Close-up of the interior (specifically, the power supply, on the right) of an Apple <a href="https://en.wikipedia.org/wiki/Macintosh_Plus" class="extiw" title="en:Macintosh Plus">Macintosh Plus</a>.
<a href="//commons.wikimedia.org/wiki/User:Clpo13" title="User:Clpo13">Cody Logan</a>
CC BY-SA 4.0
<span class="int-own-work" lang="en">Own work</span>