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.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 biography vcard"><tbody><tr><th colspan="2" class="infobox-above" style="font-size:125%;"><div class="fn">Richard D. Greenblatt</div></th></tr><tr><td colspan="2" class="infobox-image"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/File:Greenblattrpg-6cropped.jpg" class="mw-file-description"><img alt="Color photograph of older Caucasian man with grey hair wearing blue flannel shirt and glasses." src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Greenblattrpg-6cropped.jpg/220px-Greenblattrpg-6cropped.jpg" decoding="async" width="220" height="255" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Greenblattrpg-6cropped.jpg/330px-Greenblattrpg-6cropped.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5f/Greenblattrpg-6cropped.jpg/440px-Greenblattrpg-6cropped.jpg 2x" data-file-width="2017" data-file-height="2338" /></a></span><div class="infobox-caption">Richard Greenblatt in 2009</div></td></tr><tr><th scope="row" class="infobox-label">Born</th><td class="infobox-data"><span style="display:none"> (<span class="bday">1944-12-25</span>) </span>December 25, 1944<span class="noprint ForceAgeToShow"> (age 80)</span><br /><div style="display:inline" class="birthplace"><a href="/wiki/Portland,_Oregon" title="Portland, Oregon">Portland</a>, <a href="/wiki/Oregon" title="Oregon">Oregon</a>, United States</div></td></tr><tr><th scope="row" class="infobox-label">Education</th><td class="infobox-data"><a href="/wiki/Massachusetts_Institute_of_Technology" title="Massachusetts Institute of Technology">Massachusetts Institute of Technology</a> (MIT)</td></tr><tr><th scope="row" class="infobox-label">Known for</th><td class="infobox-data"><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="plainlist"> <ul><li><a href="/wiki/Mac_Hack" title="Mac Hack">Mac Hack</a> chess computer</li> <li><a href="/wiki/Maclisp" title="Maclisp">Maclisp</a></li> <li><a href="/wiki/Transposition_table" title="Transposition table">Transposition table</a></li> <li><a href="/wiki/Incompatible_Timesharing_System" title="Incompatible Timesharing System">Incompatible Timesharing System</a></li></ul> </div></td></tr><tr><th scope="row" class="infobox-label">Relatives</th><td class="infobox-data"><a href="/wiki/Aliza_Greenblatt" title="Aliza Greenblatt">Aliza Greenblatt</a> (paternal grandmother)<br /><a href="/wiki/Marjorie_Guthrie" title="Marjorie Guthrie">Marjorie Guthrie</a> (aunt)</td></tr><tr><td colspan="2" class="infobox-full-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"><b>Scientific career</b></td></tr><tr><th scope="row" class="infobox-label">Fields</th><td class="infobox-data category"><a href="/wiki/Computer_programming" title="Computer programming">Computer programming</a></td></tr><tr><th scope="row" class="infobox-label">Institutions</th><td class="infobox-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1126788409"><div class="plainlist"> <ul><li>MIT</li> <li><a href="/wiki/Lisp_Machines" title="Lisp Machines">Lisp Machines</a></li></ul> </div></td></tr><tr style="display:none"><td colspan="2"> </td></tr></tbody></table> <p><b>Richard D. Greenblatt</b> (born December 25, 1944) is an American <a href="/wiki/Computer" title="Computer">computer</a> <a href="/wiki/Programmer" title="Programmer">programmer</a>. Along with <a href="/wiki/Bill_Gosper" title="Bill Gosper">Bill Gosper</a>, he may be considered to have founded the <a href="/wiki/Hacker_(programmer_subculture)" class="mw-redirect" title="Hacker (programmer subculture)">hacker</a> community,<sup id="cite_ref-Hackers_1-0" class="reference"><a href="#cite_note-Hackers-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> and holds a place of distinction in the <a href="/wiki/Community_of_practice" title="Community of practice">communities</a> of the programming language <a href="/wiki/Lisp_(programming_language)" title="Lisp (programming language)">Lisp</a> and of the <a href="/wiki/Massachusetts_Institute_of_Technology" title="Massachusetts Institute of Technology">Massachusetts