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href="/wiki/Atari_BASIC" title="Atari BASIC">Atari BASIC</a>.</div> <style data-mw-deduplicate="TemplateStyles:r1257001546">.mw-parser-output .infobox-subbox{padding:0;border:none;margin:-3px;width:auto;min-width:100%;font-size:100%;clear:none;float:none;background-color:transparent}.mw-parser-output .infobox-3cols-child{margin:auto}.mw-parser-output .infobox .navbar{font-size:100%}@media screen{html.skin-theme-clientpref-night .mw-parser-output .infobox-full-data:not(.notheme)>div:not(.notheme)[style]{background:#1f1f23!important;color:#f8f9fa}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .infobox-full-data:not(.notheme) div:not(.notheme){background:#1f1f23!important;color:#f8f9fa}}@media(min-width:640px){body.skin--responsive .mw-parser-output .infobox-table{display:table!important}body.skin--responsive .mw-parser-output .infobox-table>caption{display:table-caption!important}body.skin--responsive .mw-parser-output .infobox-table>tbody{display:table-row-group}body.skin--responsive .mw-parser-output .infobox-table tr{display:table-row!important}body.skin--responsive .mw-parser-output .infobox-table th,body.skin--responsive .mw-parser-output .infobox-table td{padding-left:inherit;padding-right:inherit}}</style><table class="infobox vevent"><caption class="infobox-title summary">Atari Microsoft BASIC</caption><tbody><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Programmer" title="Programmer">Developer(s)</a></th><td class="infobox-data"><a href="/wiki/Microsoft" title="Microsoft">Microsoft</a>, <a href="/wiki/Atari,_Inc." title="Atari, Inc.">Atari, Inc.</a></td></tr><tr style="display: none;"><td colspan="2" class="infobox-full-data"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1257001546"></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Software_release_life_cycle" title="Software release life cycle">Final release</a></th><td class="infobox-data"><div style="margin:0px;">2.0 / 1982<span class="noprint">; 43 years ago</span><span style="display:none"> (<span class="bday dtstart published updated">1982</span>)</span></div></td></tr><tr style="display:none"><td colspan="2"> </td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Computing_platform" title="Computing platform">Platform</a></th><td class="infobox-data"><a href="/wiki/Atari_8-bit_computers" title="Atari 8-bit computers">Atari 8-bit computers</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/File_size" title="File size">Size</a></th><td class="infobox-data">27 KB</td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Software_categories#Categorization_approaches" title="Software categories">Type</a></th><td class="infobox-data"><a href="/wiki/Microsoft_BASIC" title="Microsoft BASIC">Microsoft BASIC</a></td></tr><tr><th scope="row" class="infobox-label" style="white-space: nowrap;"><a href="/wiki/Software_license" title="Software license">License</a></th><td class="infobox-data">Copyright © 1981, 1982 Microsoft Corp. <a href="/wiki/Proprietary_software" title="Proprietary software">Proprietary</a></td></tr></tbody></table> <p>The <i><b>Atari Microsoft BASIC</b></i> and <i><b>Atari Microsoft BASIC II</b></i> variants of the <a href="/wiki/MOS_6502" class="mw-redirect" title="MOS 6502">6502</a>-version of <a href="/wiki/Microsoft_BASIC" title="Microsoft BASIC">Microsoft BASIC</a> <a href="/wiki/Porting" title="Porting">ported</a> to the <a href="/wiki/Atari_8-bit_computers" title="Atari 8-bit computers">Atari 8-bit computers</a>. The first version, released 1981, required 32 KB of <a href="/wiki/Random_access_memory" class="mw-redirect" title="Random access memory">RAM</a> and was supplied on <a href="/wiki/Floppy_disk" title="Floppy disk">floppy disk</a>. The second version, released the next year, had most of the code on a <a href="/wiki/ROM_cartridge" title="ROM cartridge">ROM cartridge</a> with additional functions on an optional floppy. </p><p>Atari Microsoft BASIC was highly compatible with contemporary BASICs like <a href="/wiki/Applesoft_BASIC" title="Applesoft BASIC">Applesoft BASIC</a> and <a href="/wiki/Commodore_BASIC" title="Commodore BASIC">Commodore BASIC</a>, in contrast to their own <a href="/wiki/Atari_BASIC" title="Atari BASIC">Atari BASIC</a> which was a somewhat different dialect and incompatible in many ways. Like Atari BASIC, Atari Microsoft BASIC included a number of new commands and features to take advantage of the Atari platform. These were only partially compatible with the similar features of Atari BASIC. