Patent ID: 7634646

Claim:
A client/server system, comprising: a first delivery server that has an Operating System data previously stored therein; a second delivery server; a third delivery server that has an application data previously stored therein; and a network terminal device; wherein said second delivery server is adapted to: request a transmission and receive the Operating System data from said first delivery server, store the Operating System data, and activate the Operating System data as the Operating System of its own; request a transmission of the application data from said third delivery server upon activation of the Operating System, receive the requested application data, and store the requested application data; and transmit the Operating System and the application data to the network terminal device in response to a request from the network terminal device; wherein the network terminal device comprises: a temporary storage section; a network connecting section for connecting to a communication network, wherein said network connecting section are adapted to download an Operating System and an application from the second delivery server via the communication network, and to store the Operating System and the application in the temporary storage section; and program executing section adapted to execute a program stored in the temporary storage section, to activate the Operating System stored in the temporary storage section, and to activate and run the application on the Operating System.