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class="vector-toc-link" href="#VAX-11/787"> <div class="vector-toc-text"> <span class="vector-toc-numb">1.4</span> <span>VAX-11/787</span> </div> </a> <ul id="toc-VAX-11/787-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-VAX-11/750" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#VAX-11/750"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>VAX-11/750</span> </div> </a> <button aria-controls="toc-VAX-11/750-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 VAX-11/750 subsection</span> </button> <ul id="toc-VAX-11/750-sublist" class="vector-toc-list"> <li id="toc-VAX-11/751" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#VAX-11/751"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>VAX-11/751</span> </div> </a> <ul id="toc-VAX-11/751-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-VAX-11/730" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#VAX-11/730"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>VAX-11/730</span> </div> </a> <button aria-controls="toc-VAX-11/730-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 VAX-11/730 subsection</span> </button> <ul id="toc-VAX-11/730-sublist" class="vector-toc-list"> <li id="toc-VAX-11/725" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#VAX-11/725"> <div class="vector-toc-text"> <span class="vector-toc-numb">3.1</span> <span>VAX-11/725</span> </div> </a> <ul id="toc-VAX-11/725-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-VAX-11/790_and_VAX-11/795" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#VAX-11/790_and_VAX-11/795"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>VAX-11/790 and VAX-11/795</span> </div> </a> <ul id="toc-VAX-11/790_and_VAX-11/795-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Remaining_machines" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Remaining_machines"> <div class="vector-toc-text"> <span class="vector-toc-numb">5</span> <span>Remaining machines</span> </div> </a> <ul id="toc-Remaining_machines-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">6</span> <span>References</span> </div> </a> <ul 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srcset="//upload.wikimedia.org/wikipedia/commons/thumb/9/9a/VAX_11-780_intero.jpg/330px-VAX_11-780_intero.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/9/9a/VAX_11-780_intero.jpg/440px-VAX_11-780_intero.jpg 2x" data-file-width="1298" data-file-height="1748" /></a><figcaption>A VAX-11/780</figcaption></figure> <p>The <b>VAX-11</b> is a discontinued family of <a href="/wiki/32-bit_computing" title="32-bit computing">32-bit</a> <a href="/wiki/Superminicomputer" title="Superminicomputer">superminicomputers</a>, running the <a href="/wiki/VAX" title="VAX">Virtual Address eXtension (VAX)</a> <a href="/wiki/Instruction_set_architecture" title="Instruction set architecture">instruction set architecture</a> (ISA), developed and manufactured by <a href="/wiki/Digital_Equipment_Corporation" title="Digital Equipment Corporation">Digital Equipment Corporation</a> (DEC). Development began in 1976. In addition to being powerful machines in their own right, they also offer the additional ability to run <a href="/wiki/User_mode" class="mw-redirect" title="User mode">user mode</a> <a href="/wiki/PDP-11" title="PDP-11">PDP-11</a> code (thus the -11 in VAX-11), offering an upward compatible path for existing customers. </p><p>The first machine in the series, the VAX-11/780, was announced in October 1977.<sup id="cite_ref-Ed_Thelen_1-0" class="reference"><a href="#cite_note-Ed_Thelen-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-old_computers_2-0" class="reference"><a href="#cite_note-old_computers-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> Its former competitors in the minicomputer space, like <a href="/wiki/Data_General" title="Data General">Data General</a> and <a href="/wiki/Hewlett-Packard" title="Hewlett-Packard">Hewlett-Packard</a>, were unable to successfully respond to the introduction and rapid update of the VAX design. DEC followed the VAX-11/780 with the lower-cost 11/750, and the even lower cost 11/730 and 11/725 models in 1982. More powerful models, initially known as the VAX-11/790 and VAX-11/795, were instead rebranded as the VAX 8600 series. </p><p>The VAX-11 line was discontinued in 1988, having been supplanted by the <a href="/wiki/MicroVAX" title="MicroVAX">MicroVAX</a> family on the low end, and the <a href="/wiki/VAX_8000" title="VAX 8000">VAX 8000</a> family on the high end.