Institute of Technology</a> (MIT) <a href="/wiki/MIT_Computer_Science_and_Artificial_Intelligence_Laboratory" title="MIT Computer Science and Artificial Intelligence Laboratory">Artificial Intelligence Laboratory</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Early_life">Early life</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Richard_Greenblatt_(programmer)&action=edit&section=1" title="Edit section: Early life"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Greenblatt was born in Portland, Oregon on December 25, 1944. His family moved to Philadelphia, Pennsylvania when he was a child. He later moved to Columbia, Missouri with his mother and sister when his parents divorced.<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> </p> <div class="mw-heading mw-heading2"><h2 id="Career">Career</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Richard_Greenblatt_(programmer)&action=edit&section=2" title="Edit section: Career"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <div class="mw-heading mw-heading3"><h3 id="Becoming_a_hacker">Becoming a hacker</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Richard_Greenblatt_(programmer)&action=edit&section=3" title="Edit section: Becoming a hacker"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Greenblatt enrolled in <a href="/wiki/Massachusetts_Institute_of_Technology" title="Massachusetts Institute of Technology">MIT</a> in the fall of 1962, and around his second term as an undergraduate student, he found his way to MIT's famous <a href="/wiki/Tech_Model_Railroad_Club" title="Tech Model Railroad Club">Tech Model Railroad Club</a>. At that time, <a href="/wiki/Peter_Samson" title="Peter Samson">Peter Samson</a> had written a program in <a href="/wiki/Fortran" title="Fortran">Fortran</a> for the <a href="/wiki/IBM_709" title="IBM 709">IBM 709</a> series machines, to automate the tedious business of writing the intricate timetables for the Railroad Club's vast model train layout. Greenblatt felt compelled to implement a Fortran <a href="/wiki/Compiler" title="Compiler">compiler</a> for the <a href="/wiki/PDP-1" title="PDP-1">PDP-1</a>, which then lacked one. There was no computer time available to <a href="/wiki/Debugging" title="Debugging">debug</a> the compiler, or even to type it into the computer. Years later, elements of this compiler (combined with some ideas from fellow TMRC member Steven Piner, the author of a very early <a href="/wiki/PDP-4" title="PDP-4">PDP-4</a> Fortran compiler while working for <a href="/wiki/Digital_Equipment_Corporation" title="Digital Equipment Corporation">Digital Equipment Corporation</a>) were typed in and "showed signs of life". However, the perceived need for a Fortran compiler had evaporated by then, so the compiler was not pursued further. This and other experiences at TMRC, especially the influence of <a href="/wiki/Alan_Kotok" title="Alan Kotok">Alan Kotok</a>, who worked at DEC and was the junior partner of the design team for the <a href="/wiki/PDP-6" title="PDP-6">PDP-6</a> computer, led Greenblatt to the <a href="/wiki/MIT_Artificial_Intelligence_Laboratory" class="mw-redirect" title="MIT Artificial Intelligence Laboratory">AI Lab</a>, where he proceeded to become a "hacker's hacker" noted for his programming acumen as described in <a href="/wiki/Steven_Levy" title="Steven Levy">Steven Levy</a>'s <i><a href="/wiki/Hackers:_Heroes_of_the_Computer_Revolution" title="Hackers: Heroes of the Computer Revolution">Hackers: Heroes of the Computer Revolution</a></i>, and as acknowledged by <a href="/wiki/Gerald_Jay_Sussman" title="Gerald Jay Sussman">Gerald Jay Sussman</a> and <a href="/wiki/Harold_Abelson" class="mw-redirect" title="Harold Abelson">Harold Abelson</a> when they said they were fortunate to have been apprentice programmers at the feet of <a href="/wiki/Bill_Gosper" title="Bill Gosper">Bill Gosper</a> and Richard Greenblatt.