ralph (07/01/82)
We are looking for a tracker ball for our human factors lab. We have found one at $4000! I find it hard to believe that video games use devices that are of this quality and price. Therefore, anyone know of a source of cheaper track balls? thanks ralph hill computer systems research group University of Toronto 10 King's College Road Toronto Ontario Canada M5S 1A4 ...!decvax!utzoo!utcsrgv!ralph