http://www.sgi.com/products/appsdirectory.dir/Applications/Peripherals/ApplicationNumber2505.html (Silicon Surf Promotional CD, 01/1995)

Omega Trackball

Omega Trackballs are very small (no larger than a mouse), precision instruments. The trackball has an embedded microprocessor-controlled program, permitting the trackball to function as a direct plug-in replacement for the existing mouse. No driver or software revisions are required.

Design features are:

Exceptionally compact size
Optical encoders, 1-1/2" ball
Three function switches
Optimum cursor control

Robert Hulle

President
Evergreen Systems International
31336 Via Colinas
Westlake Village, CA 91362
USA
818-991-7835
fax:818-991-4036