Semiconductor memory board from an <a href="https://en.wikipedia.org/wiki/IBM_AP-101" class="extiw" title="w:IBM AP-101">IBM AP-101S</a> NASA Space Shuttle General Purpose Computer, 1991.
<bdi><a href="https://en.wikipedia.org/wiki/en:Ladd_Observatory" class="extiw" title="w:en:Ladd Observatory"><span title="astronomical observatory at Brown University">Ladd Observatory</span></a>
</bdi>
<span class="int-own-work" lang="en">Own work</span>