Ball Mouse
Optical Mouse
This entry will be about two different types of computer mice. One is movable with a rubber ball, while the other is moved by laser sensor. I actually like the laser mouse more than the ball mouse, because the ball mouse tends to get dirty after a while. The dirt causes the rubber ball to slow down or even stop moving. You would have to take out the rubber ball to clean it, but that increases the chances of losing the mouse's ball, thus rendering the mouse useless and forcing you to buy another mouse.
The optical mouse is more economic and less susceptible to the "missing parts" problem. You need only have the mouse on a firm surface and move your mouse around. Unless your optical laser or the mouse's wire is damaged, then there is no problem.
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