PURPOSE: A mission alarm function service is provided to display a use completing message accompanying with an alarm by setting the using time of a PC and promising between a parent and a child.;CONSTITUTION: A management server is installed in a PC and is processed. The mobile phone of a manager is registered in a management server. The management server checks the using time of a PC. If the using time is expired, the management server transmits a use finish message and voice to the PC(S20). If the PC is not completed during a predetermined time, the management server transmits a text message with the registered mobile phone(S51). The manager checks the using time of the PC through the mobile phone and completes the PC(S52).;COPYRIGHT KIPO 2012
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