<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><p>Indeed, he spent so much time programming the <a href="/wiki/Programmed_Data_Processor" title="Programmed Data Processor">Programmed Data Processor</a> (PDP) machines there that he failed out of MIT as a first-term junior and had to take a job at a firm, Charles Adams Associates, until the AI Lab hired him about 6 months later. </p> <div class="mw-heading mw-heading3"><h3 id="Lisp_Machines,_Inc."><span id="Lisp_Machines.2C_Inc."></span>Lisp Machines, Inc.</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Richard_Greenblatt_(programmer)&action=edit&section=4" title="Edit section: Lisp Machines, Inc."><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>In 1979, he and <a href="/wiki/Tom_Knight_(scientist)" title="Tom Knight (scientist)">Tom Knight</a><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> were the main designers of the MIT <a href="/wiki/Lisp_machine" title="Lisp machine">Lisp machine</a>. He founded <a href="/wiki/Lisp_Machines" title="Lisp Machines">Lisp Machines</a>, Inc. (later renamed Gigamos Systems), according to his vision of an ideal hacker-friendly computer company, as opposed to the more commercial ideals of <a href="/wiki/Symbolics" title="Symbolics">Symbolics</a>. </p> <div class="mw-heading mw-heading2"><h2 id="Significant_software_developed">Significant software developed</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Richard_Greenblatt_(programmer)&action=edit&section=5" title="Edit section: Significant software developed"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>He was the main implementor of <a href="/wiki/Maclisp" title="Maclisp">Maclisp</a> on the <a href="/wiki/PDP-6" title="PDP-6">PDP-6</a>. He wrote <a href="/wiki/Mac_Hack" title="Mac Hack">Mac Hack</a>, the first computer program to play tournament-level chess and the first to compete in a human chess tournament. AI skeptic <a href="/wiki/Hubert_Dreyfus" title="Hubert Dreyfus">Hubert Dreyfus</a>, who famously made the claim that computers would not be able to play high-quality chess, was beaten by the program, marking the start of "respectable" <a href="/wiki/Computer_chess" title="Computer chess">computer chess</a> performances. In 1977, unbeaten chess champion <a href="/wiki/Bobby_Fischer" title="Bobby Fischer">Bobby Fischer</a> played three games in <a href="/wiki/Cambridge,_Massachusetts" title="Cambridge, Massachusetts">Cambridge, Massachusetts</a> against Greenblatt's computer program, and Fischer won all of them.<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> Greenblatt, along with <a href="/wiki/Tom_Knight_(scientist)" title="Tom Knight (scientist)">Tom Knight</a> and <a href="/wiki/Stewart_Nelson_(hacker)" class="mw-redirect" title="Stewart Nelson (hacker)">Stewart Nelson</a>, co-wrote the <a href="/wiki/Incompatible_Timesharing_System" title="Incompatible Timesharing System">Incompatible Timesharing System</a> (ITS), a highly influential <a href="/wiki/Time-sharing" title="Time-sharing">time-sharing</a> operating system for the <a href="/wiki/PDP-6" title="PDP-6">PDP-6</a> and <a href="/wiki/PDP-10" title="PDP-10">PDP-10</a> used at <a href="/wiki/MIT" class="mw-redirect" title="MIT">MIT</a>.<sup id="cite_ref-Hackers_1-1" class="reference"><a href="#cite_note-Hackers-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p> <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=Richard_Greenblatt_(programmer)&action=edit&section=6" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist reflist-columns references-column-width" style="column-width: 30em;"> <ol class="references"> <li id="cite_note-Hackers-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-Hackers_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Hackers_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="CITEREFLevy1984" class="citation book cs1"><a href="/wiki/Steven_Levy" title="Steven Levy">Levy, Steven</a> (1984). <a rel="nofollow" class="external text" href="https://mitpress.mit.edu/sites/default/files/sicp/"><i>Hackers: Heroes of the Computer Revolution</i></a>. Massachusetts: MIT Press. