A portable terminal comprising: a recognizer adapted to recognize a circumferentially existing electronic appliance based at least on a radio signal, wherein the recognizer is adapted to detect an SSID radio signal of a wireless LAN and to read or receive results of an electronic appliance list table associated with the received SSID, whereby said electronic appliance list table is a table in which an SSID is associated with one or more electronic appliances connectable with the LAN having this SSID, and the recognizer is adapted to use information from the electronic appliance list table to recognize a circumferentially existing electronic appliance; an application controller adapted to allow one or more applications related to the electronic appliance to start and then be resident in a memory, the application having a user interface varying by electronic appliance, and an interface changer adapted to, when the recognizer recognizes a predetermined electronic appliance, change a user interface displayed on a display unit and an input unit of the portable terminal into a user interface of an application associated with the recognized predetermined electronic appliance, among the applications being resident in the memory, so as to enable a user to view the user interface using the portable terminal, a memory adapted to store the physical location of the electronic appliance as location information, wherein the location information can be retrieved from the electronic appliance list table; a first detector adapted to detect the direction to which the upper face of the portable terminal points; a positioning determinator adapted to detect the physical location of the portable terminal, and a object determinator adapted to an electronic appliance existing in a path being an extension of the direction of the upper face of the portable terminal, among electronic appliances, the location information of which is stored, wherein the interface changer is adapted to change the user interface of the portable terminal into a user interface of an application associated with an electronic appliance determined by the object determinator, wherein the first detector is adapted to detect the direction to which the upper face of the portable terminal points from the difference in location information contents, each of which is detected by two or more location detectors respectively. a recognizer adapted to recognize a circumferentially existing electronic appliance based at least on a radio signal, wherein the recognizer is adapted to detect an SSID radio signal of a wireless LAN and to read or receive results of an electronic appliance list table associated with the received SSID, whereby said electronic appliance list table is a table in which an SSID is associated with one or more electronic appliances connectable with the LAN having this SSID, and the recognizer is adapted to use information from the electronic appliance list table to recognize a circumferentially existing electronic appliance; an application controller adapted to allow one or more applications related to the electronic appliance to start and then be resident in a memory, the application having a user interface varying by electronic appliance, and an interface changer adapted to, when the recognizer recognizes a predetermined electronic appliance, change a user interface displayed on a display unit and an input unit of the portable terminal into a user interface of an application associated with the recognized predetermined electronic appliance, among the applications being resident in the memory, so as to enable a user to view the user interface using the portable terminal, a memory adapted to store the physical location of the electronic appliance as location information, wherein the location information can be retrieved from the electronic appliance list table; a first detector adapted to detect the direction to which the upper face of the portable terminal points; a positioning determinator adapted to detect the physical location of the portable terminal, and a object determinator adapted to an electronic appliance existing in a path being an extension of the direction of the upper face of the portable terminal, among electronic appliances, the location information of which is stored, wherein the interface changer is adapted to change the user interface of the portable terminal into a user interface of an application associated with an electronic appliance determined by the object determinator,