Front-side bus">Front-side bus</a></li> <li><a href="/wiki/Back-side_bus" title="Back-side bus">Back-side bus</a></li> <li><a href="/wiki/Daisy_chain_(electrical_engineering)" title="Daisy chain (electrical engineering)">Daisy chain</a></li> <li><a href="/wiki/Control_bus" title="Control bus">Control bus</a></li> <li><a href="/wiki/Address_bus" class="mw-redirect" title="Address bus">Address bus</a></li> <li><a href="/wiki/Bus_contention" title="Bus contention">Bus contention</a></li> <li><a href="/wiki/Bus_mastering" title="Bus mastering">Bus mastering</a></li> <li><a href="/wiki/Network_on_a_chip" title="Network on a chip">Network on a chip</a></li> <li><a href="/wiki/Plug_and_play" title="Plug and play">Plug and play</a></li> <li><a href="/wiki/List_of_interface_bit_rates#Computer_buses" title="List of interface bit rates">List of bus bandwidths</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Standards</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/SS-50_bus" title="SS-50 bus">SS-50 bus</a></li> <li><a href="/wiki/S-100_bus" title="S-100 bus">S-100 bus</a></li> <li><a href="/wiki/Multibus" title="Multibus">Multibus</a></li> <li><a href="/wiki/Unibus" title="Unibus">Unibus</a></li> <li><a href="/wiki/VAXBI_bus" title="VAXBI bus">VAXBI</a></li> <li><a href="/wiki/MBus_(SPARC)" title="MBus (SPARC)">MBus</a></li> <li><a href="/wiki/STD_Bus" title="STD Bus">STD Bus</a></li> <li><a href="/wiki/System_Management_Bus" title="System Management Bus">SMBus</a></li> <li><a href="/wiki/Q-Bus" title="Q-Bus">Q-Bus</a></li> <li><a href="/wiki/Europe_Card_Bus" title="Europe Card Bus">Europe Card Bus</a></li> <li><a href="/wiki/Industry_Standard_Architecture" title="Industry Standard Architecture">ISA</a></li> <li><a href="/wiki/STEbus" title="STEbus">STEbus</a></li> <li><a href="/wiki/Amiga_Zorro_II" title="Amiga Zorro II">Zorro II</a></li> <li><a href="/wiki/Amiga_Zorro_III" title="Amiga Zorro III">Zorro III</a></li> <li><a href="/wiki/Computer_Automated_Measurement_and_Control" title="Computer Automated Measurement and Control">CAMAC</a></li> <li><a href="/wiki/FASTBUS" title="FASTBUS">FASTBUS</a></li> <li><a href="/wiki/Low_Pin_Count" title="Low Pin Count">LPC</a></li> <li><a href="/wiki/HP_Precision_Bus" title="HP Precision Bus">HP Precision Bus</a></li> <li><a href="/wiki/Extended_Industry_Standard_Architecture" title="Extended Industry Standard Architecture">EISA</a></li> <li><a href="/wiki/VMEbus" title="VMEbus">VME</a></li> <li><a href="/wiki/VME_eXtensions_for_Instrumentation" title="VME eXtensions for Instrumentation">VXI</a></li> <li><a href="/wiki/VXS" title="VXS">VXS</a></li> <li><a href="/wiki/VPX" title="VPX">VPX</a></li> <li><a href="/wiki/NuBus" title="NuBus">NuBus</a></li> <li><a href="/wiki/TURBOchannel" title="TURBOchannel">TURBOchannel</a></li> <li><a href="/wiki/Micro_Channel_architecture" title="Micro Channel architecture">MCA</a></li> <li><a href="/wiki/SBus" title="SBus">SBus</a></li> <li><a href="/wiki/VESA_Local_Bus" title="VESA Local Bus">VLB</a></li> <li><a href="/wiki/GSC_bus" title="GSC bus">HP GSC bus</a></li> <li><a href="/wiki/InfiniBand" title="InfiniBand">InfiniBand</a></li> <li><a href="/wiki/Ethernet" title="Ethernet">Ethernet</a></li> <li><a href="/wiki/Ultra_Port_Architecture" title="Ultra Port Architecture">UPA</a></li> <li><a href="/wiki/Peripheral_Component_Interconnect" title="Peripheral Component Interconnect">PCI</a></li> <li><a href="/wiki/PCI-X" title="PCI-X">PCI Extended (PCI-X)</a></li> <li><a href="/wiki/PCI_eXtensions_for_Instrumentation" title="PCI eXtensions for