Spaceball Mouse
Hewlett-Packard Spaceball (1991)
Invented by John Hilton, as input device to manipulate 3D as if you grabbed the object.
Made by Spacetec IMC, year 1991.
Invented by John Hilton, as input device to manipulate 3D as if you grabbed the object.
Made by Spacetec IMC, year 1991.