Scrollbar
A vertical or horizontal bar commonly located on the far right or bottom of a window that allows a user to move the window viewing area up, down, left, or right. Most users today are familiar with scrollbars because of the need to scroll up and down in almost every Internet web page. Below is an image of a Microsoft Windows window with a vertical and horizontal scrollbar.
Scrollbars are utilized using the mouse or keyboard. Using the mouse the user can move one line at a time by clicking the scroll arrow located on either end of the scroll bars, click on blank or empty portions of the scroll bar to move to that section of the window, or clicking and dragging the scroll box to scroll through a page. Using the up or down arrow keys or page up and page down keys will also move the scrollbar in most programs.
Most computers today also include a mouse with a wheel or button that allows the user to scroll up and down on a page, and in some cases left to right. See the IntelliMouse definition for additional information about these mice.
On a Apple computer some programs such as Safari may not display the scroll bars, to scroll up and down in these programs without the scrollbar touch two fingers on your touchpad or touch mouse and drag them up or down.
Also see: Horizontal scroll, Scroll, Vertical scroll, Wheel mouse