Tuesday 7 February 2012

Mouse

Dear Members,
       Today we are going to share with you new lesson......
In this lesson we will give you knowledge about Mouse and its types & uses.



SO FRIENDS LETS START OUR LESSON

  • Mouse:-
   A device that controls the movement of the cursor or pointer on the screen. A mouse is a small object you can roll along a hard, flat surface. Its name is derived from its shape, which looks a bit like a mouse, its connecting wire that one can imagine to be the mouse’s tail, and the pointer on the display screen moves in the same direction.
Mice contain at least one buttons as many as three, which have different functions depending on what program is running. Some newer mice also include a scroll wheel for scrolling through long documents.
·        Types of Mouse:-
Mechanical:-
                        Has a rubber or metal ball on its underside that can roll in all directions, Mechanical sensors within the mouse detect the direction the ball is rolling and move the screen pointer accordingly.
Opto Mechanical:-
                        These mouse same as a mechanical mouse, but uses optical sensors to detect motion of the ball.
Optical:-
                        Uses a laser to detect the mouse movement. You must move the mouse along a special mat with a grid so that the optical mechanism has a frame of references. Optical mice have no mechanical moving parts. The respond more quickly and precisely than mechanical mice, but they are also more expensive.

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