| 摘要 |
PROBLEM TO BE SOLVED: To shorten time for downloading shared data and to enable even a user unskilled in the operation of a compressing tool to easily utilize the shared data as well. SOLUTION: When the upload of original data or download of shared data is requested through the Internet 40 by a communication terminal 10 or 20, the original data registered as shared data by a server device 30 and when download is requested from the communication terminal 10 or 20, the shared data to be downloaded are compressed and transmitted to the requesting communication terminal 10 or 20.
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