Mouse
A
Mouse is a Handy Device (Pointing Device) which can be moved on a smooth
surface to cause the movement of a cursor on the screen. It is a pointing
device which is used to input data and information into the computer system by
pointing on it. Physically, a mouse contains a small case, held under one of
the user’s hands with one or more buttons. For GUI-based systems a mouse is an
essential pointing-device. The cursor of the mouse moves in the same direction
in which the mouse ball rolls.
Its
name is derived from its shape, which looks a bit like a mouse, with its
connecting wire that one can imagine to be the mouse’s tail. A Mouse rolls on a
small ball and has two or three buttons on the top. When you roll the mouse
across a flat surface on the screen, sensors sense the mouse in the direction
of mouse movement. The cursor moves very fast with a mouse giving you more
freedom to work in any direction. It is easier and faster to move through a
mouse compared to movement using keys.
Mouse
Actions
1.
Left Click: Used to select an item.
2.
Double Click: Used to start a program or open a file.
3.
Right Click: Usually used to display a set of
commands.
4.
Drag and Drop: It allows you to select and move an item
from one location to another. To achieve this place the cursor over an item on
the screen, click the left mouse button and while holding the button down move
the cursor to where you want to place the item, and then release it.
Types
of Mouse
Mouse
could be mechanical, optical or cordless types. Further information regarding
these types are as follows:
1.
Mechanical Mouse: Mechanical Mouse uses ball for the
movement of cursor on the computer screen. When the ball is rolled in
any direction, a sensor of the mouse detects it and also moves the mouse
pointer in the same direction.
2.
Optical Mouse: Optical Mouse uses Laser rays for the
movement of cursor on the computer screen. It is an advanced pointing
device. Movement is detected by sensing changes in the reflected light rather
than the motion of a rolling sphere.
3.
Cord-Less Mouse: Cord-Less Mouse is battery driven
and does not need any wire for the physical connection with the
motherboard. It transmits data through infrared or radio signal.
Computer mice are very useful in designing
pictures and graphs and computer and video games by multimedia designers. A
Mouse pad is required to move the mouse because it provides a smooth surface.
However, an optical or laser mouse doesn’t require a mouse pad.
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