Scrollbars are useful while looking at large documents or images that cannot appear in a limited visible area. Scrollbars appear horizontally or vertically, indicating your current position in the document or image and the size of the region that is not visible. Using the slider handle provided with these bars, you can access the hidden part of the document or image.
Sliders are a way of selecting an integer value between two values. That is, a slider can represent a minimum and maximum range of values, and the user can select a value within this range by moving the slider handle to the desired location in the slider.