<sup id="cite_ref-Ed_Thelen_1-1" class="reference"><a href="#cite_note-Ed_Thelen-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-old_computers_2-1" class="reference"><a href="#cite_note-old_computers-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> The VAX-11/780 is historically one of the most successful and studied computers in history.<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> </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="VAX-11/780"><span id="VAX-11.2F780"></span>VAX-11/780</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=VAX-11&action=edit&section=1" title="Edit section: VAX-11/780"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <table class="infobox" style="font-size:88%;width:36em;"> <tbody><tr> <td style="text-align:center"><b>VAX-11 registers</b> </td></tr> <tr> <td> <table style="font-size:88%;"> <tbody><tr> <td style="width:10px; text-align:center;"><sup>3</sup><sub>1</sub> </td> <td style="width:50px; text-align:center;">... </td> <td style="width:10px; text-align:center;"><sup>2</sup><sub>3</sub> </td> <td style="width:50px; text-align:center;">... </td> <td style="width:10px; text-align:center;"><sup>1</sup><sub>5</sub> </td> <td style="width:50px; text-align:center;">... </td> <td style="width:10px; text-align:center;"><sup>0</sup><sub>7</sub> </td> <td style="width:10px; text-align:center;"><sup>0</sup><sub>6</sub> </td> <td style="width:10px; text-align:center;"><sup>0</sup><sub>5</sub> </td> <td style="width:10px; text-align:center;"><sup>0</sup><sub>4</sub> </td> <td style="width:10px; text-align:center;"><sup>0</sup><sub>3</sub> </td> <td style="width:10px; text-align:center;"><sup>0</sup><sub>2</sub> </td> <td style="width:10px; text-align:center;"><sup>0</sup><sub>1</sub> </td> <td style="width:10px; text-align:center;"><sup>0</sup><sub>0</sub> </td> <td style="width:auto;"><i>(bit position)</i> </td></tr> <tr> <td colspan="15"><b>General registers</b> <br /> </td></tr> <tr style="background:silver;color:black"> <td style="text-align:center;" colspan="14">R0 </td> <td style="width:auto; background:white; color:black;"><b>R</b>egister 0 </td></tr> <tr style="background:silver;color:black"> <td style="text-align:center;" colspan="14">R1 </td> <td style="width:auto; background:white; color:black;"><b>R</b>egister 1 </td></tr> <tr style="background:silver;color:black"> <td style="text-align:center;" colspan="14">R2 </td> <td style="width:auto; background:white; color:black;"><b>R</b>egister 2 </td></tr> <tr style="background:silver;color:black"> <td style="text-align:center;" colspan="14">R3 </td> <td style="width:auto; background:white; color:black;"><b>R</b>egister 3 </td></tr> <tr style="background:silver;color:black"> <td style="text-align:center;" colspan="14">R4 </td> <td style="width:auto; background:white; color:black;"><b>R</b>egister 4 </td></tr> <tr style="background:silver;color:black"> <td style="text-align:center;" colspan="14">R5 </td> <td style="width:auto; background:white; color:black;"><b>R</b>egister 5 </td></tr> <tr style="background:silver;color:black"> <td style="text-align:center;" colspan="14">R6 </td> <td style="width:auto; background:white; color:black;"><b>R</b>egister 6 </td></tr> <tr style="background:silver;color:black"> <td style="text-align:center;" colspan="14">R7 </td> <td style="width:auto; background:white; color:black;"><b>R</b>egister 7 </td></tr> <tr style="background:silver;color:black"> <td style="text-align:center;" colspan="14">R8 </td> <td style="width:auto; background:white; color:black;"><b>R</b>egister 8 </td></tr> <tr style="background:silver;color:black"> <td style="text-align:center;" colspan="14">R9 </td> <td style="width:auto; background:white; color:black;"><b>R</b>egister 9 </td></tr> <tr style="background:silver;color:black"> <td style="text-align:center;" colspan="14">R10 </td> <td style="width:auto; background:white; color:black;"><b>R</b>egister 10 </td></tr> <tr style="background:silver;color:black"> <td style="text-align:center;" colspan="14">R11 </td> <td style="width:auto; background:white; color:black;"><b>R</b>egister 11 </td></tr> <tr> <td colspan="15"><b>Index registers</b> <br /> </td></tr> <tr style="background:silver;color:black"> <td style="text-align:center;" colspan="14">R12 / AP </td> <td style="width:auto; background:white; color:black;"><b>R</b>egister 12 / <b>A</b>rgument <b>P</b>ointer </td></tr> <tr style="background:silver;color:black"> <td style="text-align:center;" colspan="14">R13 / FP </td> <td style="width:auto; background:white; color:black;"><b>R</b>egister 13 / <b>F</b>rame <b>P</b>ointer </td></tr> <tr style="background:silver;color:black"> <td style="text-align:center;" colspan="14">R14 / SP </td> <td style="width:auto; background:white; color:black;"><b>R</b>egister 14 / <b>S</b>tack <b>P</b>ointer </td></tr> <tr> <td colspan="15"><b>Program counter</b> <br /> </td></tr> <tr style="background:silver;color:black"> <td style="text-align:center;" colspan="14">R15 / PC </td> <td style="background:white; color:black;"><b>R</b>egister 15 / <b>P</b>rogram <b>C</b>ounter </td></tr> <tr> <td colspan="15"><b>Status flags</b> </td></tr> <tr style="background:silver;color:black"> <td style="text-align:center; background:white" colspan="7">  </td> <td style="text-align:center;" colspan="3"><a href="/wiki/Interrupt_priority_level" title="Interrupt priority level">I</a> </td> <td style="text-align:center;"><a href="/wiki/Overflow_flag" title="Overflow flag">V</a> </td> <td style="text-align:center;"><a href="/wiki/Sign_flag" class="mw-redirect" title="Sign flag">N</a> </td> <td style="text-align:center;"><a href="/wiki/Zero_flag" title="Zero flag">Z</a> </td> <td style="text-align:center;"><a href="/wiki/Carry_flag" title="Carry flag">C</a> </td> <td style="background:white; color:black"><b>P</b>rocessor <b>S</b>tatus <b>W</b>ord </td></tr> <tr style="background:silver;color:black"> <td style="text-align:center; background:white" colspan="7">  </td> <td style="text-align:center;" colspan="7">  </td> <td style="background:white; color:black"><b>F</b>loating <b>P</b>oint <b>S</b>tatus <b>R</b>egister </td></tr></tbody></table> </td></tr></tbody></table> <p>The <b>VAX-11/780</b>, code-named "Star", was introduced on 25 October 1977 at DEC's Annual Meeting of Shareholders.<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> It is the first computer to implement the VAX architecture. The KA780 <a href="/wiki/Central_processing_unit" title="Central processing unit">central processing unit</a> (CPU) is built from <a href="/wiki/Schottky_transistor" title="Schottky transistor">Schottky</a> <a href="/wiki/Transistor-transistor_logic" class="mw-redirect" title="Transistor-transistor logic">transistor-transistor logic</a> (TTL) devices and has a 200 ns cycle time (5 MHz) and a 2 KB cache. Memory and I/O are accessed via the <a href="/wiki/Synchronous_Backplane_Interconnect" title="Synchronous Backplane Interconnect">Synchronous Backplane Interconnect</a> (SBI). </p><p>The CPU is microprogrammed. The microcode is loaded at boot time from an 8" floppy disk controlled by a front end processor, a <a href="/wiki/PDP-11/03" class="mw-redirect" title="PDP-11/03">PDP-11/03</a>, which is used to run local and remote diagnostics.<sup class="noprint Inline-Template Template-Fact" style="white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Citation_needed" title="Wikipedia:Citation needed"><span title="This claim needs references to reliable sources. (August 2023)">citation needed</span></a></i>]</sup> </p><p>The VAX-11/780 originally supported up to 8MB of memory through one or two MS780-C memory controllers, with each controller supporting between 128KB-4MB of memory. The later MS780-E memory controller supports 4MB-64MB of memory, allowing the VAX-11/780 to support up to a total of 128MB of memory.<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> The KA780 has a 29-bit physical address space, allowing it to address a theoretical maximum of 512MB of memory. The memory is constructed from 4 or 16 kbit <a href="/wiki/Metal_oxide_semiconductor" class="mw-redirect" title="Metal oxide semiconductor">metal oxide semiconductor</a> (MOS) RAM chips mounted on memory array cards. Each memory controller controls up to 16 array cards. The memory is protected by <a href="/wiki/Error_correcting_code" class="mw-redirect" title="Error correcting code">error correcting code</a> (ECC).<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p><p>The VAX-11/780 uses the <a href="/wiki/Unibus" title="Unibus">Unibus</a> and <a href="/wiki/Massbus" title="Massbus">Massbus</a> for I/O. Unibus is used for attaching lower-speed peripherals such as terminals and printers and Massbus for higher-speed disk and tape drives. After the introduction of the RA series drives in December 1982 the Unibus was also used for high-speed peripherals. Both buses are provided by adapters that interface the bus to the SBI. All systems come with one Unibus as standard, with up to four supported. Massbus is optional, with up to four supported.<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> The VAX-11/780 also supports Computer Interconnect (CI), a proprietary network to attach disk drives and potentially share them with other VAX computers. This feature can connect VAX computers in a <a href="/wiki/VMScluster" title="VMScluster">VMScluster</a>. </p><p>Digital used the performance of the VAX-11/780 as a reference point for describing the performance of subsequent VAX models. The performance of the VAX-11/780 became known as 1 <a href="/wiki/VAX_Unit_of_Performance" title="VAX Unit of Performance">VAX Unit of Performance</a> (or 1.0 VUPs).