Another example of this that I love is that you can build logic gates in Transport Tycoon (well, OpenTTD) using trains and rail signals: http://www.tt-forums.ne

Another example of this that I love is that you can build logic gates in Transport Tycoon (well, OpenTTD) using trains and rail signals: http://www.tt-forums.net/viewtopic.php?f=29&t=37902 http://www.tt-forums.net/viewtopic.php?f=29&t=37902.