Window? Yes, Virtual One.
A window, in the modern world, is not typically and literally the window of a house. Today, when we talk about a window it is something that consists of a visual area that contains some graphical user interface of the certain program that it belongs to and is framed perfectly by a window decoration. A window usually is in a rectangular shape that sometimes can overlap the area of the other windows.
A window also displays and allows the inputs and outputs to more than one process and is primarily associated with the graphical displays that can be manipulated or controlled by a pointer or by any kind of pointing devices.