<sup id="cite_ref-vups_8-0" class="reference"><a href="#cite_note-vups-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> Other VAX models are rated as a multiple of the VAX-11/780's performance, for example, a 2.0 VUPs VAX is twice as fast as the VAX-11/780. </p> <div class="mw-heading mw-heading3"><h3 id="VAX-11/782"><span id="VAX-11.2F782"></span>VAX-11/782</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=VAX-11&action=edit&section=2" title="Edit section: VAX-11/782"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The <b>VAX-11/782</b>, code-named "Atlas",<sup id="cite_ref-netbsd_9-0" class="reference"><a href="#cite_note-netbsd-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> is a dual-processor VAX-11/780 introduced in 1982. Both processors share the same MA780 multiport memory bus and the system operates asymmetrically, with the primary CPU performing all I/O operations and process scheduling with the second, attached processor only used for additional computationally-intensive work. For multistream computation-intensive tasks the system delivers up to 1.8 times the performance of a VAX 11/780.<sup id="cite_ref-10" class="reference"><a href="#cite_note-10"><span class="cite-bracket">[</span>10<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-vups_8-1" class="reference"><a href="#cite_note-vups-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p><p>This model is essentially a copy of the "dual VAX-11/780" computers hand built by wire-wrapping the backplanes of two VAX-11/780 CPUs by then graduate student <a href="/wiki/George_H._Goble" title="George H. Goble">George H. Goble</a> and undergraduate assistants at Purdue University as part of his work on his master's degree thesis on modifications of the <a href="/wiki/Unix" title="Unix">Unix</a> kernel for multi-cpu architecture.<sup id="cite_ref-11" class="reference"><a href="#cite_note-11"><span class="cite-bracket">[</span>11<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="VAX-11/784"><span id="VAX-11.2F784"></span>VAX-11/784</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=VAX-11&action=edit&section=3" title="Edit section: VAX-11/784"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The <b>VAX-11/784</b>, code-named "VAXimus",<sup id="cite_ref-netbsd_9-1" class="reference"><a href="#cite_note-netbsd-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> is a rare quad-processor variant of the VAX-11/780. Similar to the VAX-11/782, it is an <a href="/wiki/Asymmetric_multiprocessing" title="Asymmetric multiprocessing">asymmetric multiprocessing</a> system, with all four KA780 processors sharing the same MA780 multiport memory bus. Its performance is rated as 3.5 VUPs.<sup id="cite_ref-vups_8-2" class="reference"><a href="#cite_note-vups-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Avie_Tevanian" title="Avie Tevanian">Avie Tevanian</a>, a founder of the <a href="/wiki/Mach_(kernel)" title="Mach (kernel)">Mach</a> project, has claimed in an interview that he used a VAX-11/784 to run early versions of the Mach kernel.<sup id="cite_ref-12" class="reference"><a href="#cite_note-12"><span class="cite-bracket">[</span>12<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="VAX-11/785"><span id="VAX-11.2F785"></span>VAX-11/785</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=VAX-11&action=edit&section=4" title="Edit section: VAX-11/785"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The <b>VAX-11/785</b>, code-named "Superstar", was introduced in April 1984.<sup id="cite_ref-13" class="reference"><a href="#cite_note-13"><span class="cite-bracket">[</span>13<span class="cite-bracket">]</span></a></sup> Its KA785 CPU is essentially a faster KA780, with a CPU cycle time of 133 ns (7.52 MHz) versus the 200 ns (5 MHz) CPU cycle time of the KA780,<sup id="cite_ref-14" class="reference"><a href="#cite_note-14"><span class="cite-bracket">[</span>14<span class="cite-bracket">]</span></a></sup> giving a performance of 1.5 VUPs.<sup id="cite_ref-vups_8-3" class="reference"><a href="#cite_note-vups-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-15" class="reference"><a href="#cite_note-15"><span class="cite-bracket">[</span>15<span class="cite-bracket">]</span></a></sup> The decrease in CPU cycle time is accomplished through use of <a href="/wiki/Logic_family#Transistor–transistor_logic_(TTL)" title="Logic family">Fairchild Advanced Schottky TTL</a> (FAST) logic.