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/0-262-51087-1" title="Special:BookSources/0-262-51087-1"><bdi>0-262-51087-1</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Hackers%3A+Heroes+of+the+Computer+Revolution&rft.place=Massachusetts&rft.pub=MIT+Press&rft.date=1984&rft.isbn=0-262-51087-1&rft.aulast=Levy&rft.aufirst=Steven&rft_id=https%3A%2F%2Fmitpress.mit.edu%2Fsites%2Fdefault%2Ffiles%2Fsicp%2F&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARichard+Greenblatt+%28programmer%29" class="Z3988"></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFHendrie2005" class="citation web cs1">Hendrie, Gardner (January 12, 2005). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20100223052945/http://www.computerhistory.org/chess/related_materials/oral-history/greenblatt.oral_history.2005.102634500/index.php?iid=orl-433440f03cfe1">"Oral History of Richard Greenblatt"</a>. <i>Computer History Museum</i>. Archived from <a rel="nofollow" class="external text" href="https://www.computerhistory.org/chess/related_materials/oral-history/greenblatt.oral_history.2005.102634500/index.php/?iid=orl-433440f03cfe1">the original</a> on February 23, 2010<span class="reference-accessdate">. Retrieved <span class="nowrap">September 23,</span> 2024</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Computer+History+Museum&rft.atitle=Oral+History+of+Richard+Greenblatt&rft.date=2005-01-12&rft.aulast=Hendrie&rft.aufirst=Gardner&rft_id=https%3A%2F%2Fwww.computerhistory.org%2Fchess%2Frelated_materials%2Foral-history%2Fgreenblatt.oral_history.2005.102634500%2Findex.php%2F%3Fiid%3Dorl-433440f03cfe1&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARichard+Greenblatt+%28programmer%29" 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 book cs1"><a rel="nofollow" class="external text" href="http://mitpress.mit.edu/sicp/full-text/book/book-Z-H-8.html#%_chap_Temp_5"><i>Structure and Interpretation of Computer Programs</i></a>. MIT Press.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Structure+and+Interpretation+of+Computer+Programs&rft.pub=MIT+Press&rft_id=http%3A%2F%2Fmitpress.mit.edu%2Fsicp%2Ffull-text%2Fbook%2Fbook-Z-H-8.html%23%25_chap_Temp_5&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARichard+Greenblatt+%28programmer%29" 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"><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.computerhistory.org/chess/full_record.php?iid=stl-431614f64ea3e">"Richard Greenblatt and Thomas Knight with the CADR LISP Machine at MIT in 1978"</a>. <i>Computer History Museum</i>. 1978<span class="reference-accessdate">. Retrieved <span class="nowrap">November 16,</span> 2018</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=Computer+History+Museum&rft.atitle=Richard+Greenblatt+and+Thomas+Knight+with+the+CADR+LISP+Machine+at+MIT+in+1978&rft.date=1978&rft_id=http%3A%2F%2Fwww.computerhistory.org%2Fchess%2Ffull_record.php%3Fiid%3Dstl-431614f64ea3e&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARichard+Greenblatt+%28programmer%29" class="Z3988"></span></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="CITEREFAyoub2003–2008" class="citation web cs1">Ayoub, Chuck (2003–2008). <a rel="nofollow" class="external text" href="https://web.archive.org/web/20060103073409/http://www.bobby-fischer.net/Bobby_Fischer_Biography.html">"Bobby Fischer Biography"</a>. Chuck Ayoub. Archived from <a rel="nofollow" class="external text" href="http://www.bobby-fischer.net/Bobby_Fischer_Biography.html">the original</a> on January 3, 2006<span class="reference-accessdate">. Retrieved <span class="nowrap">January 1,</span> 2009</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Bobby+Fischer+Biography&rft.pub=Chuck+Ayoub&rft.date=2003%2F2008&rft.aulast=Ayoub&rft.aufirst=Chuck&rft_id=http%3A%2F%2Fwww.bobby-fischer.net%2FBobby_Fischer_Biography.