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.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">Charles Petzold</div></th></tr><tr><td colspan="2" class="infobox-image"><span class="mw-default-size" typeof="mw:File/Frameless"><a href="/wiki/File:Charles_Petzold_in_2015_(cropped).jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/0/00/Charles_Petzold_in_2015_%28cropped%29.jpg/220px-Charles_Petzold_in_2015_%28cropped%29.jpg" decoding="async" width="220" height="293" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/0/00/Charles_Petzold_in_2015_%28cropped%29.jpg 1.5x" data-file-width="300" data-file-height="400" /></a></span></td></tr><tr><th scope="row" class="infobox-label">Born</th><td class="infobox-data"><span style="display:none"> (<span class="bday">1953-02-02</span>) </span>February 2, 1953<span class="noprint ForceAgeToShow"> (age 71)</span><br /><div style="display:inline" class="birthplace"><a href="/wiki/New_Brunswick,_New_Jersey" title="New Brunswick, New Jersey">New Brunswick</a>, <a href="/wiki/New_Jersey" title="New Jersey">New Jersey</a></div></td></tr><tr><th scope="row" class="infobox-label">Alma mater</th><td class="infobox-data"><a href="/wiki/Stevens_Institute_of_Technology" title="Stevens Institute of Technology">Stevens Institute of Technology</a></td></tr><tr><th scope="row" class="infobox-label">Employer</th><td class="infobox-data org"><a href="/wiki/Xamarin" title="Xamarin">Xamarin</a> (2014-2018) <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><sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></td></tr><tr><th scope="row" class="infobox-label">Spouse</th><td class="infobox-data">Deirdre Sinnott</td></tr><tr><th scope="row" class="infobox-label">Website</th><td class="infobox-data"><a rel="nofollow" class="external text" href="http://www.charlespetzold.com/">www.charlespetzold.com</a></td></tr></tbody></table> <p><b>Charles Petzold</b> (born February 2, 1953) is an American <a href="/wiki/Programmer" title="Programmer">programmer</a> and technical author on <a href="/wiki/Microsoft_Windows" title="Microsoft Windows">Microsoft Windows</a> applications. He is also a <a href="/wiki/Microsoft_Most_Valuable_Professional" title="Microsoft Most Valuable Professional">Microsoft Most Valuable Professional</a> and was named one of Microsoft's seven <a href="/wiki/Windows_Pioneers" title="Windows Pioneers">Windows Pioneers</a>. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Biography">Biography</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Charles_Petzold&action=edit&section=1" title="Edit section: Biography"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>He graduated with a <a href="/wiki/Master_of_Science" title="Master of Science">Master of Science</a> in Mathematics from <a href="/wiki/Stevens_Institute_of_Technology" title="Stevens Institute of Technology">Stevens Institute of Technology</a> in 1975. Aside from writing books about Windows programming he has contributed to various magazines about computers. </p><p>He had an interest in electronic music and in 1977 started building electronic music instruments out of <a href="/wiki/CMOS" title="CMOS">CMOS</a> chips. In 1979, Petzold started building a computer-controlled digital electronic music <a href="/wiki/Synthesizer" title="Synthesizer">synthesizer</a> based on the <a href="/wiki/Zilog_Z80" title="Zilog Z80">Zilog Z80</a> <a href="/wiki/Microprocessor" title="Microprocessor">microprocessor</a>.<sup id="cite_ref-Blog_3-0" class="reference"><a href="#cite_note-Blog-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> This experience of digital circuitry and <a href="/wiki/Assembly_language" title="Assembly language">assembly language</a> programming formed the basis of his book <i>Code: The Hidden Language of Computer Hardware and Software</i>. </p><p>Petzold purchased a two-diskette <a href="/wiki/IBM_Personal_Computer" title="IBM Personal Computer">IBM PC</a> in 1984 for $5,000.