<sup id="cite_ref-vax-hardware-1986_16-0" class="reference"><a href="#cite_note-vax-hardware-1986-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="VAX-11/787"><span id="VAX-11.2F787"></span>VAX-11/787</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=VAX-11&action=edit&section=5" title="Edit section: VAX-11/787"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The <b>VAX-11/787</b> is a possible dual-processor variant of the VAX-11/785. It is unclear whether any were produced.<sup id="cite_ref-netbsd_9-2" class="reference"><a href="#cite_note-netbsd-9"><span class="cite-bracket">[</span>9<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="VAX-11/750"><span id="VAX-11.2F750"></span>VAX-11/750</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=VAX-11&action=edit&section=6" title="Edit section: VAX-11/750"><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:VAX-11-750.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/VAX-11-750.jpg/220px-VAX-11-750.jpg" decoding="async" width="220" height="193" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/8a/VAX-11-750.jpg/330px-VAX-11-750.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/8a/VAX-11-750.jpg/440px-VAX-11-750.jpg 2x" data-file-width="2174" data-file-height="1910" /></a><figcaption>VAX-11/750</figcaption></figure> <p>The VAX-11/750, code-named "Comet", is a more compact, lower-performance <a href="/wiki/Bipolar_junction_transistor" title="Bipolar junction transistor">bipolar</a> <a href="/wiki/Gate_array" title="Gate array">gate array</a>–based implementation of the VAX architecture introduced in October 1980.<sup id="cite_ref-17" class="reference"><a href="#cite_note-17"><span class="cite-bracket">[</span>17<span class="cite-bracket">]</span></a></sup> The use of gate arrays decreases power consumption, and increases reliability compared with the VAX-11/780.<sup id="cite_ref-18" class="reference"><a href="#cite_note-18"><span class="cite-bracket">[</span>18<span class="cite-bracket">]</span></a></sup> The KA750 CPU has a 320 ns cycle time (3.125 MHz), and a VUPs rating of 0.6.<sup id="cite_ref-vups_8-4" class="reference"><a href="#cite_note-vups-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> The system can support up to 2MB of memory with an L0011 memory controller, up to 8MB with an L0016 memory controller, or up to 14MB with an L0022 memory controller.<sup id="cite_ref-vax-hardware-1986_16-1" class="reference"><a href="#cite_note-vax-hardware-1986-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-19" class="reference"><a href="#cite_note-19"><span class="cite-bracket">[</span>19<span class="cite-bracket">]</span></a></sup> </p><p>While the 11/780 boots from a 8” floppy via its console processor, the VAX 11/750 is equipped with a <a href="/wiki/TU58" class="mw-redirect" title="TU58">TU58</a> (DECtape II) cassette drive for first level booting and diagnostics. </p> <div class="mw-heading mw-heading3"><h3 id="VAX-11/751"><span id="VAX-11.2F751"></span>VAX-11/751</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=VAX-11&action=edit&section=7" title="Edit section: VAX-11/751"><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:VAX-UniK-2.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/6/62/VAX-UniK-2.jpg/220px-VAX-UniK-2.jpg" decoding="async" width="220" height="291" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/6/62/VAX-UniK-2.jpg/330px-VAX-UniK-2.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/6/62/VAX-UniK-2.jpg/440px-VAX-UniK-2.jpg 2x" data-file-width="872" data-file-height="1152" /></a><figcaption>VAX-11/751</figcaption></figure> <p>A ruggedized rack-mount VAX-11/750.<sup id="cite_ref-20" class="reference"><a href="#cite_note-20"><span class="cite-bracket">[</span>20<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="VAX-11/730"><span id="VAX-11.2F730"></span>VAX-11/730</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=VAX-11&action=edit&section=8" title="Edit section: VAX-11/730"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Introduced in April 1982, the VAX-11/730, code-named "Nebula", is a still-more-compact, still-lower-performance <a href="/wiki/Bit_slice" class="mw-redirect" title="Bit slice">bit slice</a> implementation of the VAX architecture using <a href="/wiki/AMD_Am2900" title="AMD Am2900">AMD Am2900</a> chips for the CPU. The KA730 CPU has a 270 ns cycle time (3.70 MHz), and a VUPs rating of 0.3.<sup id="cite_ref-vups_8-5" class="reference"><a href="#cite_note-vups-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> It supports up to 5MB of memory.