http://www.sgi.com/products/appsdirectory.dir/Applications/Peripherals/ApplicationNumber2504.html (Silicon Surf Promotional CD, 01/1995)Diamond Trackballs are a 2" industrial/military grade trackball. As such, it is a direct replacement for the mouse. It is a high-resolution input device capable of providing one pixel resolution with dynamic resolution on demand for rapid movement. It is an extremely rugged, compact unit operating on existing mouse software. Diamond Trackballs is ideal for CAD/CAM graphics and all other functions requiring an input device.
Robert Hulle
President Evergreen Systems International 31336 Via Colinas Westlake Village, CA 91362 USA 818-991-7835 fax:818-991-4036