The arrows are clicked to move one line at a time. Since the advent of scroll mice, which use a wheel for vertical and horizontal scrolling, the scroll bar is being used less and less on desktop ...

On-screen arrow that is clicked in order to scroll the screen in the corresponding direction. The screen moves one line, or increment, with each mouse click. THIS DEFINITION IS FOR PERSONAL USE ONLY.

using the down-arrow key to go down and the up-arrow key to go up. Those who are using a mouse can use its built-in scroll wheel to navigate up and down pages. If after a while, however ...