Network system spontaneously transmitting data from server machine to user terminal having first and second parts for requests and message, respectively

A user terminal responsive to an order by a user and capable of being connected to a network system having a server machine that transmits first data to the user terminal in response to a request from the user terminal and spontaneously transmits second data to the user terminal, comprising:

• a first port that transmits the request to the server machine and receives the first data transmitted from the server machine in response to the request;
• a second port that receives the second data spontaneously transmitted from the server machine, the second port being only for use of receiving the second data spontaneously transmitted from the server machine;
• a display device that displays contents of service capable of being ordered from the user terminal based on the first data received through the first port;
• and
• an input device for inputting the order corresponding to the contents of service displayed on the display device as the request,
• where in the second data is transmitted through the second port from the server machine at least when the order requested from the input device is completed, the second data is described in a language along a specification of an HTML and the display device also displays a message indicating a completion of the order based on the second data by using a Web browser in response to reception of the second data.

A network system, comprising:

• a server machine having a spontaneous transmitting device;
• a plurality of user terminals, each having a display device;
• a first port through which a request is transmitted from the user terminal to the server machine and first data is transmitted from the server machine to the user terminal in response to the request;
• and
• a second port through which second data is spontaneously transmitted from the server machine to the user terminal, the second port being only for use of spontaneously transmitting the second data,
• wherein the second data is described in a language along a specification of an HTML and the user terminal displays the second data on the display device by using a Web browser in response to reception of the second data.

A user terminal capable of being connected to a network system having a server machine, that transmits first data to the user terminal in response to a request from the user terminal and spontaneously transmits second data to the user terminal, comprising:

• a first port that transmits the request to the server machine and receives the first data transmitted from the server machine in response to the request;
• a second port that receives the second data spontaneously transmitted from the server machine, the second port being only for use in receiving the second data spontaneously transmitted from the server machine, the second data described in a language along a specification of an HTML;
• and
• a display device that displays the second data by using a Web browser in response to reception of the second data.

A server machine capable of being connected to a network system having at least one user terminal, the user terminal transmitting a request to the server machine, receiving first data and second data transmitted from the server machine and displaying the second data on a display device,

• the server machine comprising:
• a first port that receives the request transmitted from the user terminal and transmits the first data to the user terminal in response to the request;
• and
• a second port that spontaneously transmits the second data to the user terminal, the second port being only for use of spontaneously transmitting the second data to the user terminal,
• wherein the second data is described in a language along a specification of an HTML and capable of being displayed by using a Web browser on the display device of the user terminal in response to the reception of the second data.