User Interfaces have changed a lot since I’ve used a computer for the first time - text-based ones, powered with ncurses and TurboVision have been replaced by windows (forms, tforms, dialogs, whatever you prefer), we had a touch- and natural- interfaces revolution, now we have completely new design principles for building applications for mobile devices. There are also UIs optimized for controllers like Leap Motion of (most recently) Oculus Rift (http://www.oculusvr.com/). Applications of modern day look completely different from what we knew years ago. But there’s one category of software that didn’…