One of the primary vectors of miniaturization is in the electronics. In this &lt;1 inch thick Casio, all of the electronics fit on a 1.25” square double sided board (marked above).<br>Naked Casio Exilim
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/44124348109@N01">Steve Jurvetson</a> from Menlo Park, USA
CC BY 2.0
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