Abstract: This single handed Computer Program Operation Interface is shaped to fit comfortably into the palm of a relaxed hand in the natural position allowing the hand to function with no stress on the muscles and tendons of the metacarpal area thus dramatically reducing the possibility of debilitating injury to the operator. Since the palm and wrist stabilize and manipulate the device, all five digits are free to perform independent and simultaneous input functions significantly increasing the speed and productivity of the operator.