Economics and business, because these are why programmers have jobs. Additionally, understanding these will almost always dazzle non-technical managers and business owners because they are so accustomed to hearing only tech-speak from programmers and systems administrators.

Important non-technical course for programmers?
I cancelled the Microsoft Windows 10 Reservation and uninstalled KB3035583, but Windows 10 is still trying to install. 

After I uninstalled KB3035583 and restarted my laptop as instructed, I could not find KB3035583 to hide it. 

Now Windows 10 is sitting in my Windows Update saying that it will install when I restart my computer.
