Abstract: A system includes an application server connected to a web server and a client terminal via a network, the terminal being connected to an external memory, the application server includes an interface for a provider of a service, a contents database, an attribute database, an ID receiving part for receiving the ID sent from the client terminal connected to the external memory, an authentication part, an attribute information reading part, a display contents generation part and a display contents sending part, the external memory is stored with a program for sending the read ID to the application server from the client terminal and displaying the received display contents on a screen of the client terminal.

Abstract: A computer system for an easy system/information management. A client (100) and a server (200) are connected through a network (NW) so that a hard disk (240) or a server storage device is stored with a server holding type application program such as a menu program (243) to be operated on the web browser of the client (100). The server (200) has a web server program (242) and provides a file in response to the request of the client (100). After having started a second OS program (151), the client (100) starts a web browser program (153) in a full-screen display, and gains access to the file which is set for each client (100) or user and expressed in URL.