Instrumentation">PXI</a></li> <li><a href="/wiki/PCI_Express" title="PCI Express">PCI Express (PCIe)</a></li> <li><a href="/wiki/Accelerated_Graphics_Port" title="Accelerated Graphics Port">AGP</a></li> <li><a href="/wiki/Compute_Express_Link" title="Compute Express Link">Compute Express Link (CXL)</a></li> <li><a href="/wiki/Direct_Media_Interface" title="Direct Media Interface">Direct Media Interface (DMI)</a></li> <li><a href="/wiki/RapidIO" title="RapidIO">RapidIO</a></li> <li><a href="/wiki/Intel_QuickPath_Interconnect" title="Intel QuickPath Interconnect">Intel QuickPath Interconnect</a></li> <li><a href="/wiki/NVLink" title="NVLink">NVLink</a></li> <li><a href="/wiki/HyperTransport" title="HyperTransport">HyperTransport</a> <ul><li><a href="/wiki/Infinity_Fabric" class="mw-redirect" title="Infinity Fabric">Infinity Fabric</a></li></ul></li> <li><a href="/wiki/Intel_Ultra_Path_Interconnect" title="Intel Ultra Path Interconnect">Intel Ultra Path Interconnect</a></li> <li><a href="/wiki/Coherent_Accelerator_Processor_Interface" title="Coherent Accelerator Processor Interface">Coherent Accelerator Processor Interface (CAPI)</a></li> <li><a href="/wiki/SpaceWire" title="SpaceWire">SpaceWire</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Storage</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/ST-506/ST-412" title="ST-506/ST-412">ST-506</a></li> <li><a href="/wiki/Enhanced_Small_Disk_Interface" title="Enhanced Small Disk Interface">ESDI</a></li> <li><a href="/wiki/Intelligent_Peripheral_Interface" title="Intelligent Peripheral Interface">IPI</a></li> <li><a href="/wiki/Storage_Module_Device" title="Storage Module Device">SMD</a></li> <li><a href="/wiki/Parallel_ATA" title="Parallel ATA">Parallel ATA (PATA)</a></li> <li><a href="/wiki/Bus_and_Tag" title="Bus and Tag">Bus and Tag</a></li> <li><a href="/wiki/Digital_Storage_Systems_Interconnect" title="Digital Storage Systems Interconnect">DSSI</a></li> <li><a href="/wiki/HIPPI" title="HIPPI">HIPPI</a></li> <li><a href="/wiki/SATA" title="SATA">Serial ATA (SATA)</a></li> <li><a href="/wiki/SCSI" title="SCSI">SCSI</a> <ul><li><a href="/wiki/Parallel_SCSI" title="Parallel SCSI">Parallel</a></li> <li><a href="/wiki/Serial_Attached_SCSI" title="Serial Attached SCSI">SAS</a></li></ul></li> <li><a href="/wiki/ESCON" title="ESCON">ESCON</a></li> <li><a href="/wiki/Fibre_Channel" title="Fibre Channel">Fibre Channel</a></li> <li><a href="/wiki/Serial_Storage_Architecture" title="Serial Storage Architecture">SSA</a></li> <li><a href="/wiki/SATA_Express" title="SATA Express">SATAe</a></li> <li>PCI Express (via <a href="/wiki/Advanced_Host_Controller_Interface" title="Advanced Host Controller Interface">AHCI</a> or <a href="/wiki/NVM_Express" title="NVM Express">NVMe</a> logical device interface)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Peripheral</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/Apple_Desktop_Bus" title="Apple Desktop Bus">Apple Desktop Bus</a></li> <li><a href="/wiki/Atari_SIO" title="Atari SIO">Atari SIO</a></li> <li><a href="/wiki/Digital_Control_Bus" title="Digital Control Bus">DCB</a></li> <li><a href="/wiki/Commodore_bus" title="Commodore bus">Commodore bus</a></li> <li><a class="mw-selflink selflink">HP-IL</a></li> <li><a href="/wiki/HIL_bus" title="HIL bus">HIL</a></li> <li><a href="/wiki/MIDI" title="MIDI">MIDI</a></li> <li><a href="/wiki/RS-232" title="RS-232">RS-232</a></li> <li><a href="/wiki/RS-422" title="RS-422">RS-422</a></li> <li><a href="/wiki/RS-423" title="RS-423">RS-423</a></li> <li><a href="/wiki/RS-485" title="RS-485">RS-485</a></li> <li><a