Windows screen saver displaying a "Rule 30" cellular automaton.
More on cellular automata you can find on [mathworld website](http://mathworld.wolfram.com/ElementaryCellularAutomaton.html =250x180).
It was my "one boring evening" project I did in somewhere in 2012 after reading a few chapters from "The New Kind of Science" by Stephen Wolfram. You can read an ebook on official website.
You can download screen saver from here.
Install with right-click and "Install".