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ARichard+Greenblatt+%28programmer%29" class="Z3988"></span></span> </li> </ol></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Richard_Greenblatt_(programmer)&action=edit&section=7" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1235681985">.mw-parser-output .side-box{margin:4px 0;box-sizing:border-box;border:1px solid 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.mw-parser-output .navbox{display:none!important}}</style></div><div role="navigation" class="navbox" aria-labelledby="Lisp_programming880" style="padding:3px"><table class="nowraplinks hlist mw-collapsible mw-collapsed 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:Lisp_programming_language" title="Template:Lisp programming language"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Lisp_programming_language" title="Template talk:Lisp programming language"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Lisp_programming_language" title="Special:EditPage/Template:Lisp programming language"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Lisp_programming880" style="font-size:114%;margin:0 4em"><a href="/wiki/Lisp_(programming_language)" title="Lisp (programming language)">Lisp programming</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Features</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Garbage_collection_(computer_science)" title="Garbage collection (computer science)">Automatic storage management</a></li> <li><a href="/wiki/Conditional_(computer_programming)" title="Conditional (computer programming)">Conditionals</a></li> <li><a href="/wiki/Dynamic_typing" class="mw-redirect" title="Dynamic typing">Dynamic typing</a></li> <li><a href="/wiki/Higher-order_function" title="Higher-order function">Higher-order functions</a></li> <li><a href="/wiki/Linked_list" title="Linked list">Linked lists</a></li> <li><a href="/wiki/Macro_(computer_science)" title="Macro (computer science)">Macros</a></li> <li><a href="/wiki/M-expression" title="M-expression">M-expressions</a> (deprecated)</li> <li><a href="/wiki/Read%E2%80%93eval%E2%80%93print_loop" title="Read–eval–print loop">Read–eval–print loop</a></li> <li><a href="/wiki/Recursion_(computer_science)" title="Recursion (computer science)">Recursion</a></li> <li><a href="/wiki/S-expression" title="S-expression">S-expressions</a></li> <li><a href="/wiki/Self-hosting_(compilers)" title="Self-hosting (compilers)">Self-hosting</a> <a href="/wiki/Compiler" title="Compiler">compiler</a></li> <li><a href="/wiki/Tree_data_structure" class="mw-redirect" title="Tree data structure">Tree data structures</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Object-oriented_programming" title="Object-oriented programming">Object</a> systems</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/Common_Lisp_Object_System" title="Common Lisp Object System">Common Lisp Object System</a> (CLOS)</li> <li><a href="/wiki/CommonLoops" title="CommonLoops">CommonLoops</a></li> <li><a href="/wiki/Flavors_(programming_language)" title="Flavors (programming language)">Flavors</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Programming_language_implementation" title="Programming language implementation">Implementations</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Technical_standard" title="Technical standard">Standardized</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Common_Lisp" title="Common Lisp">Common<br />Lisp</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/Allegro_Common_Lisp" title="Allegro Common Lisp">Allegro Common Lisp</a></li> <li><a href="/wiki/Armed_Bear_Common_Lisp" class="mw-redirect" title="Armed Bear Common Lisp">Armed Bear Common Lisp</a> (ABCL)</li> <li><a href="/wiki/CLISP" title="CLISP">CLISP</a></li> <li><a href="/wiki/Clozure_CL" title="Clozure CL">Clozure CL</a></li> <li><a href="/wiki/CMU_Common_Lisp" title="CMU Common Lisp">CMU Common Lisp</a> (CMUCL)</li> <li><a href="/wiki/Corman_Common_Lisp" class="mw-redirect" title="Corman Common Lisp">Corman Common Lisp</a></li> <li><a href="/wiki/Embeddable_Common_Lisp" title="Embeddable Common Lisp">Embeddable Common Lisp</a> (ECL)</li> <li><a href="/wiki/GNU_Common_Lisp" title="GNU Common Lisp">GNU Common Lisp</a> (GCL)</li> <li><a href="/wiki/LispWorks" title="LispWorks">LispWorks</a></li> <li><a href="/wiki/Macintosh_Common_Lisp" title="Macintosh Common Lisp">Macintosh Common Lisp</a></li> <li><a href="/wiki/Mocl" title="Mocl">Mocl</a></li> <li>Movitz</li> <li><a