What you consider today &quot;Windows&quot; is actually Windows NT. Dave Cuttler was a lead architect of both NT and VMS.<p><a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Dave_Cutler" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Dave_Cutler</a><p>Cuttler and a core of VMS team exited en masse to work on NT. In fact, he coined the term &quot;WNT&quot; as a play on &quot;VMS&quot;, each letter is a successor to the corresponding one. (c.f. IBM &lt;==&gt; HAL)<p><a href="http:&#x2F;&#x2F;windowsitpro.com&#x2F;windows-client&#x2F;windows-nt-and-vms-rest-story" rel="nofollow">http:&#x2F;&#x2F;windowsitpro.com&#x2F;windows-client&#x2F;windows-nt-and-vms-re...</a>