In addition to LEGO's famous bricks, the LEGOMINDSTORMS EV3 set contains a multitude of parts-including motors, infrared sensors and a programmable microcomputer-that allow children to create robots that walk, move or take whatever action they're programmed to do.
Trower's second stage of robotic development includes simple, single-purpose robotic devices like the Roomba or Looj, along with toy robots like WowWee's Robosapien or LegoMindstorms, a set of programmable robot-building pieces.