The Internet enables any-to-any connectivity. The first wave of connectivity was user buildings (homes and offices) connecting to business buildings with wired Internet connections. The second wave was mobile user devices (laptops, smartphones, tablets) connecting to businesses and each other over wireless Internet connectivity. The latest wave is "things" connecting to users, businesses and other "things" using mixtures of wired and wireless connectivity. This includes automobiles, airplanes, medical machinery, personal medical devices, windmills, environmental sensors, natural gas extraction platforms, you name it. The effectiveness and efficiency of these systems is being greatly multiplied by both client/server and peer to peer connectivity, enabled by advances in new forms of connectivity, inexpensive controllers and Internet-standard protocols.