First pocket programmable calculator, 1974
<ul><li><a href="//commons.wikimedia.org/wiki/File:HP_65.jpg" title="File:HP 65.jpg">HP_65.jpg</a>: <a rel="nofollow" class="external text" href="https://www.flickr.com/photos/teclasorg/">teclasorg on flickr</a></li>
<li>derivative work: <a href="//commons.wikimedia.org/wiki/User:Pittigrilli" title="User:Pittigrilli">Pittigrilli</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Pittigrilli" title="User talk:Pittigrilli"><span class="signature-talk">talk</span></a>)</li></ul>
<ul><li><a href="//commons.wikimedia.org/wiki/File:HP_65.jpg" title="File:HP 65.jpg">HP_65.jpg</a></li></ul>