"Hacker" is more than a clever programmer, could be a clever hardware engineer ( https://www.crowdsupply.com/kosagi/novena-open-laptop ), or a clever armorer ( http://www.kwartzlab.ca/2013/08/summer-artist-residence-ryan-consell/ ) or a clever carpenter ( https://en.wikipedia.org/wiki/Rietveld_joint ). That Wikipedia article on hackers is outright wrong in some places, and leaves much to be desired.