Amateur roboticists experiment with designing their own robots at home as a hobby. It is possible to mail-order "robot developer kits," which contain all the pieces necessary to build a robot, such as sensors, motors, a microphone, a video camera, aluminum body pieces and wheels. Along with the appropriate software, an amateur roboticist can use his or her personal computer to program the robot to perform basic functions and follow voice commands. The kits are somewhat expensive, but their popularity seems to be on the rise.
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