1. An electronic apparatus, comprising: a graphic processor to generate each of a plurality of images; a mixer to incorporate the plurality of generated images into one image; a display to display the incorporated image; an inputter to receive a control command; and a controller to control the graphic processor to generate a plurality of images corresponding to the input control command, wherein when a command to add an image is received, the mixer notifies the controller that a new virtual display apparatus is connected to the electronic apparatus.