href="/wiki/Poplog" title="Poplog">Poplog</a></li> <li><a href="/wiki/Steel_Bank_Common_Lisp" title="Steel Bank Common Lisp">Steel Bank Common Lisp</a> (SBCL)</li> <li><a href="/wiki/Genera_(operating_system)" title="Genera (operating system)">Symbolics Common Lisp</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Scheme_(programming_language)" title="Scheme (programming language)">Scheme</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><i><a href="/wiki/History_of_the_Scheme_programming_language" title="History of the Scheme programming language">History</a></i></li> <li><a href="/wiki/Bigloo" title="Bigloo">Bigloo</a></li> <li><a href="/wiki/Chez_Scheme" title="Chez Scheme">Chez Scheme</a></li> <li><a href="/wiki/Chicken_(Scheme_implementation)" title="Chicken (Scheme implementation)">Chicken</a></li> <li><a href="/wiki/Gambit_(scheme_implementation)" class="mw-redirect" title="Gambit (scheme implementation)">Gambit</a></li> <li><a href="/wiki/Game_Oriented_Assembly_Lisp" title="Game Oriented Assembly Lisp">Game Oriented Assembly Lisp</a> (GOAL)</li> <li><a href="/wiki/GNU_Guile" title="GNU Guile">GNU Guile</a></li> <li><a href="/wiki/Ikarus_(Scheme_implementation)" title="Ikarus (Scheme implementation)">Ikarus</a></li> <li><a href="/wiki/JScheme" title="JScheme">JScheme</a></li> <li><a href="/wiki/Kawa_(Scheme_implementation)" title="Kawa (Scheme implementation)">Kawa</a></li> <li><a href="/wiki/MIT/GNU_Scheme" title="MIT/GNU Scheme">MIT/GNU Scheme</a></li> <li><a href="/wiki/MultiLisp" title="MultiLisp">MultiLisp</a></li> <li><a href="/wiki/Pico_(programming_language)" title="Pico (programming language)">Pico</a></li> <li>Pocket Scheme</li> <li><a href="/wiki/Racket_(programming_language)" title="Racket (programming language)">Racket</a> (<a href="/wiki/Racket_features" title="Racket features">features</a>)</li> <li><a href="/wiki/Scheme_48" title="Scheme 48">Scheme 48</a></li> <li><a href="/wiki/SCM_(Scheme_implementation)" title="SCM (Scheme implementation)">SCM</a></li> <li><a href="/wiki/SIOD" title="SIOD">SIOD</a></li> <li><a href="/wiki/T_(programming_language)" title="T (programming language)">T</a></li> <li><a href="/wiki/TinyScheme" title="TinyScheme">TinyScheme</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/ISLISP" title="ISLISP">ISLISP</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/OpenLisp" title="OpenLisp">OpenLisp</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Unstandardized</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Logo_(programming_language)" title="Logo (programming language)">Logo</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/MSWLogo" title="MSWLogo">MSWLogo</a></li> <li><a href="/wiki/NetLogo" title="NetLogo">NetLogo</a></li> <li><a href="/wiki/StarLogo" title="StarLogo">StarLogo</a></li> <li><a href="/wiki/UCBLogo" title="UCBLogo">UCBLogo</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/POP-11" title="POP-11">POP</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/COWSEL" title="COWSEL">COWSEL</a> (POP-1)</li> <li><a href="/wiki/POP-2" title="POP-2">POP-2</a></li> <li><a href="/wiki/POP-11" title="POP-11">POP-11</a></li></ul> </div></td></tr></tbody></table><div> <ul><li><a href="/wiki/Arc_(programming_language)" title="Arc (programming language)">Arc</a></li> <li><a href="/wiki/AutoLISP" title="AutoLISP">AutoLISP</a></li> <li><a href="/wiki/BBN_LISP" title="BBN LISP">BBN LISP</a></li> <li><a href="/wiki/Clojure" title="Clojure">Clojure</a></li> <li><a href="/wiki/Dylan_(programming_language)" title="Dylan (programming language)">Dylan</a> (<a href="/wiki/Apple_Dylan" title="Apple Dylan">Apple</a>, <i><a href="/wiki/History_of_the_Dylan_programming_language" title="History of the Dylan programming language">history</a></i>)</li> <li><a href="/wiki/Emacs_Lisp" title="Emacs Lisp">Emacs Lisp</a></li> <li><a href="/wiki/EuLisp" title="EuLisp">EuLisp</a></li> <li><a href="/wiki/Franz_Lisp" title="Franz Lisp">Franz Lisp</a>, <a href="/wiki/PC-LISP" title="PC-LISP">PC-LISP</a></li> <li><a href="/wiki/Hy_(programming_language)" title="Hy (programming