Information processing system

1. An information processing system comprising:

a plurality of information terminals;

an information processing apparatus; and

an information storage apparatus,

wherein the information processing apparatus is connected to a first network and the information storage apparatus is connected to a second network, said first and second networks being connected each other via a firewall,

wherein the information processing apparatus includes

a receiving unit configured to receive information that is transmitted from one of the plurality of information terminals, and

a transmission unit configured to transmit the information, which is received by the receiving unit, to one or more other information terminals and the information storage apparatus,

wherein each of the plurality of information terminals includes

a transmission unit configured to transmit the information to the information processing apparatus, and

a receiving unit configured to receive information which is transmitted from the information processing apparatus,

wherein the information storage apparatus includes

a storage unit configured to store the information which is transmitted from the information processing apparatus,

wherein a first information terminal and a second information terminal of the plurality of information terminals are configured to participate in a group in which chat messages are transmitted,

wherein, after the chat messages are transmitted in the group in which the first information terminal and the second information terminal participate, a third information terminal of the plurality of information terminals is configured to participate in the group, and

wherein the first information terminal is configured to select whether the chat messages transmitted before the third information terminal participates in the group are to be displayed on a screen of the third information terminal.

2. The information processing system according to claim 1 ,

wherein the information processing apparatus further includes

a transmission destination determination unit configured to determine the information terminals which belong to a group which shares information therein and the information storage apparatus as transmission destinations of the information which is received by the receiving unit of the information processing apparatus.

3. The information processing system according to claim 2 ,

wherein the transmission destination determination unit is configured to determine that the information storage apparatus is not one of the transmission destinations of the information which is received by the receiving unit of the information processing apparatus in a case where the information storage apparatus is not set in association with the group.

4. The information processing system according to claim 2 ,

wherein the transmission destination determination unit is configured to, when the information processing system includes a plurality of the information storage apparatuses, determine the information terminals which belong to the group which shares the information therein and the plurality of information storage apparatuses which also belong to the group which shares the information therein as the transmission destinations of the information which is received by the receiving unit of the information processing apparatus.

5. The information processing system according to claim 4 ,

wherein the plurality of information terminals are required to be registered in the information storage apparatus in order to acquire information stored in the information storage apparatus, and

wherein the transmission destination determination unit is configured to, when the information processing system includes the plurality of information storage apparatuses, determine the information storage apparatuses, to which the plurality of information terminals are registered, from among the plurality of information storage apparatuses as the transmission destination of the information which is received by the receiving unit of the information processing apparatus.

6. The information processing system according to claim 1 , further comprising:

a relay apparatus that is connected to a same network to which the information processing apparatus is connected, and configured to receive a request from the information processing apparatus to be transmitted to the information storage apparatus first and transmit the request, which is to be transmitted to the information storage apparatus, to the information storage apparatus.

7. The information processing system according to claim 1 ,

wherein the information processing apparatus is connected to a global network and the information storage apparatus is connected to a local network.

8. The information processing system according to claim 1 ,

wherein after a group in which the plurality of information terminals participate is created, the information is transmitted between the plurality of information terminals via the information processing apparatus while the group is active,

wherein the one or more of the plurality of information terminals is configured to prompt the user to select whether the information, which is transmitted via the information processing apparatus while the group is active, is to be stored on the storage unit,

wherein the plurality of information terminals and the information processing apparatus are connected to the first network that is the Internet and the information storage apparatus is connected to the Internet via the firewall such that the information storage apparatus does not permit an access from an unregistered information terminal,

wherein when the user selects that the information is to be stored on the storage unit, the information processing apparatus transmits the information to the information storage apparatus to store the information on the information storage apparatus, and

wherein after transmitting the information to the information storage apparatus, the information processing apparatus deletes the information such that the information is not stored in the information processing apparatus but stored in the information storage apparatus.

9. The information processing system according to claim 8 ,

wherein one or more of the plurality of information terminals is configured to acquire, from the storage unit via the information processing apparatus, the information, which has been transmitted so far in the group.

10. The information processing system according to claim 1 ,

wherein the first information terminal is configured to select whether the chat messages to be transmitted are to be stored on the storage unit,

wherein when the third information terminal participates in the group after the first information terminal selects that the chat messages are to be stored on the storage unit, the chat messages are displayed on the screen of the third information terminal, and

wherein when the third information terminal participates in the group after the first information terminal selects that the chat messages are not to be stored on the storage unit, the chat messages are not displayed on the screen of the third information terminal.

11. An information processing system comprising:

a plurality of information terminals;

an information processing apparatus; and

an information storage apparatus,

wherein the information processing apparatus is connected to a first network and the information storage apparatus is connected to a second network, said first and second networks being connected each other via a firewall,

wherein each of the plurality of information terminals includes

a transmission unit configured to transmit information to the information processing apparatus, and

a receiving unit configured to receive information which is transmitted from the information processing apparatus and which is transmitted from one of the plurality of information terminals to the information processing apparatus,

wherein the information storage apparatus includes

a storage unit configured to store the information which is transmitted from the information processing apparatus,

wherein a first information terminal and a second information terminal of the plurality of information terminals are configured to participate in a group in which chat messages are transmitted,

wherein, after the chat messages are transmitted in the group in which the first information terminal and the second information terminal participate, a third information terminal of the plurality of information terminals is configured to participate in the group, and

wherein the first information terminal is configured to select whether the chat messages transmitted before the third information terminal participates in the group are to be displayed on a screen of the third information terminal.