href="/wiki/Lightning_(connector)" title="Lightning (connector)">Lightning</a></li> <li><a href="/wiki/DMX512#DMX512-A" title="DMX512">DMX512-A</a></li> <li><a href="/wiki/IEEE-488" class="mw-redirect" title="IEEE-488">IEEE-488 (GPIB)</a></li> <li><a href="/wiki/IEEE_1284" title="IEEE 1284">IEEE-1284 (parallel port)</a></li> <li><a href="/wiki/IEEE_1394" title="IEEE 1394">IEEE-1394 (FireWire)</a></li> <li><a href="/wiki/UNI/O" title="UNI/O">UNI/O</a></li> <li><a href="/wiki/1-Wire" title="1-Wire">1-Wire</a></li> <li><a href="/wiki/I%C2%B2C" title="I²C">I²C</a> (<a href="/wiki/ACCESS.bus" title="ACCESS.bus">ACCESS.bus</a>, <a href="/wiki/Power_Management_Bus" title="Power Management Bus">PMBus</a>, <a href="/wiki/System_Management_Bus" title="System Management Bus">SMBus</a>)</li> <li><a href="/wiki/I3C_(bus)" title="I3C (bus)">I3C</a></li> <li><a href="/wiki/Serial_Peripheral_Interface" title="Serial Peripheral Interface">SPI</a></li> <li><a href="/wiki/IEC_61030" title="IEC 61030">D²B</a></li> <li><a href="/wiki/Parallel_SCSI" title="Parallel SCSI">Parallel SCSI</a></li> <li><a href="/wiki/Profibus" title="Profibus">Profibus</a></li> <li><a href="/wiki/USB" title="USB">USB</a></li> <li><a href="/wiki/Camera_Link" title="Camera Link">Camera Link</a></li> <li><a href="/wiki/PCI_Express#PCI_Express_External_Cabling" title="PCI Express">External PCIe</a></li> <li><a href="/wiki/Thunderbolt_(interface)" title="Thunderbolt (interface)">Thunderbolt</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Audio</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/ADAT_Lightpipe" title="ADAT Lightpipe">ADAT Lightpipe</a></li> <li><a href="/wiki/AES3" title="AES3">AES3</a></li> <li><a href="/wiki/Intel_High_Definition_Audio" title="Intel High Definition Audio">Intel HD Audio</a></li> <li><a href="/wiki/I%C2%B2S" title="I²S">I²S</a></li> <li><a href="/wiki/MADI" title="MADI">MADI</a></li> <li><a href="/wiki/McASP" title="McASP">McASP</a></li> <li><a href="/wiki/S/PDIF" title="S/PDIF">S/PDIF</a></li> <li><a href="/wiki/TOSLINK" title="TOSLINK">TOSLINK</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Portable</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/PC_Card" title="PC Card">PC Card</a></li> <li><a href="/wiki/ExpressCard" title="ExpressCard">ExpressCard</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Embedded</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/Multidrop_bus" title="Multidrop bus">Multidrop bus</a></li> <li><a href="/wiki/CoreConnect" title="CoreConnect">CoreConnect</a></li> <li><a href="/wiki/Advanced_Microcontroller_Bus_Architecture" title="Advanced Microcontroller Bus Architecture">AMBA</a> (<a href="/wiki/Advanced_eXtensible_Interface" title="Advanced eXtensible Interface">AXI</a>)</li> <li><a href="/wiki/Wishbone_(computer_bus)" title="Wishbone (computer bus)">Wishbone</a></li> <li><a href="/wiki/SLIMbus" title="SLIMbus">SLIMbus</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div><small>Interfaces are listed by their speed in the (roughly) ascending order, so the interface at the end of each section should be the fastest.</small><br /><span class="noviewer" typeof="mw:File"><span title="Category"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/16px-Symbol_category_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/31px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <a href="/wiki/Category:Computer_buses" title="Category:Computer buses">Category</a></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 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