Mouse - advantage & disadvantage

This article gives you information about mouse. Its advantage and disadvantages.

A mouse is small hand held box. It is used to position cursor on screen. Wheels are provided on bottom of mouse. Wheels used to record the amount and direction of movements. Mouse a rotated on flat surface. The amount of movement control position of cursor on screen. Mouse can be picked and place at other place, without change in position of screen cursor.

Mouse can be two button or three button. Buttons are provided at top of mouse.

Advantage :-
1. It is simple to operate.
2. It is low cost device.
3. It can select graphic object fastly.
4. It is used for quick positioning of cursor on an item.

Disadvantage :-
1. It cann't be used for tracing data from paper.

2. Small rotation of mouse can cause error in readings.
Mouse is also called as point & draw device. It is also called as GUI based user interface. When we move cursor on table, the allow in moved on screen. If we move mouse away from us, then cursor will be moved in upward direction. If we move mouse towards ourselves, then mouse will be moved down on screen.
If we move mouse toward right hand side on table, then cursor will be moved on right hand side, arrow will be moved toward right side, if mouse is moved towards or cursor left side, cursor will be moved toward left side. Due to such quick movement mouse used to draw pictures on screen.
Use of optical sensor is also a technique to detect motion of mouse. This mouse is moved over special mouse pad which has grid of horizontal and vertical lines. The sensor will detect movement across lines of grid.
Mouse can be with buttons, thumbwheel, trackball. Such mouse is called a mouse. It provide six degree of freedom. This mouse allow rotations in various directions.
Trackball :- It is point device. It is similar to mouse. Ball is rolled with fingers. It require less space for performing its operation. Sometimes it is fixed with mouse, sometimes with keyboard.

thanks and regards,
ajay singh,


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