A terminal device in which basic information and detailed information of each a plurality of application programs are stored in a different storage area for each application program, and that prohibits access to each storage area by other application programs, is caused to execute the processes of displaying a window that includes the basic information of each application program, and, if a cursor is moved to the display position of one of the pieces of basic information, reading out, from the appropriate storage areas, the detailed information of a first application program corresponding to the basic information where the cursor is positioned and the detailed information of a second application program whose basic information is displayed adjacent to the basic information of the first application program, and displaying the detailed information of the first application program.