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HDOS
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<h2 id="commands">Commands</h2> <p>The following list of <a href="/facts/Command_(computing)/zUrvQbFy">commands</a> are supported by HDOS.<a class="footnote-ref" id="fnref:4" href="#fn:4"><sup>4</sup></a> </p> <ul><li>BOOT</li> <li>BYE</li> <li><a href="/facts/Cat_(Unix)/KQPATH6w">CAT</a></li> <li><a href="/facts/Copy_(command)/lC4UI6yN">COPY</a></li> <li><a href="/facts/Date_(command)/LtoSMX4v">DATE</a></li> <li><a href="/facts/Del_(command)/8wLW0H0k">DELETE</a></li> <li>DISMOUNT</li> <li>FLAGS</li> <li><a href="/facts/Help_(command)/AouoTNSR">HELP</a></li> <li>MOUNT</li> <li>ONECOPY</li> <li><a href="/facts/Peripheral_Interchange_Program/98G60nTf">PIP</a></li> <li><a href="/facts/Ren_(command)/qMNSpKv8">RENAME</a></li> <li>RUN</li> <li>SET</li> <li>STAT</li> <li>STATUS</li> <li><a href="/facts/TYPE_(DOS_command)/qREHhkfg">TYPE</a></li> <li><a href="/facts/Ver_(command)/x3Pz6hw2">VER</a></li></ul> <h2 id="versions">Versions</h2> <ul><li>HDOS 1.0 – written in 1978 by J. Gordon Letwin</li> <li>HDOS 1.5 – Gregg Chandler</li> <li>HDOS 1.6 – Gregg Chandler</li> <li>HDOS 2.0 – released in 1980, written by Gregg Chandler, released into the public domain in April 1988</li> <li>HDOS 3.0 – released into the public domain in August 1986</li> <li>HDOS 3.02 – enhanced version by Richard Musgrave</li></ul> <p><a class="footnote-ref" id="fnref:5" href="#fn:5"><sup>5</sup></a> </p> <h2 id="see-also">See also</h2> <ul> <li>Free and open-source software portal</li></ul> <ul><li><a href="/facts/Heathkit/UzElPd6X">Heathkit</a></li> <li><a href="/facts/Zenith_Data_Systems/06d2olCG">Zenith Data Systems</a></li> <li><a href="/facts/List_of_operating_systems/4RXwc2Rf">List of operating systems</a></li></ul> <h2 id="external-links">External links</h2> <ul><li><a href="https://web.archive.org/web/20060624075405/http://computermuseum.li/Testpage/HeathDOS.htm">HeathDOS</a></li> <li><a href="http://delivery.acm.org/10.1145/360000/358070/p188-pechura.pdf?key1=358070&key2=4479237511&coll=&dl=ACM&CFID=15151515&CFTOKEN=6184618#search=%22Heath%20HDOS%22">Michael A. Pechuria, Comparing Two Microcomputer Operating Systems: CP/M and HDOS. Communications of the ACM, March 1983, vol. 26, no. 3.</a></li> <li><a href="http://sebhc.lesbird.com/documentation.html">Society of Eight-Bit Heathkit Computerists</a> <a href="https://web.archive.org/web/20120328024421/http://sebhc.lesbird.com/documentation.html">Archived</a> 2012-03-28 at the <a href="/facts/Wayback_Machine/nmQ3a6JC">Wayback Machine</a> A web site dedicated to preserving the Heathkit 8-bit computers, source listing in PDF form</li></ul> <h2 id="references">References</h2> <ol> <li id="fn:1"><p>"Untitled". InfoWorld. 1980-09-01. p. 17. Retrieved 16 February 2015. <a href="https://books.google.com/books?id=az4EAAAAMBAJ&pg=PT56" target="_blank">https://books.google.com/books?id=az4EAAAAMBAJ&pg=PT56</a> <a href="#fnref:1" class="footnote-back-ref">↩</a></p></li> <li id="fn:2"><p>Needle, David (1982-09-13). "Personal touch: Zenith inherits do-it-yourself Heath fans". InfoWorld. pp. 24–25. Retrieved 29 June 2014. <a href="https://books.google.com/books?id=EDAEAAAAMBAJ&pg=PA24" target="_blank">https://books.google.com/books?id=EDAEAAAAMBAJ&pg=PA24</a> <a href="#fnref:2" class="footnote-back-ref">↩</a></p></li> <li id="fn:3"><p>Wilkinson, Bill (October 19, 1981). "Software interchangeability problems in the 6502 marketplace". InfoWorld. 3 (22). IDG Publications: 16. Archived from the original on April 20, 2023. Retrieved April 19, 2023 – via Google Books. <a href="https://books.google.com/books?id=Gj0EAAAAMBAJ&pg=PA16" target="_blank">https://books.google.com/books?id=Gj0EAAAAMBAJ&pg=PA16</a> <a href="#fnref:3" class="footnote-back-ref">↩</a></p></li> <li id="fn:4"><p>Heath Company. "Software Reference Manual HDOS SYSTEM Chapter 2 General Operations" (PDF). Archived from the original (PDF) on 2017-08-07. Retrieved 2020-02-08. <a href="/wiki/Heath_Company" target="_blank">/wiki/Heath_Company</a> <a href="#fnref:4" class="footnote-back-ref">↩</a></p></li> <li id="fn:5"><p>HeathDOS Archived 2006-06-24 at the Wayback Machine <a href="http://www.computermuseum.li/Testpage/HeathDOS.htm" target="_blank">http://www.computermuseum.li/Testpage/HeathDOS.htm</a> <a href="#fnref:5" class="footnote-back-ref">↩</a></p></li> </ol>