In a cell-phone terminal for receiving an event and detecting an application corresponding to the event to notify and manage the event, a conflicting condition and a return priority are set to each of multiple applications in advance. On receiving the event making a request for activation of an application later in a status of having an application running in advance, an application management portion suspends the application based on a conflicting condition about the application, and stores return information on the application necessary to activate it again for each return priority in the case of operating the application. When the application is finished, the application management portion reads the return information in lowering order of the return priority and activates a corresponding application by using the return information.