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="History">History</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Atari_Microsoft_BASIC&action=edit&section=1" title="Edit section: History"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1251242444">.mw-parser-output .ambox{border:1px solid #a2a9b1;border-left:10px solid #36c;background-color:#fbfbfb;box-sizing:border-box}.mw-parser-output .ambox+link+.ambox,.mw-parser-output .ambox+link+style+.ambox,.mw-parser-output .ambox+link+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+style+.ambox,.mw-parser-output .ambox+.mw-empty-elt+link+link+.ambox{margin-top:-1px}html body.mediawiki .mw-parser-output .ambox.mbox-small-left{margin:4px 1em 4px 0;overflow:hidden;width:238px;border-collapse:collapse;font-size:88%;line-height:1.25em}.mw-parser-output .ambox-speedy{border-left:10px solid #b32424;background-color:#fee7e6}.mw-parser-output .ambox-delete{border-left:10px solid #b32424}.mw-parser-output .ambox-content{border-left:10px solid #f28500}.mw-parser-output .ambox-style{border-left:10px solid #fc3}.mw-parser-output .ambox-move{border-left:10px solid #9932cc}.mw-parser-output .ambox-protection{border-left:10px solid #a2a9b1}.mw-parser-output .ambox .mbox-text{border:none;padding:0.25em 0.5em;width:100%}.mw-parser-output .ambox .mbox-image{border:none;padding:2px 0 2px 0.5em;text-align:center}.mw-parser-output .ambox .mbox-imageright{border:none;padding:2px 0.5em 2px 0;text-align:center}.mw-parser-output .ambox .mbox-empty-cell{border:none;padding:0;width:1px}.mw-parser-output .ambox .mbox-image-div{width:52px}@media(min-width:720px){.mw-parser-output .ambox{margin:0 10%}}@media print{body.ns-0 .mw-parser-output .ambox{display:none!important}}</style><table class="box-Unreferenced plainlinks metadata ambox ambox-content ambox-Unreferenced" role="presentation"><tbody><tr><td class="mbox-image"><div class="mbox-image-div"><span typeof="mw:File"><a href="/wiki/File:Question_book-new.svg" class="mw-file-description"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/50px-Question_book-new.svg.png" decoding="async" width="50" height="39" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/75px-Question_book-new.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/99/Question_book-new.svg/100px-Question_book-new.svg.png 2x" data-file-width="512" data-file-height="399" /></a></span></div></td><td class="mbox-text"><div class="mbox-text-span">This section <b>does not <a href="/wiki/Wikipedia:Citing_sources" title="Wikipedia:Citing sources">cite</a> any <a href="/wiki/Wikipedia:Verifiability" title="Wikipedia:Verifiability">sources</a></b>.<span class="hide-when-compact"> Please help <a href="/wiki/Special:EditPage/Atari_Microsoft_BASIC" title="Special:EditPage/Atari Microsoft BASIC">improve this section</a> by <a href="/wiki/Help:Referencing_for_beginners" title="Help:Referencing for beginners">adding citations to reliable sources</a>. Unsourced material may be challenged and <a href="/wiki/Wikipedia:Verifiability#Burden_of_evidence" title="Wikipedia:Verifiability">removed</a>.<br /><small><span class="plainlinks"><i>Find sources:</i> <a rel="nofollow" class="external text" href="https://www.google.com/search?as_eq=wikipedia&q=%22Atari+Microsoft+BASIC%22">"Atari Microsoft BASIC"</a> – <a rel="nofollow" class="external text" href="https://www.google.com/search?tbm=nws&q=%22Atari+Microsoft+BASIC%22+-wikipedia&tbs=ar:1">news</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?&q=%22Atari+Microsoft+BASIC%22&tbs=bkt:s&tbm=bks">newspapers</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.google.com/search?tbs=bks:1&q=%22Atari+Microsoft+BASIC%22+-wikipedia">books</a> <b>·</b> <a rel="nofollow" class="external text" href="https://scholar.google.com/scholar?q=%22Atari+Microsoft+BASIC%22">scholar</a> <b>·</b> <a rel="nofollow" class="external text" href="https://www.jstor.org/action/doBasicSearch?Query=%22Atari+Microsoft+BASIC%22&acc=on&wc=on">JSTOR</a></span></small></span> <span class="date-container"><i>(<span class="date">October 2019</span>)</i></span><span class="hide-when-compact"><i> (<small><a href="/wiki/Help:Maintenance_template_removal" title="Help:Maintenance template removal">Learn how and when to remove this message</a></small>)</i></span></div></td></tr></tbody></table> <p>When Microsoft ported their originally <a href="/wiki/Intel_8080" title="Intel 8080">Intel 8080</a>-based BASIC to the 6502, they took the time to expand the <a