On November 4, 2010 Microsoft introduced Kinect, a natural user interface providing full-body 3D motion capture, facial recognition, and voice recognition, for the Xbox 360 video game platform. The device featured an "RGB camera, depth sensor and multi-array microphone running proprietary software." It enabled users to control and interact with the Xbox 360 without the need to touch a game controller.
"The system tracks 48 parts of your body in three-dimensional space. It doesn’t just know where your hand is, like the Wii. No, the Kinect tracks the motion of your head, hands, torso, waist, knees, feet and so on" (http://www.nytimes.com/2010/11/04/technology/personaltech/04pogue.html?scp=1&sq=kinect&st=cse, accessed 11-04-2010).