Abstract: A merchandise simulator device which allows a user to operate a desired piece of merchandise on a user's terminal as if the user was using the piece actually at hand. In the merchandise simulator device, when a workstation executes merchandise simulation software received from an HTTP server, a merchandise simulation control section is activated on the workstation to thereby display the basic image of a selected piece of merchandise in a display section. If a drag operation is carried out by a mouse of an input section, then the piece of merchandise displayed on the display section is rotated on the basis of two or more pieces of image data received from the HTTP server and also, if a mouse input is given to a button or the like of the image data displayed on the display section, then the function of the piece of merchandise displayed in the display section is simulated in whatever display state the present piece is.