| The trackballs allow either of the pilots to move his individual cursor, a large crosshair, among his three displays, seamlessly sliding from one to the other. |
| It is more than a keyboard encoder, adding support for industry-standard trackballs or spinners as well. |
| Those of you who have read my stuff over the years know that I've been singing the praises of multi-button mice and trackballs for many years now. |
| Other features tailored to the gaming community include the trackball interface, which not only supports trackballs and spinners, but also has three mouse buttons as well. |
| I saw an orthopedic hand specialist, and I tested about a dozen ergonomic mice, trackballs and keyboard-trackball combinations. |
| Examples of these peripheral devices are single-handed keyboards, lightweight headset pointers, and trackballs to replace mice. |
