http://en.wikipedia.org/wiki/Swarm_robotics, http://matrix.wikia.com/wiki/Sentinel,
http://thedigitallabyrinth.blogspot.ca/2009/08/tiny-i-swarm-robots.html
An individual robot or a swarm of them, run on a series of programs. Sometimes there is a program that isn't connected to a physical robot. This seems to be the case with Agent_Smith, as an individual A.I. unit or in swarm mode. http://matrix.wikia.com/wiki/Smith?file=Agent_Smith2.jpg,
http://en.wikipedia.org/wiki/Swarm_(simulation),
http://matrix.wikia.com/wiki/Smith?file=Agent_Smith_Clone.jpg,
http://matrix.wikia.com/wiki/The_Matrix_Reloaded?file=The_Matrix_Reloaded_Burly_Brawl.jpg
http://www.matrixeyewear.com/blog/my-favorite-agent-smith-quotes-from-the-matrix-trilogy
http://thedigitallabyrinth.blogspot.ca/2013/03/augmented-reality.html