Optical
any mouse that is opticall can be used without a mouse pad with no problem. However, the ball mouses need the mouse pad for traction
it doesnt matter what ball you use... ultra ball or master ball is recommended though
A trackball is an input device for controlling the cursor (mouse) the ball works the same way the ball on a mouse works except that you use your hand to turn the ball. See: http://en.wikipedia.org/wiki/Trackball
It doesnt matter what ball you use. Have someone that knows hypnosis, mean look, and/or false swipe. If its at night, use a dusk ball. if not, use an ultra ball.
The track ball mouse is designed for use by people with dexterity problems. They are manufactured by Logitech and Kensington and can be bought from any good computer store.
Most modern computer mice do not have a ball, instead they use optical sensors.
The laser of the optical mouse may bounce off certain colors and shapes on a mouse pad. * There are no disadvantages to a optical mouse. The optical mouse just works better and smoother than the ball mouse, and you never have to worry about the ball getting dirty or hanging. I would suggest getting an optical mouse and throwing the ball mouse away. For this you definitly need the opinion of someone who has to sufffer the ball mouse at least once a week. ie: School pupils. I have two IT lessons a fortnight, and at our school you have a choice between overly chunky optical mice or cheap, way too light ball mice. I end up tolerating the ball mice as I am very picky about my mice. I, personally like mice with a bit of weight on them, but the thick plastic outer of the school's optical mice is ridiculous. Generally, schools don't provide pupils with mousemats on the theory that they will be nicked/tooexpensive, so the only way to get the ball mice to operate in a friendly manner is to clean it before use, or use your science book as a substitute mousemat. The moral of this long-winded story is:
It's an input like we use mouse and keyboard in computer.
The principal parts of a mechanical mouse are left and right buttons, rotating ball and scroll button. Instead of a rotating ball, optical mice use light to move the cursor.
mouseplay
Advantages are: its better than a mouse with a ball because the mouse with a ball requires a course surface to spin the ball. Disadvantage: is that if its for a game, you can over swing it and have a hard time hitting whatever your shooting at for instance, and they can be pretty annoying to use.
Advantages are: its better than a mouse with a ball because the mouse with a ball requires a course surface to spin the ball. Disadvantage: is that if its for a game, you can over swing it and have a hard time hitting whatever your shooting at for instance, and they can be pretty annoying to use.