<sup id="cite_ref-Blog_3-1" class="reference"><a href="#cite_note-Blog-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> This debt encouraged him to use the PC to earn some revenue so he wrote an article about <a href="/wiki/ANSI.SYS" title="ANSI.SYS">ANSI.SYS</a> and the <a href="/wiki/List_of_DOS_commands#PROMPT" title="List of DOS commands">PROMPT</a> command. This was submitted to <a href="/wiki/PC_Magazine" class="mw-redirect" title="PC Magazine">PC Magazine</a> for which they paid $800. This was the beginning of Petzold's career as a paid writer. </p><p>In 1984, PC Magazine decided to do a review of printers. They asked all current New York contributors to help with the review. Petzold showed the staff some small assembly-language programs he had written. Soon he was busy writing little 300-500 byte <a href="/wiki/COM_file" title="COM file">.COM</a> file utilities for PC Magazine. </p><p>Petzold was soon getting so much freelance work from PC Magazine that he was able to quit his job. </p><p><a href="/wiki/Microsoft" title="Microsoft">Microsoft</a> then decided that <i><a href="/wiki/Microsoft_Systems_Journal" class="mw-redirect" title="Microsoft Systems Journal">Microsoft Systems Journal</a></i> would cover both <a href="/wiki/DOS" title="DOS">DOS</a> and Windows programming. Jonathan Lazarus, who contracted with Microsoft, recruited Petzold to write some articles.<sup id="cite_ref-Blog_3-2" class="reference"><a href="#cite_note-Blog-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> Petzold wrote the article <i>A Step-by-Step Guide to Building Your First Windows Application</i>" for MSJ, Vol.1, No. 2 (December 1986) which he believes was the first article about Windows programming to appear in a magazine.<sup id="cite_ref-Blog_3-3" class="reference"><a href="#cite_note-Blog-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </p><p>Petzold told some people at a Microsoft-related function that he really enjoyed writing this type of article. This news was relayed to <a href="/wiki/Microsoft_Press" title="Microsoft Press">Microsoft Press</a> editor-in-chief Susan Lammers. This resulted in Petzold being contracted to write the first edition of <i>Programming Windows</i> from January until August 1987. </p> <div class="mw-heading mw-heading2"><h2 id="Bibliography">Bibliography</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Charles_Petzold&action=edit&section=2" title="Edit section: Bibliography"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><i>Creating Mobile Apps with Xamarin.Forms</i> Cross-platform C# programming for iOS, Android, and Windows Phone (Microsoft Press, 2016, 1166 pages) <a rel="nofollow" class="external autonumber" href="https://docs.microsoft.com/en-us/xamarin/xamarin-forms/creating-mobile-apps-xamarin-forms">[2]</a></li> <li><i>Programming Windows Sixth Edition</i> Writing Windows 8 Apps with C# and XAML (Microsoft Press, 2012, 1136 pages)</li> <li><i>Programming Windows Phone 7 Series</i> (Microsoft Press, 2010) <a rel="nofollow" class="external text" href="http://www.microsoft.com/downloads/en/details.aspx?FamilyID=bb8f5eb6-8214-4387-bf02-f78f314a74eb">(free download)</a></li> <li><i><a href="/wiki/The_Annotated_Turing" title="The Annotated Turing">The Annotated Turing</a>: A Guided Tour through Alan Turing's Historic Paper on Computability and the Turing Machine</i> (Wiley, 2008)</li> <li><i>3D Programming for Windows - Three-Dimensional Graphics Programming for the Windows Presentation Foundation</i> (Microsoft Press, 2007)</li> <li><i><a rel="nofollow" class="external text" href="http://www.charlespetzold.com/dotnet/index.html">.NET Book Zero What the C or C++ Programmer Needs to Know about C# and the .NET Framework (free download)</a></i></li> <li><i>Applications = Code + Markup - A Guide to the Microsoft Windows Presentation Foundation</i> (Microsoft Press, 2006)</li> <li><i>Programming Microsoft Windows Forms</i> (Microsoft Press, 2005; 384 pages)</li> <li><i>Programming in the Key of C#: A Primer for Aspiring Programmers</i> (Microsoft Press, 2003; 418 pages)</li> <li><i>Programming Microsoft Windows with C#</i> (Microsoft Press, 2001; 1290 pages)</li> <li><i><a href="/wiki/Code:_The_Hidden_Language_of_Computer_Hardware_and_Software" title="Code: The