href="/wiki/Floating-point_arithmetic" title="Floating-point arithmetic">floating-point</a> format from the original 32-bit format to an optional 40-bit format for improved accuracy. Both versions could be compiled from the same code by providing compiler flags; if the 32-bit format used the resulting code was just under 8 KB in length, if the 40-bit format was used, it was closer to 9 KB. </p><p>The Atari 8-bit home computers were designed with a slot for an 8 <a href="/wiki/Kilobyte" title="Kilobyte">KB</a> <a href="/wiki/ROM_cartridge" title="ROM cartridge">ROM cartridge</a>. Atari's programmers struggled to fit Microsoft's BASIC into a single cartridge while also adding features to take advantage of the platform. In the summer of 1978, Atari decided to outsource the porting effort so that BASIC would be ready in time for the 1979 launch of the system, and this led them to <a href="/wiki/Shepardson_Microsystems" title="Shepardson Microsystems">Shepardson Microsystems</a> Inc. (SMI). SMI quickly decided the job was impossible, and instead proposed creating an entirely new version of BASIC. This became <a href="/wiki/Atari_BASIC" title="Atari BASIC">Atari BASIC</a> and was released with the Atari 400 and 800 in 1979.<sup id="cite_ref-atari_1-0" class="reference"><a href="#cite_note-atari-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </p><p>Atari continued working with the MS code and released a version of it on <a href="/wiki/Floppy_disk" title="Floppy disk">floppy disk</a> in 1981. In addition to the extended range of standard commands in MS compared to Atari BASIC, the new version added a number of additional commands for graphics and sound and other features of the platform. It also included integer variables and a complete integer math package<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>a<span class="cite-bracket">]</span></a></sup> which offered improved performance. However, as it required at least 32 KB of RAM and only ran from a disk, it was never particularly popular. </p><p>A second release, Atari Microsoft BASIC II, moved most of the code onto an expanded 16 KB cartridge and placed an additional 11 KB of more rarely used code on disk, meaning that many programs intended for cross-platform use could now be run from the cartridge alone. Released in 1982, BASIC II also saw little real-world use. </p> <div class="mw-heading mw-heading2"><h2 id="Details">Details</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Atari_Microsoft_BASIC&action=edit&section=2" title="Edit section: Details"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>The underlying interpreter was based on the same 9 KB <a href="/wiki/MOS_6502" class="mw-redirect" title="MOS 6502">MOS 6502</a> code that also formed the basis of <a href="/wiki/Commodore_BASIC" title="Commodore BASIC">Commodore BASIC</a> and <a href="/wiki/AppleSoft_BASIC" class="mw-redirect" title="AppleSoft BASIC">AppleSoft BASIC</a>, and was largely compatible with them. A key aspect of this was the string handling system, which was based on the same code as those platforms. In contrast, Atari BASIC used an entirely different system that treated strings as arrays of characters and was not compatible with, nor easily ported from, most other systems. </p><p>It retained the original 40-bit format <a href="/wiki/Floating-point_arithmetic" title="Floating-point arithmetic">floating-point arithmetic</a> library that replaced the notoriously slow one in the system's <a href="/wiki/Operating_system" title="Operating system">operating system</a> ROMs, and thus ran math code at the same speed as other platforms, and much faster than Atari BASIC. It also included an additional <a href="/wiki/Integer" title="Integer">integer</a> math package for added performance. The integer math system was triggered when the assignment was to an integer variable, or the literal values were all integers. If either was not true, the integer values would be converted to floating-point, use the floating-point code for the calculation, and then be converted back to integer for storage. </p> <table class="wikitable"> <caption>Examples </caption> <tbody><tr> <th>Division with two integers </th> <th>Division with integer and floating-point </th></tr> <tr> <td> <pre><style data-mw-deduplicate="TemplateStyles:r1239335663">.mw-parser-output .mw-tmpl-kbd{background:#EEE;color:var(--color-base)}@media screen{html.skin-theme-clientpref-night .mw-parser-output .mw-tmpl-kbd{background:#171a1d}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .mw-tmpl-kbd{background:#171a1d}}</style><kbd