language)">Hy</a></li> <li><a href="/wiki/Interlisp" title="Interlisp">Interlisp</a></li> <li><a href="/wiki/Knowledge_Engineering_Environment" title="Knowledge Engineering Environment">Knowledge Engineering Environment</a></li> <li><a href="/wiki/*Lisp" title="*Lisp">*Lisp</a></li> <li><a href="/wiki/LeLisp" class="mw-redirect" title="LeLisp">LeLisp</a></li> <li><a href="/wiki/LFE_(programming_language)" title="LFE (programming language)">LFE</a></li> <li><a href="/wiki/Lisp_Machine_Lisp" title="Lisp Machine Lisp">Lisp Machine Lisp</a></li> <li><a href="/wiki/Lispkit_Lisp" title="Lispkit Lisp">Lispkit Lisp</a></li> <li><a href="/wiki/Maclisp" title="Maclisp">Maclisp</a></li> <li><a href="/wiki/MDL_(programming_language)" title="MDL (programming language)">MDL</a></li> <li><a href="/wiki/MLisp" title="MLisp">MLisp</a></li> <li><a href="/wiki/NewLISP" title="NewLISP">newLISP</a></li> <li><a href="/wiki/NIL_(programming_language)" title="NIL (programming language)">NIL</a></li> <li><a href="/wiki/PC-LISP" title="PC-LISP">PC-LISP</a></li> <li><a href="/wiki/Picolisp" class="mw-redirect" title="Picolisp">Picolisp</a></li> <li><a href="/wiki/Portable_Standard_Lisp" title="Portable Standard Lisp">Portable Standard Lisp</a></li> <li><a href="/wiki/RPL_(programming_language)" title="RPL (programming language)">RPL</a></li> <li><a href="/wiki/S-1_Lisp" title="S-1 Lisp">S-1 Lisp</a></li> <li><a href="/wiki/Cadence_SKILL" title="Cadence SKILL">SKILL</a></li> <li><a href="/wiki/Spice_Lisp" title="Spice Lisp">Spice Lisp</a></li> <li><a href="/wiki/Zetalisp" class="mw-redirect" title="Zetalisp">Zetalisp</a></li></ul></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Operating_system" title="Operating system">Operating system</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <li><b><a href="/wiki/Lisp_(programming_language)#Operating_systems" title="Lisp (programming language)">List</a></b></li> <li><a href="/wiki/Common_Lisp_Interface_Manager" title="Common Lisp Interface Manager">Common Lisp Interface Manager</a>, <a href="/wiki/McCLIM" title="McCLIM">McCLIM</a></li> <li><a href="/wiki/Genera_(operating_system)" title="Genera (operating system)">Genera</a></li> <li><a href="/wiki/Scsh" title="Scsh">Scsh</a></li> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Computer_hardware" title="Computer hardware">Hardware</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/Lisp_machine" title="Lisp machine">Lisp machine</a> <ul><li><a href="/wiki/TI_Explorer" class="mw-redirect" title="TI Explorer">TI Explorer</a></li></ul></li> <li><a href="/wiki/Space-cadet_keyboard" title="Space-cadet keyboard">Space-cadet keyboard</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Community_of_practice" title="Community of practice">Community<br />of practice</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Technical standards</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/Scheme_Requests_for_Implementation" title="Scheme Requests for Implementation">Scheme Requests for Implementation</a></li> <li><a href="/wiki/Common_Lisp_HyperSpec" title="Common Lisp HyperSpec">Common Lisp HyperSpec</a></li> <li><a href="/wiki/X3J13" title="X3J13">X3J13</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Education</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Books</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/Common_Lisp_the_Language" title="Common Lisp the Language">Common Lisp the Language</a></li> <li><a href="/wiki/How_to_Design_Programs" title="How to Design Programs">How to Design Programs</a> (HTDP)</li> <li><a href="/wiki/On_Lisp" title="On Lisp">On Lisp</a></li> <li><a href="/wiki/Practical_Common_Lisp" title="Practical Common Lisp">Practical Common Lisp</a></li> <li><a href="/wiki/Structure_and_Interpretation_of_Computer_Programs" title="Structure and Interpretation of Computer Programs">Structure and Interpretation of Computer Programs</a> (SICP)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Curriculum</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/ProgramByDesign" title="ProgramByDesign">ProgramByDesign</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Organizations</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%">Business</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/Apple_Inc." title="Apple Inc.">Apple Computer</a></li> <li><a href="/wiki/BBN_Technologies" class="mw-redirect" title="BBN Technologies">Bolt, Beranek and Newman</a></li> <li><a href="/wiki/Harlequin_(software_company)" title="Harlequin (software company)">Harlequin</a></li> <li><a href="/wiki/Lucid_Inc." title="Lucid Inc.">Lucid Inc.