Hidden Language of Computer Hardware and Software">Code: The Hidden Language of Computer Hardware and Software</a></i> (Microsoft Press, 1999; 393 pages. Second edition: 2022, 480 pages)</li> <li><i>Programming Windows, Fifth Edition</i> (Microsoft Press, 1998; 1479 pages)</li></ul> <div class="mw-heading mw-heading3"><h3 id="Out-of-print_books">Out-of-print books</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Charles_Petzold&action=edit&section=3" title="Edit section: Out-of-print books"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><i>Programming Microsoft Windows with Microsoft Visual Basic .NET</i> (Microsoft Press, 2002; 1303 pages)</li> <li><i>Programming Windows 95, 4th edition</i> (Microsoft Press, 1996; 1100 pages)</li> <li><i>Programming the OS/2 Presentation Manager</i> (Microsoft Press, 1989)</li> <li><i>Programming Windows 3.1, 3rd edition</i> (Microsoft Press, 1992; 983 pages)</li> <li><i>Programming Windows, 2nd edition.</i> (Microsoft Press, 1990)</li> <li><i>Programming the OS/2 Presentation Manager</i> (Ziff-Davis Press, 1994; 934 pages)</li> <li><i>Programming Windows, 1st edition</i> (Microsoft Press, 1988; 852 pages)</li></ul> <div class="mw-heading mw-heading3"><h3 id="Books_that_were_never_published">Books that were never published</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Charles_Petzold&action=edit&section=4" title="Edit section: Books that were never published"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><i>Graphics Programming in Windows</i></li> <li><i>The OS/2 Graphics Programming Interface</i></li></ul> <div class="mw-heading mw-heading3"><h3 id="Contributor">Contributor</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Charles_Petzold&action=edit&section=5" title="Edit section: Contributor"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li>Contributor to <i>Beautiful Code: Leading Programmers Explain How They Think</i>, edited by Andy Oram & Greg Wilson (O'Reilly, 2007)</li> <li>Contributor to <i>Extending DOS</i>, edited by Ray Duncan (2nd edition, Addison Wesley, 1992)</li> <li>Contributor to <i>Microsoft Press Computer Dictionary</i> (Microsoft Press, 1991)</li> <li>Contributor to <i>Extending DOS</i>, edited by Ray Duncan (Addison Wesley, 1990)</li> <li>Contributor to <i>The MS-DOS Encyclopedia</i>, edited by Ray Duncan (Microsoft Press, 1988)<sup id="cite_ref-Duncan_1988_MS-DOS_Encyclopedia_4-0" class="reference"><a href="#cite_note-Duncan_1988_MS-DOS_Encyclopedia-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup></li></ul> <div class="mw-heading mw-heading3"><h3 id="Magazines">Magazines</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Charles_Petzold&action=edit&section=6" title="Edit section: Magazines"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><i>PC Magazine</i> <ul><li>Contributing Editor (1985 to 2005)</li> <li>PC Tutor column (1985 to 1987)</li> <li>Environments column (1987 to 1995)</li></ul></li> <li><i>Microsoft Systems Journal</i> <ul><li>Contributing Editor (1987 to 2000)</li></ul></li> <li><i>Windows Sources</i> <ul><li>Contributing Editor and Columnist (1993)</li></ul></li> <li><i>MSDN Magazine</i> <ul><li>Contributing Editor (2000 to 2014)<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></li></ul></li></ul> <div class="mw-heading mw-heading2"><h2 id="Online_articles">Online articles</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Charles_Petzold&action=edit&section=7" title="Edit section: Online articles"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><i><a rel="nofollow" class="external text" href="http://www.charlespetzold.com/etc/MaxwellMoleculesAndEvolution.html">Maxwell, Molecules, and Evolution</a></i></li> <li><i><a rel="nofollow" class="external text" href="https://web.archive.org/web/20070404053211/http://www.charlespetzold.com/etc/AvenuesOfManhattan/index.html">How Far from True North are the Avenues of Manhattan?