class="mw-tmpl-kbd" style="padding-left:0.2em; padding-right:0.2em;">PRINT 3/2</kbd> <samp style="padding-left:0.4em; padding-right:0.4em; color:var( --color-subtle, #666666);">1</samp> </pre> </td> <td> <pre><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239335663"><kbd class="mw-tmpl-kbd" style="padding-left:0.2em; padding-right:0.2em;">PRINT 3/2.0</kbd> <samp style="padding-left:0.4em; padding-right:0.4em; color:var( --color-subtle, #666666);">1.5</samp> </pre> </td></tr></tbody></table> <p>Another notable performance-related improvement was related to <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">FOR...NEXT</code> loops. Atari BASIC performed these by placing the line number of the <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">FOR</code> on the execution stack, so when the associated <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">NEXT</code> was encountered it could find which line to loop back to. In contrast, MS BASIC had always placed the memory location of that line on the stack, allowing it to jump back to the <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">FOR</code> without having to search through the entire program for the matching line. This oddity in Atari BASIC is one of the primary reasons for its slow performance, and because this was not true in Atari Microsoft BASIC, it generally ran much faster than Atari BASIC. </p><p>In contrast to Atari BASIC, which parsed and tokenized entire lines when they were typed in, MS BASICs only partially tokenized the <a href="/wiki/Source_code" title="Source code">source code</a>. When a line was entered, the line number was converted from ASCII to a 16-bit integer, the first program statement was tokenized to a single-byte value, and then the rest of the line was left as text format. The last character had its high-bit set to indicate the end of the line. Depending on the use-case, Atari BASIC's complete tokenization of the line could result in less memory being used to store the program. This difference also meant that many syntax errors would only be noticed at runtime in the MS code, unlike the Atari version where the entire line was checked at edit time. In theory, edit-time compilation should have made Atari BASIC much faster than MS, which re-tokenizes the line every time it is encountered, but this advantage was washed away by the other performance issues noted above. </p><p>MS BASIC did not include a system for entering short forms of keywords, unlike Atari BASIC which allowed them to be abbreviated with a period during entry. When the program was <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">LIST</code>ed, the keywords would be expanded out. Commodore's version which added control-character completion to the same end. </p><p>Atari Microsoft BASIC added a number of new features to take advantage of the platform. One interesting addition is <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">AFTER (600) GOTO 100</code> which waited for the specified number of "jiffies", 1/60ths of a second, and then performed the <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">FOR</code>. It also included the <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">WAIT</code> which instead paused while awaiting a memory address to change before proceeding to the next line. <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">WAIT</code> had been part of the earliest versions of MS BASIC but not widely used. </p><p>Atari Microsoft BASIC included most of the graphics and sound commands from Atari BASIC. Oddly, the original <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">DRAWTO</code> was merged into <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">PLOT</code> using the optional <code class="mw-highlight mw-highlight-lang-text mw-content-ltr" style="" dir="ltr">PLOT...TO...</code> format. This means graphics code for Atari BASIC was not compatible. Atari Microsoft BASIC added a number of additional commands for handling <a href="/wiki/Player/missile_graphics" class="mw-redirect" title="Player/missile graphics">player/missile graphics</a> and user-defined <a href="/wiki/Character_set" class="mw-redirect" title="Character set">character sets</a> that were not available in Atari BASIC. </p><p><i>Atari Microsoft BASIC</i> came in two packages: </p> <ul><li><a href="/wiki/Floppy_disk" title="Floppy disk">Floppy disk</a> – CX8126</li> <li><a href="/wiki/ROM_cartridge" title="ROM cartridge">ROM cartridge</a> – RX8035. Since the cartridge could only hold 16 KB, the remaining 11 KB file was included on an "extension" disk. The cartridge version was called <i>Atari Microsoft BASIC II</i>.