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 5935-01-211-5763
NSN 2925-01-400-2286
NSN 6240-01-070-5466
NSN 6320-00-456-0836
NSN 6685-01-576-5848
NSN 6685-01-243-0372
NSN 5925-01-634-0664
NSN 2925-00-479-9297
NSN 5835-00-058-7017
NSN 5930-01-394-9509
NSN 5920-01-634-0250
NSN 5925-01-139-3866