An I-cursor, also referred to as an I-beam pointer, is a mouse cursor, indicating that the mouse is over an area where text can be typed. Its shape resembles the capital letter "I". When your mouse cursor is an I-beam, you can click to place your text cursor there. Text can then be highlighted, inserted, or changed in that area. In the picture is an example of how the I-cursor may appear.
Example of an I-beam pointer
The animation displayed is an example of a mouse cursor moving around the screen. The mouse cursor first appears as a pointed arrow, then changes to an I-beam cursor when the pointer is over an editable text area. Then, when the mouse pointer hovers over a clickable link, the pointer looks like a hand.
How to use the I-beam pointer
To select a word with the I-beam, double-click in the middle of any word and to select an entire line of text or paragraph click the button quickly three times. To select a portion of text, click at the beginning or end of the text and while holding down the mouse button drag left, right, up, or down.