</li></ul> <p>Although more feature-filled than Atari BASIC, Microsoft BASIC never had the popularity that Atari BASIC had. The biggest problems were: </p> <ul><li>increased memory needed (at least 32 KB)</li> <li>disk drive required</li> <li>performance (faster than Atari BASIC, but slower than <a href="/wiki/Turbo-Basic_XL" class="mw-redirect" title="Turbo-Basic XL">Turbo-Basic XL</a> and <a href="/wiki/Optimized_Systems_Software" title="Optimized Systems Software">BASIC XL</a>)</li> <li>not compatible with Atari BASIC</li> <li>added cost</li></ul> <p>The cartridge version eliminated the first two requirements, but a disk drive was needed for all of its features. </p> <div class="mw-heading mw-heading2"><h2 id="Notes">Notes</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=Atari_Microsoft_BASIC&action=edit&section=3" title="Edit section: Notes"><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-lower-alpha"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-2">^</a></b></span> <span class="reference-text">In contrast to Commodore's versions of MS BASIC, which included integer variables but performed mathematics by converting the values to floating-point format.</span> </li> </ol></div></div> <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=Atari_Microsoft_BASIC&action=edit&section=4" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239543626"><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-atari-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-atari_1-0">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output 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(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.atariarchives.org/iad/introduction.php">"Inside Atari DOS - Introduction"</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=unknown&rft.btitle=Inside+Atari+DOS+-+Introduction&rft_id=http%3A%2F%2Fwww.atariarchives.org%2Fiad%2Fintroduction.php&rfr_id=info%3Asid%2Fen.wikipedia.org%3AAtari+Microsoft+BASIC" class="Z3988"></span></span> </li> </ol></div></div> <style data-mw-deduplicate="TemplateStyles:r1239549316">.mw-parser-output .refbegin{margin-bottom:0.5em}.mw-parser-output .refbegin-hanging-indents>ul{margin-left:0}.mw-parser-output .refbegin-hanging-indents>ul>li{margin-left:0;padding-left:3.2em;text-indent:-3.2em}.mw-parser-output .refbegin-hanging-indents ul,.mw-parser-output .refbegin-hanging-indents ul 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href="/wiki/Special:EditPage/Template:BASIC" title="Special:EditPage/Template:BASIC"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Dialects_of_the_BASIC_programming_language_(list)202" style="font-size:114%;margin:0 4em">Dialects of the <a href="/wiki/BASIC" title="BASIC">BASIC</a> programming language (<a href="/wiki/List_of_BASIC_dialects" title="List of BASIC dialects">list</a>)</div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Classic</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" 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/Microsoft" title="Microsoft">Microsoft</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/Microsoft_BASIC" title="Microsoft BASIC">Microsoft BASIC</a></li> <li>TRS-80 BASICs (<a href="/wiki/Level_I_BASIC" title="Level I BASIC">Level I</a>, <a href="/wiki/TRS-80_Level_II_BASIC" class="mw-redirect" title="TRS-80 Level II BASIC">Level II/III</a>)</li> <li>Thomson <a href="/wiki/Microsoft_Basic_1.0" title="Microsoft Basic 1.0">BASIC 1.0</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Texas_Instruments" title="Texas Instruments">Texas Instruments</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/TI-BASIC" title="TI-BASIC">TI-BASIC (calculators)</a></li> <li><a href="/wiki/TI_Extended_BASIC" class="mw-redirect" title="TI Extended BASIC">TI Extended BASIC</a> (aka XBasic)</li> <li><a href="/wiki/TI-BASIC_83" title="TI-BASIC 83">TI-BASIC 83</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Hewlett-Packard" title="Hewlett-Packard">Hewlett-Packard</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/HP_Time-Shared_BASIC" title="HP Time-Shared BASIC">HP Time-Shared BASIC</a></li> <li><a href="/wiki/Rocky_Mountain_BASIC" title="Rocky Mountain BASIC">Rocky Mountain BASIC</a></li> <li><a href="/wiki/HP_Time-Shared_BASIC" title="HP Time-Shared BASIC">HP Basic</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Locomotive_Software" title="Locomotive