</a></i></li> <li><i><a rel="nofollow" class="external text" href="http://msdn.microsoft.com/en-us/magazine/cc301169.aspx">Articles for MSDN magazine</a></i></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=Charles_Petzold&action=edit&section=8" 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 class="citation web cs1"><a rel="nofollow" class="external text" href="http://www.charlespetzold.com/blog/2014/08/New-Book-New-Chapter-in-Life.html">"New Chapter in Life"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">6 July</span> 2015</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=New+Chapter+in+Life&rft_id=http%3A%2F%2Fwww.charlespetzold.com%2Fblog%2F2014%2F08%2FNew-Book-New-Chapter-in-Life.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ACharles+Petzold" class="Z3988"></span></span> </li> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="http://charlespetzold.com/blog/2018/09/RetirementAndRealignment.html">"Retirement and Realignment"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Retirement+and+Realignment&rft_id=http%3A%2F%2Fcharlespetzold.com%2Fblog%2F2018%2F09%2FRetirementAndRealignment.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3ACharles+Petzold" class="Z3988"></span></span> </li> <li id="cite_note-Blog-3"><span class="mw-cite-backlink">^ <a href="#cite_ref-Blog_3-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Blog_3-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-Blog_3-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-Blog_3-3"><sup><i><b>d</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFPetzold" class="citation web cs1">Petzold, Charles. <a rel="nofollow" class="external text" href="http://www.charlespetzold.com/blog/blog.xml">"The Long (Essay) Version"</a><span class="reference-accessdate">. Retrieved <span class="nowrap">2008-08-06</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=The+Long+%28Essay%29+Version&rft.aulast=Petzold&rft.aufirst=Charles&rft_id=http%3A%2F%2Fwww.charlespetzold.com%2Fblog%2Fblog.xml&rfr_id=info%3Asid%2Fen.wikipedia.org%3ACharles+Petzold" class="Z3988"></span></span> </li> <li id="cite_note-Duncan_1988_MS-DOS_Encyclopedia-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-Duncan_1988_MS-DOS_Encyclopedia_4-0">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFZbikowskiAllenBallmerBorman1988" class="citation book cs1"><a href="/wiki/Mark_Zbikowski" title="Mark Zbikowski">Zbikowski, Mark</a>; <a href="/wiki/Paul_Allen" title="Paul Allen">Allen, Paul</a>; <a href="/wiki/Steve_Ballmer" title="Steve Ballmer">Ballmer, Steve</a>; Borman, Reuben; Borman, Rob; Butler, John; Carroll, Chuck; Chamberlain, Mark; Chell, David; Colee, Mike; Courtney, Mike; Dryfoos, Mike; Duncan, Rachel; Eckhardt, Kurt; Evans, Eric; Farmer, Rick; <a href="/wiki/Bill_Gates" title="Bill Gates">Gates, Bill</a>; Geary, Michael; Griffin, Bob; Hogarth, Doug; Johnson, James W.; Kermaani, Kaamel; King, Adrian; Koch, Reed; Landowski, James; Larson, Chris; Lennon, Thomas; Lipkie, Dan; <a href="/wiki/Marc_McDonald" title="Marc McDonald">McDonald, Marc</a>; McKinney, Bruce; Martin, Pascal; Mathers, Estelle; Matthews, Bob; Melin, David; Mergentime, Charles; Nevin, Randy; Newell, Dan; Newell, Tani; Norris, David; O'Leary, Mike; <a href="/wiki/Bob_O%27Rear" title="Bob O'Rear">O'Rear, Bob</a>; Olsson, Mike; Osterman, Larry; Ostling, Ridge; Pai, Sunil; <a href="/wiki/Tim_Paterson" title="Tim Paterson">Paterson, Tim</a>; Perez, Gary; Peters, Chris; <a class="mw-selflink selflink">Petzold, Charles</a>; Pollock, John; <a href="/wiki/Aaron_R._Reynolds" class="mw-redirect" title="Aaron R. Reynolds">Reynolds, Aaron</a>; Rubin, Darryl; Ryan, Ralph; Schulmeisters, Karl; Shah, Rajen; Shaw, Barry; Short, Anthony; Slivka, Ben; Smirl, Jon; Stillmaker, Betty; Stoddard, John; Tillman, Dennis; Whitten, Greg; Yount, Natalie; Zeck, Steve (1988). "Technical advisors". <i>The MS-DOS Encyclopedia: versions 1.0 through 3.2</i>. By Duncan, Ray; Bostwick, Steve; Burgoyne, Keith; Byers, Robert A.; Hogan, Thom; Kyle, Jim; <a href="/wiki/Gordon_Letwin" title="Gordon Letwin">Letwin, Gordon</a>; <a class="mw-selflink selflink">Petzold, Charles</a>; Rabinowitz, Chip; Tomlin, Jim; Wilton, Richard; Wolverton, Van; Wong, William; Woodcock, JoAnne (Completely reworked ed.). Redmond, Washington, USA: <a href="/wiki/Microsoft_Press" title="Microsoft