A type of mouse that has been designed to reduce muscle strain and decrease discomfort (while using the mouse) associated with a injuries such as carpal tunnel syndrome, arthritis, and tendonitis. Compared to other mice, an ergonomic mouse is designed to fit a more natural hand position when being used.
Webopedia: How to Clean Common Computer Parts and Devices From dusty computer fans to fingerprints on compact discs, computer parts and devices can get awfully dirty from normal everyday use or when left sitting unused. The best way to have any computer component cleaned is to have it professionally serviced, but if you no longer have a service warranty, or if you picked up a second-hand item and want to clean it to see if it even works, here are some tips on how to clean some common items.