Software">Locomotive Software</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/Locomotive_BASIC" title="Locomotive BASIC">Locomotive BASIC</a></li> <li><a href="/wiki/Mallard_BASIC" title="Mallard BASIC">Mallard BASIC</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Microcomputer" title="Microcomputer">Microcomputers</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/Atom_BASIC" class="mw-redirect" title="Atom BASIC">Atom BASIC</a></li> <li><a href="/wiki/Integer_BASIC" title="Integer BASIC">Integer BASIC</a></li> <li><a href="/wiki/North_Star_BASIC" title="North Star BASIC">North Star BASIC</a></li> <li><a href="/wiki/SCELBAL" title="SCELBAL">SCELBAL</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Minicomputer" title="Minicomputer">Minicomputers</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/BASIC-11" title="BASIC-11">BASIC-11</a></li> <li><a href="/wiki/Business_Basic" title="Business Basic">Business Basic</a> (<a href="/wiki/B32_Business_Basic" title="B32 Business Basic">B32</a>, <a href="/wiki/Data_General_Business_Basic" title="Data General Business Basic">Data General</a>)</li> <li><a href="/wiki/Data_General_Extended_BASIC" title="Data General Extended BASIC">Data General Extended BASIC</a></li> <li><a href="/wiki/Southampton_BASIC_System" title="Southampton BASIC System">Southampton BASIC System</a></li> <li><a href="/wiki/Wang_BASIC" title="Wang BASIC">Wang BASIC</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Time-sharing" title="Time-sharing">Time-sharing</a> computers</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/BASIC-PLUS" title="BASIC-PLUS">BASIC-PLUS</a></li> <li><a href="/w/index.php?title=Extra!_Basic_Macro_Language&action=edit&redlink=1" class="new" title="Extra! Basic Macro Language (page does not exist)">Extra! Basic Macro Language</a></li> <li><a href="/wiki/VSI_BASIC_for_OpenVMS" title="VSI BASIC for OpenVMS">VSI BASIC for OpenVMS</a></li> <li><a href="/wiki/SUPER_BASIC" title="SUPER BASIC">SUPER BASIC</a></li> <li><a href="/wiki/CALL/360:BASIC" title="CALL/360:BASIC">CALL/360:BASIC</a></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-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/AlphaBasic" title="AlphaBasic">AlphaBasic</a></li> <li><a href="/wiki/Astro_BASIC" class="mw-redirect" title="Astro BASIC">Astro BASIC</a></li> <li><a href="/wiki/BASICODE" title="BASICODE">BASICODE</a></li> <li><a href="/wiki/Business_application_language" title="Business application language">BAL</a></li> <li><a href="/wiki/Casio_BASIC" title="Casio BASIC">Casio BASIC</a></li> <li><a href="/wiki/CBASIC" title="CBASIC">CBASIC</a></li> <li><a href="/wiki/PBASIC" title="PBASIC">PBASIC</a></li> <li><a href="/wiki/SDS_BASIC" title="SDS BASIC">SDS BASIC</a></li> <li><a href="/wiki/Tiny_BASIC" title="Tiny BASIC">Tiny BASIC</a></li> <li><a href="/wiki/UBASIC" title="UBASIC">UBASIC</a></li> <li><a href="/wiki/ZBasic" title="ZBasic">ZBasic</a></li> <li><a href="/w/index.php?title=ETBASIC&action=edit&redlink=1" class="new" title="ETBASIC (page does not exist)">ETBASIC</a><span class="noprint" style="font-size:85%; font-style: normal;"> [<a href="https://zh.wikipedia.org/wiki/ETBASIC" class="extiw" title="zh:ETBASIC">zh</a>]</span></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/BASIC_extension" title="BASIC extension">Extenders</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/BASIC_8" title="BASIC 8">BASIC 8</a></li> <li>Graphics BASIC</li> <li><a href="/wiki/Simons%27_BASIC" title="Simons' BASIC">Simons' BASIC</a></li> <li><a href="/wiki/Super_Expander" title="Super Expander">Super Expander</a></li> <li><a href="/wiki/Super_Expander_64" title="Super Expander 64">Super Expander 64</a></li> <li><a href="/wiki/YS_MegaBasic" title="YS MegaBasic">YS MegaBasic</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/Procedural_programming" title="Procedural programming">Procedure</a>-<br />oriented</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" 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/Proprietary_software" title="Proprietary software">Proprietary</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/AmigaBASIC" class="mw-redirect" title="AmigaBASIC">AmigaBASIC</a></li> <li><a href="/wiki/AMOS_(programming_language)" title="AMOS (programming language)">AMOS BASIC</a></li> <li><a href="/wiki/ASIC_programming_language" title="ASIC programming language">ASIC</a></li> <li><a href="/wiki/BasicX" title="BasicX">BasicX</a></li> <li><a