Press">Microsoft Press</a>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/1-55615-049-0" title="Special:BookSources/1-55615-049-0"><bdi>1-55615-049-0</bdi></a>. <a href="/wiki/LCCN_(identifier)" class="mw-redirect" title="LCCN (identifier)">LCCN</a> <a rel="nofollow" class="external text" href="https://lccn.loc.gov/87-21452">87-21452</a>. <a href="/wiki/OCLC_(identifier)" class="mw-redirect" title="OCLC (identifier)">OCLC</a> <a rel="nofollow" class="external text" href="https://search.worldcat.org/oclc/16581341">16581341</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.atitle=Technical+advisors&rft.btitle=The+MS-DOS+Encyclopedia%3A+versions+1.0+through+3.2&rft.place=Redmond%2C+Washington%2C+USA&rft.edition=Completely+reworked&rft.pub=Microsoft+Press&rft.date=1988&rft_id=info%3Aoclcnum%2F16581341&rft_id=info%3Alccn%2F87-21452&rft.isbn=1-55615-049-0&rft.aulast=Zbikowski&rft.aufirst=Mark&rft.au=Allen%2C+Paul&rft.au=Ballmer%2C+Steve&rft.au=Borman%2C+Reuben&rft.au=Borman%2C+Rob&rft.au=Butler%2C+John&rft.au=Carroll%2C+Chuck&rft.au=Chamberlain%2C+Mark&rft.au=Chell%2C+David&rft.au=Colee%2C+Mike&rft.au=Courtney%2C+Mike&rft.au=Dryfoos%2C+Mike&rft.au=Duncan%2C+Rachel&rft.au=Eckhardt%2C+Kurt&rft.au=Evans%2C+Eric&rft.au=Farmer%2C+Rick&rft.au=Gates%2C+Bill&rft.au=Geary%2C+Michael&rft.au=Griffin%2C+Bob&rft.au=Hogarth%2C+Doug&rft.au=Johnson%2C+James+W.&rft.au=Kermaani%2C+Kaamel&rft.au=King%2C+Adrian&rft.au=Koch%2C+Reed&rft.au=Landowski%2C+James&rft.au=Larson%2C+Chris&rft.au=Lennon%2C+Thomas&rft.au=Lipkie%2C+Dan&rft.au=McDonald%2C+Marc&rft.au=McKinney%2C+Bruce&rft.au=Martin%2C+Pascal&rft.au=Mathers%2C+Estelle&rft.au=Matthews%2C+Bob&rft.au=Melin%2C+David&rft.au=Mergentime%2C+Charles&rft.au=Nevin%2C+Randy&rft.au=Newell%2C+Dan&rft.au=Newell%2C+Tani&rft.au=Norris%2C+David&rft.au=O%27Leary%2C+Mike&rft.au=O%27Rear%2C+Bob&rft.au=Olsson%2C+Mike&rft.au=Osterman%2C+Larry&rft.au=Ostling%2C+Ridge&rft.au=Pai%2C+Sunil&rft.au=Paterson%2C+Tim&rft.au=Perez%2C+Gary&rft.au=Peters%2C+Chris&rft.au=Petzold%2C+Charles&rft.au=Pollock%2C+John&rft.au=Reynolds%2C+Aaron&rft.au=Rubin%2C+Darryl&rft.au=Ryan%2C+Ralph&rft.au=Schulmeisters%2C+Karl&rft.au=Shah%2C+Rajen&rft.au=Shaw%2C+Barry&rft.au=Short%2C+Anthony&rft.au=Slivka%2C+Ben&rft.au=Smirl%2C+Jon&rft.au=Stillmaker%2C+Betty&rft.au=Stoddard%2C+John&rft.au=Tillman%2C+Dennis&rft.au=Whitten%2C+Greg&rft.au=Yount%2C+Natalie&rft.au=Zeck%2C+Steve&rfr_id=info%3Asid%2Fen.wikipedia.org%3ACharles+Petzold" class="Z3988"></span> (xix+1570 pages; 26 cm) (NB. This edition was published in 1988 after extensive rework of the withdrawn 1986 first edition by a different team of authors. <a rel="nofollow" class="external autonumber" href="https://www.pcjs.org/pubs/pc/reference/microsoft/mspl13/msdos/encyclopedia/">[1]</a>)</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 class="citation web cs1"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20141025200025if_/http://blogs.msdn.com/b/msdnmagazine/archive/2014/10/01/10561803.aspx">"Charles Petzold Departing"</a>. Archived from the original on 2014-10-25<span class="reference-accessdate">. Retrieved <span class="nowrap">25 October</span> 2014</span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Charles+Petzold+Departing&rft_id=http%3A%2F%2Fblogs.msdn.com%2Fb%2Fmsdnmagazine%2Farchive%2F2014%2F10%2F01%2F10561803.aspx&rfr_id=info%3Asid%2Fen.wikipedia.org%3ACharles+Petzold" class="Z3988"></span><span class="cs1-maint citation-comment"><code class="cs1-code">{{<a href="/wiki/Template:Cite_web" title="Template:Cite web">cite web</a>}}</code>: CS1 maint: unfit URL (<a href="/wiki/Category:CS1_maint:_unfit_URL" title="Category:CS1 maint: unfit URL">link</a>)</span></span> </li> </ol></div></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=Charles_Petzold&action=edit&section=9" title="Edit section: External links"><span>edit</span></a><span 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srcset="//upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/45px-Commons-logo.