A mouse is a small device that you can use to move, select, and open items
on your computer screen.
The mouse is usually kept on the desk next to the keyboard. Most mouse
devices have at least two buttons, left and right. Most of the actions are
performed by clicking the left button. The right button is used for
specific functions. Some advanced types of mouse devices provide additional
buttons to speed up common tasks, such as scrolling text.
As you move the mouse on your desk, a pointer moves correspondingly on
your screen. The mouse allows you to select an item on the screen.
As you move the pointer over different areas of the screen, the items or
the pointer change. These changes indicate that you can click an item to
open it, or see more of its options.
You can open an item by moving the pointer to it, and clicking the left
mouse button twice.
In a document, you can use the mouse to select a position to start typing.
You need to position the pointer in the document, click where you want to
insert text, and then use your keyboard to begin typing.
To move an item, you need to click it, and then holding the mouse button
down, move the item to a different location. After you move the item to the
new location, you release the mouse button.
The right button on the mouse is used to display a menu.
The options on this menu include the most common tasks, such as copying
text from one location and pasting it to another location. These are called
context-sensitive menus.
These menus help you complete tasks quickly.
Most mouse devices also have a wheel that help you to scroll through
documents or pages.
To scroll, place your finger on the wheel and roll it back and forth. This
moves the document up and down.
There are different types of mouse devices available in the market. A
regular mouse has a rubber or a metal ball on the underside.
The mechanical movement of the mouse device moves the ball. This movement
further moves the pointer on the screen.
An optical mouse can be used in the same way as a regular mouse. However,
it does not have a ball. It uses a laser to detect movement.
Lesson 1 - INTRODUCTION TO COMPUTERS 1.5 - USING A MOUSE
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