Functional diagram of the <a href="https://en.wikipedia.org/wiki/4001" class="extiw" title="en:4001">4001</a> <a href="https://en.wikipedia.org/wiki/CMOS" class="extiw" title="en:CMOS">en:CMOS</a> Quad NOR Gate IC.
<a href="//commons.wikimedia.org/wiki/User:Inductiveload" title="User:Inductiveload">Inductiveload</a>
2008-12-22
<span class="int-own-work" lang="en">Own work</span>