Disclosed herein is an information processing apparatus for carrying out an information registration process to register preference information of a user for an item determined in advance. Linear rails associated with the top portions of the file folders cooperate with ribs on the tab holders to mount and laterally guide the tab holders on the file folders. A visual alarm indicator is operably connected to the alarm control circuitry. A privacy shell is positioned on opposing lateral sides of the seat back and mounted for movement between a retracted position wherein the shell permits unimpeded lateral vision by the passenger seated in the seat, and a deployed position wherein the shell impedes lateral observation of the passenger seated in the seat, thereby providing privacy when desired by the passenger.