href="/wiki/Beta_BASIC" title="Beta BASIC">Beta BASIC</a></li> <li><a href="/wiki/FutureBASIC" title="FutureBASIC">FutureBASIC</a></li> <li><a href="/wiki/GRASS_(programming_language)" title="GRASS (programming language)">GRASS</a></li> <li><a href="/wiki/Liberty_BASIC" title="Liberty BASIC">Liberty BASIC</a></li> <li><a href="/wiki/LSE_(programming_language)" title="LSE (programming language)">LSE</a></li> <li><a href="/wiki/MapBasic" title="MapBasic">MapBasic</a></li> <li><a href="/wiki/Mobile_BASIC" title="Mobile BASIC">Mobile BASIC</a></li> <li><a href="/wiki/OWBasic" title="OWBasic">OWBasic</a></li> <li><a href="/wiki/PowerBASIC" title="PowerBASIC">PowerBASIC</a></li> <li><a href="/wiki/PureBasic" title="PureBasic">PureBasic</a></li> <li><a href="/wiki/Petit_Computer" title="Petit Computer">SmileBASIC</a></li> <li><a href="/wiki/Tiger-BASIC" title="Tiger-BASIC">Tiger-BASIC</a></li> <li><a href="/wiki/True_BASIC" title="True BASIC">True BASIC</a></li> <li><a href="/wiki/Turbo_Basic" class="mw-redirect" title="Turbo Basic">Turbo Basic</a></li> <li><a href="/wiki/WordBASIC" title="WordBASIC">WordBASIC</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Free_and_open_source" class="mw-redirect" title="Free and open source">Free and<br />open source</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/Basic-256" title="Basic-256">Basic-256</a></li> <li><a href="/wiki/Basic4GL" title="Basic4GL">Basic4GL</a></li> <li><a href="/wiki/BBC_BASIC#Acorn_Archimedes_(RISC_OS)" title="BBC BASIC">BBC BASIC V</a></li> <li><a href="/wiki/The_Game_Creators" title="The Game Creators">DarkBASIC</a></li> <li><a href="/wiki/Euphoria_(programming_language)" title="Euphoria (programming language)">Euphoria</a></li> <li><a href="/wiki/Hindawi_Programming_System" title="Hindawi Programming System">Indic BASIC</a></li> <li><a href="/wiki/Open_Programming_Language" title="Open Programming Language">Open Programming Language</a></li> <li><a href="/wiki/SdlBasic" title="SdlBasic">SdlBasic</a></li> <li><a href="/wiki/SmallBASIC" title="SmallBASIC">SmallBASIC</a></li> <li><a href="/wiki/QB64" title="QB64">QB64</a></li> <li><a href="/wiki/WxBasic" title="WxBasic">wxBasic</a></li> <li><a href="/wiki/XBasic" title="XBasic">XBasic</a></li> <li><a href="/wiki/XBLite" title="XBLite">Xblite</a></li> <li><a href="/wiki/Yabasic" title="Yabasic">Yabasic</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">With <a href="/wiki/Object-oriented_programming" title="Object-oriented programming">object</a><br />extensions</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" 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/Proprietary_software" title="Proprietary software">Proprietary</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/AutoIt" title="AutoIt">AutoIt</a></li> <li><a href="/wiki/Chipmunk_Basic" title="Chipmunk Basic">Chipmunk Basic</a></li> <li><a href="/wiki/GLBasic" title="GLBasic">GLBasic</a></li> <li><a href="/wiki/LotusScript" title="LotusScript">LotusScript</a></li> <li><a href="/wiki/Morfik" title="Morfik">Morfik</a></li> <li><a href="/wiki/PowerBASIC" title="PowerBASIC">PowerBASIC</a></li> <li>ProvideX</li> <li>Run BASIC</li> <li><a href="/wiki/Visual_Basic_for_Applications" title="Visual Basic for Applications">VBA</a></li> <li><a href="/wiki/VBScript" title="VBScript">VBScript</a></li> <li>VB 5 for <a href="/wiki/Microsoft_Excel" title="Microsoft Excel">Microsoft Excel</a> 5.0 <ul><li><a href="/wiki/Visual_Studio_Tools_for_Office" title="Visual Studio Tools for Office">VSTO</a></li> <li><a href="/wiki/Visual_Studio_Tools_for_Applications" title="Visual Studio Tools for Applications">VSTA</a></li></ul></li> <li><a href="/wiki/Embedded_Visual_Basic" title="Embedded Visual Basic">Embedded Visual Basic</a></li> <li>WinWrap Basic</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Free_and_open_source" class="mw-redirect" title="Free and open source">Free and<br />open source</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/Blitz_BASIC" title="Blitz BASIC">BlitzMax</a></li> <li><a href="/wiki/FreeBASIC" title="FreeBASIC">FreeBASIC</a></li> <li><a href="/wiki/Microsoft_Small_Basic" title="Microsoft Small Basic">Microsoft Small Basic</a></li> <li><a href="/wiki/Mono_(software)" title="Mono (software)">Mono-Basic</a></li> <li><a href="/wiki/OpenOffice_Basic" title="OpenOffice Basic">OpenOffice Basic</a></li> <li>ScriptBasic</li> <li><a href="/wiki/Roslyn_(compiler)" title="Roslyn (compiler)">Roslyn</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Rapid_application_development" title="Rapid