A device which includes a sphere mounted in a small open-topped box. The sphere is hand-operated by rotating it in a backward, a forward, or a sideway direction while maintaining the device in a fixed location. The movement of the sphere generates a signal which may be used to move a cursor and/or tracking symbol on the face of a display, such as a cathode ray tube; to input data into an electronic system; and/or to control the operation of a system. It may or may not include additional input devices, such as switches or variable resistors.
Classification: Adp input/output units, nesoi
NSN 4140-01-521-2357
NSN 6105-01-504-2811
NSN 6145-01-040-3507
NSN 7035-01-413-1906
NSN 6650-00-147-4887
NSN 5910-01-155-3717
NSN 6135-01-629-6940
NSN 5915-01-116-7074
NSN 5930-00-452-4552
NSN 6620-01-408-4464
NSN 6620-01-373-8968
NSN 6220-00-228-3651