<a href="https://en.wikipedia.org/wiki/Microsoft" id="mw-w" rel="mw:WikiLink" title="Microsoft">Microsoft</a> <a href="https://en.wikipedia.org/wiki/Windows_1.0" id="mw_A" rel="mw:WikiLink" title="Windows 1.0">Windows 1.0</a>, the first graphical personal computer operating environment developed by Microsoft, is released.<sup about="#mwt44" class="mw-ref reference" data-mw='{"name":"ref","attrs":{},"body":{"id":"mw-reference-text-cite_note-7"}}' id="cite_ref-7" rel="dc:references" typeof="mw:Extension/ref"><a href="./November_20#cite_note-7" id="mw_Q" style="counter-reset: mw-Ref 7;"><span class="mw-reflink-text" id="mw_g">[7]</span></a></sup>
<span class="mw-reference-text" id="mw-reference-text-cite_note-7"><cite about="#mwt40" class="citation book cs1" id="CITEREFAdda247_Publications">Adda247 Publications. <a class="external text" href="https://books.google.com/books?id=4treDwAAQBAJ&amp;pg=PA44" id="mwCxc" rel="mw:ExtLink nofollow"><i id="mwCxg">Computer Aptitude For Banking and Insurance eBook</i></a> (English Printed<span id="mwCxk" typeof="mw:Entity"> </span>ed.). Adda247 Publications. p.<span id="mwCxo" typeof="mw:Entity"> </span>44.</cite><span about="#mwt40" class="Z3988" id="mwCxs" title="ctx_ver=Z39.88-2004&amp;rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&amp;rft.genre=book&amp;rft.btitle=Computer+Aptitude+For+Banking+and+Insurance+eBook&amp;rft.pages=44&amp;rft.edition=English+Printed&amp;rft.pub=Adda247+Publications&amp;rft.au=Adda247+Publications&amp;rft_id=https%3A%2F%2Fbooks.google.com%2Fbooks%3Fid%3D4treDwAAQBAJ%26pg%3DPA44&amp;rfr_id=info%3Asid%2Fen.wikipedia.org%3ANovember+20"></span><span about="#mwt40" class="cs1-maint citation-comment" id="mwCxw"><code class="cs1-code" id="mwCx0">{{<a href="./Template:Cite_book" id="mwCx4" rel="mw:WikiLink" title="Template:Cite book">cite book</a>}}</code>:  CS1 maint: numeric names: authors list (<a href="./Category:CS1_maint:_numeric_names:_authors_list" id="mwCx8" rel="mw:WikiLink" title="Category:CS1 maint: numeric names: authors list">link</a>)</span><link about="#mwt40" href="./Category:CS1_maint:_numeric_names:_authors_list" id="mwCyA" rel="mw:PageProp/Category"/></span>