<sup id="cite_ref-21" class="reference"><a href="#cite_note-21"><span class="cite-bracket">[</span>21<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading3"><h3 id="VAX-11/725"><span id="VAX-11.2F725"></span>VAX-11/725</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=VAX-11&action=edit&section=9" title="Edit section: VAX-11/725"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Code-named "LCN" ("Low-Cost Nebula"), it is a cost-reduced model of the VAX-11/730. It uses the same KA730 CPU as the VAX-11/730, but is housed in a more compact enclosure designed to reduce noise and heat ("55 dB" and "575 W (max.)"), making it more suitable for use in an office environment.<sup id="cite_ref-vax-hardware-1986_16-2" class="reference"><a href="#cite_note-vax-hardware-1986-16"><span class="cite-bracket">[</span>16<span class="cite-bracket">]</span></a></sup> It supports up to 3MB of memory. </p> <div class="mw-heading mw-heading2"><h2 id="VAX-11/790_and_VAX-11/795"><span id="VAX-11.2F790_and_VAX-11.2F795"></span>VAX-11/790 and VAX-11/795</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=VAX-11&action=edit&section=10" title="Edit section: VAX-11/790 and VAX-11/795"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The VAX-11/790 and VAX-11/795 are the original names for the <a href="/wiki/VAX_8000#VAX_8600" title="VAX 8000">VAX 8600 and VAX 8650</a> respectively.<sup id="cite_ref-22" class="reference"><a href="#cite_note-22"><span class="cite-bracket">[</span>22<span class="cite-bracket">]</span></a></sup> </p> <div class="mw-heading mw-heading2"><h2 id="Remaining_machines">Remaining machines</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=VAX-11&action=edit&section=11" title="Edit section: Remaining machines"><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:VAX_11_780_CPU_Backplane.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/8/89/VAX_11_780_CPU_Backplane.jpg/220px-VAX_11_780_CPU_Backplane.jpg" decoding="async" width="220" height="293" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/8/89/VAX_11_780_CPU_Backplane.jpg/330px-VAX_11_780_CPU_Backplane.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/8/89/VAX_11_780_CPU_Backplane.jpg/440px-VAX_11_780_CPU_Backplane.jpg 2x" data-file-width="3024" data-file-height="4032" /></a><figcaption>A VAX-11/780 CPU backplane</figcaption></figure> <ul><li>The <a href="/wiki/Living_Computer_Museum" class="mw-redirect" title="Living Computer Museum">Living Computer Museum</a> of Seattle, Washington maintains a VAX-11/780-5 (field-upgraded VAX-11/780) running <a href="/wiki/OpenVMS" title="OpenVMS">OpenVMS</a> 7.3. The museum has now closed permanently.</li> <li>The <a href="/wiki/Computer_History_Museum" title="Computer History Museum">Computer History Museum</a> of Mountain View, California has three VAX-11/780 systems, one VAX-11/725, one VAX-11/730, and one VAX-11/750 within its permanent collection.<sup id="cite_ref-23" class="reference"><a href="#cite_note-23"><span class="cite-bracket">[</span>23<span class="cite-bracket">]</span></a></sup></li> <li>The RECHENWERK Computer & Technikmuseum Halle in Halle, Germany holds a VAX-11/730 and a very rare East German clone of a VAX-11/780 named <a href="/wiki/Robotron_K_1840" title="Robotron K 1840">Robotron K 1840</a> in its permanent exhibition.</li> <li>The <a rel="nofollow" class="external text" href="http://verdebinario.org/">Verde Binario</a> retrocomputing association has a VAX-11/780 to which they dedicated a calendar.<sup id="cite_ref-24" class="reference"><a href="#cite_note-24"><span class="cite-bracket">[</span>24<span class="cite-bracket">]</span></a></sup></li> <li>The <a rel="nofollow" class="external text" href="https://www.lssmuseum.org/">Large Scale Systems Museum</a> in New Kensington, Pennsylvania has VAX-11/785, VAX-11/780, VAX-11/750, and VAX-11/730 systems.<sup id="cite_ref-25" class="reference"><a href="#cite_note-25"><span class="cite-bracket">[</span>25<span class="cite-bracket">]</span></a></sup></li> <li>The <a href="/wiki/Indiana_University_School_of_Informatics" class="mw-redirect" title="Indiana University School of Informatics">Luddy School of Informatics, Computing, and Engineering</a> at IU Bloomington in Indiana has on display a VAX-11/780, as well as various other computers from the time.</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=VAX-11&action=edit&section=12" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1235681985">.