what is box
(1) In graphical user interfaces, a box is an enclosed area, resembling a window, on the screen. Unlike windows, however, you generally cannot move or resize boxes. There are many different types of boxes. For example, dialog boxes are boxes that request some type of information from you. Alert boxes are boxes that suddenly appear on the screen to give you information. Boxes can also be small rectangular icons that control windows. Zoom boxes, for example, enable you to make a window larger or smaller.