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/4/4a/Commons-logo.svg/59px-Commons-logo.svg.png 2x" data-file-width="1024" data-file-height="1376" /></span></span></div> <div class="side-box-text plainlist">Wikimedia Commons has media related to <span style="font-weight: bold; font-style: italic;"><a href="https://commons.wikimedia.org/wiki/Category:Charles_Petzold" class="extiw" title="commons:Category:Charles Petzold">Charles Petzold</a></span>.</div></div> </div> <ul><li><a rel="nofollow" class="external text" href="http://www.theannotatedturing.com/">Web site for Petzold's book The Annotated Turing</a></li> <li><a rel="nofollow" class="external text" href="http://www.charlespetzold.com/etc/DoesVisualStudioRotTheMind.html">"Does Visual Studio Rot the Mind?"</a>, transcript of a talk delivered at the NYC .NET Developer’s Group, October 20, 2005</li></ul> <div class="navbox-styles"><style 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href="https://viaf.org/viaf/9999889">VIAF</a></span></li><li><span class="uid"><a rel="nofollow" class="external text" href="https://id.oclc.org/worldcat/entity/E39PBJptTJ8pTP84778w9KTbVC">WorldCat</a></span></li></ul></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">National</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"><ul><li><span class="uid"><a rel="nofollow" class="external text" href="https://d-nb.info/gnd/136449182">Germany</a></span></li><li><span class="uid"><a rel="nofollow" class="external text" href="https://id.loc.gov/authorities/n87854475">United States</a></span></li><li><span class="uid"><a rel="nofollow" class="external text" href="https://catalogue.bnf.fr/ark:/12148/cb134865284">France</a></span></li><li><span class="uid"><a rel="nofollow" class="external text" href="https://data.bnf.fr/ark:/12148/cb134865284">BnF data</a></span></li><li><span class="uid"><a rel="nofollow" class="external text" href="https://id.ndl.go.jp/auth/ndlna/00473005">Japan</a></span></li><li><span class="uid"><a rel="nofollow" class="external text" href="https://aleph.nkp.cz/F/?func=find-c&local_base=aut&ccl_term=ica=xx0012831&CON_LNG=ENG">Czech Republic</a></span></li><li><span class="uid"><a rel="nofollow" class="external text" href="http://data.bibliotheken.nl/id/thes/p100611125">Netherlands</a></span></li><li><span class="uid"><span class="rt-commentedText tooltip tooltip-dotted" title="Petzold, Charles, 1953-"><a rel="nofollow" class="external text" href="https://kopkatalogs.lv/F?func=direct&local_base=lnc10&doc_number=000017929&P_CON_LNG=ENG">Latvia</a></span></span></li><li><span class="uid"><a rel="nofollow" class="external text" href="https://lod.nl.go.kr/resource/KAC200308023">Korea</a></span></li><li><span class="uid"><a rel="nofollow" class="external text" href="https://dbn.bn.org.pl/descriptor-details/9810597514305606">Poland</a></span></li><li><span class="uid"><a rel="nofollow" class="external text" href="http://olduli.nli.org.il/F/?func=find-b&local_base=NLX10&find_code=UID&request=987007424873805171">Israel</a></span></li><li><span class="uid"><a rel="nofollow" class="external text" href="https://opac.kbr.be/LIBRARY/doc/AUTHORITY/14311104">Belgium</a></span></li></ul></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Academics</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"><ul><li><span class="uid"><a rel="nofollow" class="external text" href="https://ci.nii.ac.jp/author/DA03747192?l=en">CiNii</a></span></li></ul></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">People</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"><ul><li><span class="uid"><a rel="nofollow" class="external text" href="https://www.deutsche-digitale-bibliothek.de/person/gnd/136449182">DDB</a></span></li></ul></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Other</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"><ul><li><span class="uid"><a rel="nofollow" class="external text" href="https://www.idref.fr/035652772">IdRef</a></span></li><li><span class="uid"><a rel="nofollow" class="external text" href="https://snaccooperative.org/ark:/99166/w6h572xs">SNAC</a></span></li></ul></div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" 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