A mouse is a small object, designed to fit neatly under your palm. It has two main functions: You can use it to move the cursor on the screen in all directions (left, right, up, down or diagonal), and also select the items displayed on the screen. The most useful feature of the mouse is its buttons which help us in selecting items. Generally, a mouse has three buttons. Some mouse models also have a small wheel in the middle (known as roller). Some commonly used. three-button mouse are shown in mouse shown in has a small wheel in the middle.

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Using the Mouse

Before you use a mouse, make sure that it is placed on a flat surface so that you can move it easily. To get a firm grip over the mouse, it is better to keep it on a rectangular pad. This would also ensure its smooth movement. The rectangular pad is called mouse-pad The left mouse-button is the primary button of the mouse. Its two most common actions are: Click (pressing the left mouse-button once) and Double¬click (pressing the left mouse-button two times). Single click is used to highlight or click on the icons or menu options while double-click is used to open programs or icons. The second mouse-button is the right button that is used to open shortcut menus.