1. A robot system for acquiring unoriented unmodified workpieces from a bin which comprises: (a) a robot assembly which includes a hand to engage unoriented workpieces stored in the bin, at least some of the workpieces having three angles of uncertainty; and an arm secured to the hand to translate and rotate the hand; (b) a video imaging device to provide data corresponding to the workpieces in the bin, the workpiece being structurally distinct from the device, which data includes information based on the three angles of uncertainty and is sufficient to allow a candidate holdsite to be determined, the device defines line of sight optical paths and the hand is secured to the arm and adapted for movement along a line of sight optical path; (c) means to store data corresponding to the relative positions of the bin, the device and the robot assembly, and the data provided by the device; and (e) a computer communicating with the robot assembly, the device and the means to store the data which includes means to determine the position of the candidate holdsites; and means to output data to the robot assembly to move the hand to engage the workpiece at the selective candidate holdsite and to remove subsequently the workpiece from the bin.