side view of <a href="https://en.wikipedia.org/wiki/19-inch_rack" class="extiw" title="w:19-inch rack">rack-mounted</a> DEC <a href="https://en.wikipedia.org/wiki/PDP-8" class="extiw" title="w:PDP-8">PDP-8</a> serial number 85, delivered to the <a href="https://en.wikipedia.org/wiki/University_of_Iowa" class="extiw" title="w:University of Iowa">University of Iowa</a> in early 1966, with rack side panel removed and computer extended from the rack on its mounting slides.  The shiny object below the mounting slides is the <a href="https://en.wikipedia.org/wiki/power_supply" class="extiw" title="w:power supply">power supply</a>.  The black cables extending down past the power supply are the <a href="https://en.wikipedia.org/wiki/I/O_bus" class="extiw" title="w:I/O bus">I/O bus</a>.  This photo documents the machine before the start of restoration work.
<a href="//commons.wikimedia.org/wiki/User:Douglas_W._Jones" title="User:Douglas W. Jones">Douglas W. Jones</a>
<span class="int-own-work" lang="en">Own work</span>