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid #aaa;font-size:88%;line-height:1.25em;background-color:var(--background-color-interactive-subtle,#f8f9fa);display:flow-root}.mw-parser-output .side-box-abovebelow,.mw-parser-output .side-box-text{padding:0.25em 0.9em}.mw-parser-output .side-box-image{padding:2px 0 2px 0.9em;text-align:center}.mw-parser-output .side-box-imageright{padding:2px 0.9em 2px 0;text-align:center}@media(min-width:500px){.mw-parser-output .side-box-flex{display:flex;align-items:center}.mw-parser-output .side-box-text{flex:1;min-width:0}}@media(min-width:720px){.mw-parser-output .side-box{width:238px}.mw-parser-output .side-box-right{clear:right;float:right;margin-left:1em}.mw-parser-output .side-box-left{margin-right:1em}}</style><style data-mw-deduplicate="TemplateStyles:r1237033735">@media print{body.ns-0 .mw-parser-output .sistersitebox{display:none!important}}@media screen{html.skin-theme-clientpref-night .mw-parser-output .sistersitebox img[src*="Wiktionary-logo-en-v2.svg"]{background-color:white}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .sistersitebox img[src*="Wiktionary-logo-en-v2.svg"]{background-color:white}}</style><div class="side-box side-box-right plainlinks sistersitebox"><style data-mw-deduplicate="TemplateStyles:r1126788409">.mw-parser-output .plainlist ol,.mw-parser-output .plainlist ul{line-height:inherit;list-style:none;margin:0;padding:0}.mw-parser-output .plainlist ol li,.mw-parser-output .plainlist ul li{margin-bottom:0}</style> <div class="side-box-flex"> <div class="side-box-image"><span class="noviewer" typeof="mw:File"><a href="/wiki/File:Wikiversity_logo_2017.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/0/0b/Wikiversity_logo_2017.svg/40px-Wikiversity_logo_2017.svg.png" decoding="async" width="40" height="33" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/0/0b/Wikiversity_logo_2017.svg/60px-Wikiversity_logo_2017.svg.png 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/0/0b/Wikiversity_logo_2017.svg/80px-Wikiversity_logo_2017.svg.png 2x" data-file-width="626" data-file-height="512" /></a></span></div> <div class="side-box-text plainlist">Wikiversity has learning resources about <i><b><a href="https://en.wikiversity.org/wiki/DEC_VAX-11/750_(computer)" class="extiw" title="v:DEC VAX-11/750 (computer)">DEC VAX-11/750 (computer)</a></b></i></div></div> </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 mw-references-columns"><ol class="references"> <li id="cite_note-Ed_Thelen-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-Ed_Thelen_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Ed_Thelen_1-1"><sup><i><b>b</b></i></sup></a></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="CITEREFEd_Thelen2005" class="citation web cs1">Ed Thelen (August 2005). <a rel="nofollow" class="external text" href="http://ed-thelen.org/comp-hist/VAX-11-750.html">"VAX-11/780 11/750"</a>. <i>ed-thelen.org</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2021-01-03</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=ed-thelen.org&rft.atitle=VAX-11%2F780+11%2F750&rft.date=2005-08&rft.au=Ed+Thelen&rft_id=http%3A%2F%2Fed-thelen.org%2Fcomp-hist%2FVAX-11-750.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AVAX-11" class="Z3988"></span></span> </li> <li id="cite_note-old_computers-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-old_computers_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-old_computers_2-1"><sup><i><b>b</b></i></sup></a></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="https://www.old-computers.com/history/detail.asp?n=20&t=3">"VAX 11/780, THE FIRST VAX SYSTEM"</a>. <i>old-computers.com</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2021-01-03</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=old-computers.com&rft.atitle=VAX+11%2F780%2C+THE+FIRST+VAX+SYSTEM&rft_id=https%3A%2F%2Fwww.old-computers.com%2Fhistory%2Fdetail.asp%3Fn%3D20%26t%3D3&rfr_id=info%3Asid%2Fen.wikipedia.org%3AVAX-11" 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 id="CITEREFHennessyPatterson2002" class="citation book cs1">Hennessy, John; Patterson, David (May 29, 2002). <a rel="nofollow" class="external text" href="https://books.google.com/books?id=XX69oNsazH4C&pg=PA151"><i>Computer Architecture: A Quantitative Approach</i></a>. Elsevier. p. 151. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/9780080502526" title="Special:BookSources/9780080502526"><bdi>9780080502526</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Computer+Architecture%3A+A+Quantitative+Approach&rft.pages=151&rft.pub=Elsevier&rft.date=2002-05-29&rft.isbn=9780080502526&rft.aulast=Hennessy&rft.aufirst=John&rft.au=Patterson%2C+David&rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3DXX69oNsazH4C%26pg%3DPA151&rfr_id=info%3Asid%2Fen.wikipedia.org%3AVAX-11" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text">Digital Equipment Corporation. <i>VAX OpenVMS at 20</i>.