| 摘要 |
PROBLEM TO BE SOLVED: To perform more secure downloading at the start of operation by evading the delay of the start time of the operation. SOLUTION: A server 3 and a client have a 1st program and a 2nd program respectively. The 1st program has a report program 12-1 which reports the specified time when data are transferred to the client 1 and a transfer program 15-1 which transfers data 4 to the client 1. The 2nd program has a download program 17-1 which downloads the data 4 from the server 3 to the client 1 at a specified time. The 1st program determines the specified time according to the sizes of pieces of data 4 transferred to multiple clients 11 and a line route. The server 3 can download the data individually to the clients not at the time that the clients desire, but at the specified time that the server determines and the load on the server 3 is distributed to avoid the delay of the downloading, so that the specified time will be earlier than the start time of the operation.
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