</a></li> <li><a href="/wiki/Symbolics" title="Symbolics">Symbolics</a></li> <li><a href="/wiki/Xanalys" title="Xanalys">Xanalys</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Education</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/Massachusetts_Institute_of_Technology" title="Massachusetts Institute of Technology">Massachusetts Institute of Technology</a> (MIT)</li> <li><a href="/wiki/MIT_Computer_Science_and_Artificial_Intelligence_Laboratory" title="MIT Computer Science and Artificial Intelligence Laboratory">MIT Computer Science and Artificial Intelligence Laboratory</a> (CSAIL)</li> <li><a href="/wiki/Stanford_University_centers_and_institutes#Stanford_Artificial_Intelligence_Laboratory" title="Stanford University centers and institutes">Stanford Artificial Intelligence Laboratory</a></li> <li><a href="/wiki/University_of_California,_Berkeley" title="University of California, Berkeley">University of California, Berkeley</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">People</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><td colspan="2" class="navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Edmund_Berkeley" title="Edmund Berkeley">Edmund Berkeley</a></li> <li><a href="/wiki/Daniel_G._Bobrow" title="Daniel G. Bobrow">Daniel G. Bobrow</a></li> <li><a href="/wiki/William_Clinger_(computer_scientist)" title="William Clinger (computer scientist)">William Clinger</a></li> <li><a href="/wiki/R._Kent_Dybvig" title="R. Kent Dybvig">R. Kent Dybvig</a></li> <li><a href="/wiki/Matthias_Felleisen" title="Matthias Felleisen">Matthias Felleisen</a></li> <li><a href="/wiki/Robert_Bruce_Findler" title="Robert Bruce Findler">Robert Bruce Findler</a></li> <li><a href="/wiki/Matthew_Flatt" title="Matthew Flatt">Matthew Flatt</a></li> <li><a href="/wiki/Phyllis_Fox" title="Phyllis Fox">Phyllis Fox</a></li> <li><a href="/wiki/Paul_Graham_(programmer)" title="Paul Graham (programmer)">Paul Graham</a></li> <li><a class="mw-selflink selflink">Richard Greenblatt</a></li> <li>Timothy P. Hart</li> <li><a href="/wiki/Louis_Hodes" title="Louis Hodes">Louis Hodes</a></li> <li>Mike Levin</li> <li><a href="/wiki/David_Luckham" title="David Luckham">David Luckham</a></li> <li><a href="/wiki/John_McCarthy_(computer_scientist)" title="John McCarthy (computer scientist)">John McCarthy</a></li> <li><a href="/wiki/Robert_Tappan_Morris" title="Robert Tappan Morris">Robert Tappan Morris</a></li> <li><a href="/wiki/Joel_Moses" title="Joel Moses">Joel Moses</a></li> <li><a href="/wiki/David_Park_(computer_scientist)" title="David Park (computer scientist)">David Park</a></li> <li><a href="/wiki/Steve_Russell_(computer_scientist)" title="Steve Russell (computer scientist)">Steve Russell</a></li> <li><a href="/wiki/Richard_Stallman" title="Richard Stallman">Richard Stallman</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Common_Lisp" title="Common Lisp">Common Lisp</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/Scott_Fahlman" title="Scott Fahlman">Scott Fahlman</a></li> <li><a href="/wiki/Richard_P._Gabriel" title="Richard P. Gabriel">Richard P. Gabriel</a></li> <li><a href="/wiki/Philip_Greenspun" title="Philip Greenspun">Philip Greenspun</a> (<a href="/wiki/Greenspun%27s_tenth_rule" title="Greenspun's tenth rule">10th rule</a>)</li> <li><a href="/wiki/David_A._Moon" title="David A. Moon">David A. Moon</a></li> <li><a href="/wiki/Kent_Pitman" title="Kent Pitman">Kent Pitman</a></li> <li><a href="/wiki/Guy_L._Steele_Jr." title="Guy L. Steele Jr.">Guy L. 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