application development">RAD</a><br /><a href="/wiki/GUI_designer" class="mw-redirect" title="GUI designer">designers</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/Proprietary_software" title="Proprietary software">Proprietary</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/CA-Realizer" title="CA-Realizer">CA-Realizer</a></li> <li><a href="/wiki/Visual_Basic_(classic)" title="Visual Basic (classic)">Visual Basic (classic)</a></li> <li><a href="/wiki/NS_Basic" title="NS Basic">NS Basic</a></li> <li><a href="/wiki/RapidQ" title="RapidQ">RapidQ</a></li> <li><a href="/wiki/Visual_Basic_(.NET)" title="Visual Basic (.NET)">Visual Basic .NET</a> (<a href="/wiki/Mercury_(RemObjects_BASIC_programming_language)" title="Mercury (RemObjects BASIC programming language)">Mercury</a>)</li> <li><a href="/wiki/Xojo" title="Xojo">Xojo</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Free_and_open_source" class="mw-redirect" title="Free and open source">Free and<br />open source</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>B4X (<a href="/wiki/Basic4android" title="Basic4android">Basic4android</a>, <a href="/wiki/Basic4ppc" title="Basic4ppc">Basic4ppc</a>)</li> <li><a href="/wiki/Gambas" title="Gambas">Gambas</a></li> <li><a href="/wiki/FreeBASIC" title="FreeBASIC">WinFBE, Visual FB Editor</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Defunct</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Altair_BASIC" title="Altair BASIC">Altair BASIC</a></li> <li><a href="/wiki/Applesoft_BASIC" title="Applesoft BASIC">Applesoft BASIC</a></li> <li><a href="/wiki/Apple_Business_BASIC" title="Apple Business BASIC">Apple Business BASIC</a></li> <li><a href="/wiki/Atari_BASIC" title="Atari BASIC">Atari BASIC</a></li> <li><a class="mw-selflink selflink">Atari Microsoft BASIC</a></li> <li><a href="/wiki/Atari_ST_BASIC" title="Atari ST BASIC">Atari ST BASIC</a></li> <li><a href="/wiki/BASIC_A%2B" title="BASIC A+">BASIC A+</a></li> <li><a href="/wiki/Optimized_Systems_Software#BASIC_XE" title="Optimized Systems Software">BASIC XE</a></li> <li><a href="/wiki/Optimized_Systems_Software#BASIC_XL" title="Optimized Systems Software">BASIC XL</a></li> <li><a href="/wiki/BASIC_Programming" title="BASIC Programming"><i>BASIC Programming</i> (Atari 2600)</a></li> <li><a href="/wiki/BBC_BASIC" title="BBC BASIC">BBC BASIC</a></li> <li><a href="/wiki/Benton_Harbor_BASIC" title="Benton Harbor BASIC">Benton Harbor BASIC</a></li> <li><a href="/wiki/Chinese_BASIC" title="Chinese BASIC">Chinese BASIC</a></li> <li><a href="/wiki/Commodore_BASIC" title="Commodore BASIC">Commodore BASIC</a></li> <li><a href="/wiki/Color_BASIC" title="Color BASIC">Color BASIC</a></li> <li><a href="/wiki/Dartmouth_BASIC" title="Dartmouth BASIC">Dartmouth BASIC</a></li> <li><a href="/wiki/Disk_Extended_Color_BASIC" title="Disk Extended Color BASIC">Disk Extended Color BASIC</a></li> <li><a href="/wiki/Extended_Color_BASIC" title="Extended Color BASIC">Extended Color BASIC</a></li> <li><a href="/wiki/Family_BASIC" title="Family BASIC">Family BASIC</a></li> <li><a href="/wiki/GFA_BASIC" title="GFA BASIC">GFA BASIC</a></li> <li><a href="/wiki/GW-BASIC" title="GW-BASIC">GW-BASIC</a></li> <li><a href="/wiki/IBM_BASIC" title="IBM BASIC">IBM BASIC</a></li> <li><a href="/wiki/JR-BASIC" title="JR-BASIC">JR-BASIC</a></li> <li><a href="/wiki/MacBASIC" title="MacBASIC">MacBASIC</a></li> <li><a href="/wiki/MBASIC" title="MBASIC">MBASIC</a></li> <li><a href="/wiki/MSX_BASIC" title="MSX BASIC">MSX BASIC</a></li> <li><a href="/wiki/MS_BASIC_for_Macintosh" title="MS BASIC for Macintosh">MS BASIC for Macintosh</a></li> <li><a href="/wiki/QBasic" title="QBasic">QBasic</a></li> <li><a href="/wiki/QuickBASIC" title="QuickBASIC">QuickBASIC</a></li> <li><a href="/wiki/S-BASIC" title="S-BASIC">S-BASIC</a></li> <li><a href="/wiki/Sinclair_BASIC" title="Sinclair BASIC">Sinclair BASIC</a></li> <li><a href="/wiki/STOS_BASIC" title="STOS BASIC">STOS BASIC</a></li> <li><a href="/wiki/SuperBASIC" title="SuperBASIC">SuperBASIC</a></li> <li><a href="/wiki/TI_BASIC_(TI_99/4A)" title="TI BASIC (TI 99/4A)">TI BASIC (TI 99/4A)</a></li> <li><a href="/wiki/Turbo-BASIC_XL" title="Turbo-BASIC XL">Turbo-BASIC XL</a></li> <li><a href="/wiki/Vilnius_BASIC" title="Vilnius BASIC">Vilnius BASIC</a></li></ul> </div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?useformat=desktop&type=1x1&usesul3=0" 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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