</span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222" /><cite id="CITEREFBob_Supnik2008" class="citation web cs1">Bob Supnik (2008-12-01). <a rel="nofollow" class="external text" href="http://simh.trailing-edge.com/pdf/vax780_doc.pdf">"VAX-11/780 Simulator Usage"</a> <span class="cs1-format">(PDF)</span>. <i>simh.trailing-edge.com</i><span class="reference-accessdate">. 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title="PDP-5">PDP-5</a></li> <li><a href="/wiki/PDP-8" title="PDP-8">PDP-8</a> <ul><li><a href="/wiki/PDP-8/e" title="PDP-8/e">PDP-8/e</a></li></ul></li> <li><a href="/wiki/PDP-12" title="PDP-12">PDP-12</a></li> <li><a href="/wiki/DECmate" title="DECmate">DECmate</a></li> <li><a href="/wiki/PDP-14" title="PDP-14">PDP-14</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/36-bit_computing" title="36-bit computing">36-bit</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/PDP-6" title="PDP-6">PDP-6</a></li> <li><a href="/wiki/PDP-10" title="PDP-10">PDP-10</a></li> <li><a href="/wiki/DECSYSTEM-20" title="DECSYSTEM-20">DECSYSTEM-20</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/16-bit_computing" title="16-bit computing">16-bit</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/PDP-11" title="PDP-11">PDP-11</a></li> <li><a href="/wiki/DEC_Professional" title="DEC Professional">DEC Professional</a></li></ul> </div></td></tr></tbody></table><div> </div></td></tr></tbody></table></div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/VAX" title="VAX">VAX</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a class="mw-selflink selflink">VAX-11</a></li> <li><a href="/wiki/MicroVAX" title="MicroVAX">MicroVAX</a></li> <li><a href="/wiki/VAX_8000" title="VAX 8000">VAX 8000</a></li> <li><a href="/wiki/VAXstation" title="VAXstation">VAXstation</a></li> <li><a href="/wiki/DEC_Firefly" title="DEC Firefly">Firefly</a></li> <li><a href="/wiki/VAXserver" title="VAXserver">VAXserver</a></li> <li><a href="/wiki/VAX_6000" title="VAX 6000">VAX 6000</a></li> <li><a href="/wiki/VAX_4000" title="VAX 4000">VAX 4000</a></li> <li><a href="/wiki/VAX_9000" title="VAX 9000">VAX 9000</a></li> <li><a href="/wiki/VAXft" title="VAXft">VAXft</a></li> <li><a href="/wiki/VAX_7000_and_VAX_10000" title="VAX 7000 and VAX 10000">VAX 7000 and VAX 10000</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/X86" title="X86">x86</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Rainbow_100" title="Rainbow 100">Rainbow 100</a></li> <li><a href="/wiki/VAXmate" title="VAXmate">VAXmate</a></li> <li><a href="/wiki/DECpc" title="DECpc">DECpc</a></li> <li><a href="/wiki/DECstation#PC" title="DECstation">DECstation</a></li> <li><a href="/wiki/DEC_Multia" title="DEC Multia">Multia</a></li> <li><a href="/wiki/Digital_Personal_Workstation" title="Digital Personal Workstation">Digital Personal Workstation</a></li> <li><a href="/wiki/Digital_HiNote" title="Digital HiNote">HiNote</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/MIPS_architecture" title="MIPS architecture">MIPS</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/DECstation#MIPS" title="DECstation">DECstation</a></li> <li><a href="/wiki/DECsystem" title="DECsystem">DECsystem servers</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/DEC_Alpha" title="DEC Alpha">Alpha</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/DEC_3000_AXP" title="DEC 3000 AXP">DEC 3000 AXP</a></li> <li><a href="/wiki/DEC_4000_AXP" title="DEC 4000 AXP">DEC 4000 AXP</a></li> <li><a href="/wiki/DEC_7000_AXP_and_DEC_10000_AXP" title="DEC 7000 AXP and DEC 10000 AXP">DEC 7000 AXP and DEC 10000 AXP</a></li> <li><a href="/wiki/DECpc_AXP_150" title="DECpc AXP 150">DECpc AXP 150</a></li> <li><a href="/wiki/DECpc_AXP_150#DEC_2000_AXP" title="DECpc AXP 150">DEC 2000 AXP</a></li> <li><a href="/wiki/DEC_Multia" title="DEC Multia">Multia</a></li> <li><a href="/wiki/AlphaServer" title="AlphaServer">AlphaServer</a></li> <li><a href="/wiki/AlphaStation" title="AlphaStation">AlphaStation</a></li> <li><a href="/wiki/Digital_Personal_Workstation" title="Digital Personal Workstation">Digital Personal Workstation</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">See also</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Compaq_Professional_Workstation" title="Compaq Professional Workstation">Compaq Professional Workstation 1000 XP</a></li> <li><a href="/wiki/Itsy_Pocket_Computer" title="Itsy Pocket Computer">Itsy Pocket Computer</a></li> <li><a href="/wiki/Jupiter_project" title="Jupiter project">Jupiter project</a></li> <li><a href="/wiki/List_of_VAX_computers" title="List of VAX computers">List of VAX computers</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div> <ul><li><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, 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