MOUSE
It is an input device used to
control the position of the cursor and screen. It is a "point and draws" input
device.
"A Mouse is a point and draw
type of standard input device that rolls around"
A mouse has mainly used in the GUI (graphical user interface) environments. The mouse has right and left buttons in common. Many recent mice have a scroll wheel as
the middle button. There are new mice that don't have a ball at all. They use a
laser to sense the motion of the mouse instead. 
FUNCTIONS OF MOUSE
Following are the functions of
a mouse:
 |
1. Pointing
2.
Clicking
3. Double-clicking
4.
Dragging
5. Dragging and Dropping
6. Right-clicking
Pointing:
When we move the cursor of the
mouse to an icon and leave it over there it is called pointing.
Clicking:
While pointing to an icon if we
press and release a button of the mouse there, it is called clicking.
Double-clicking:
If we click and release quickly
for two times this is called double-clicking.
Dragging:
If we point to a graphic icon,
press button over there and hold it down and move our hands across the screen,
this function is called dragging.
Dragging and Dropping:
If we drag a graphical icon
across the screen to our desired position and release the pressed button over
there then this function will be called dragging and dropping.
Right-clicking:
If we point
to a graphic icon, press the right mouse button, a menu
related to the properties
of that icon opens, this is called the
right-clicking.
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