Communication system, and computer and device used in such system

摘要

A communication system including a computer and a device is provided. In the system, the computer includes a signal transmission unit configured to output a signal by wireless communication in accordance with a first wireless setting, and a setting data sending unit configured to transmit a second wireless setting data to the device in accordance with the first wireless setting if the device returns identification data of the device to the computer as a response to the signal output by the signal transmission unit. The device includes a detection unit configured to detect the signal output by the computer while changing a wireless setting for the device, a replying unit configured to return the identification data of the device to the computer corresponding to the source of the signal in accordance with a wireless setting used when the detection unit has detected the signal, a receiving unit configured to receive the second wireless setting data from the computer in accordance with the wireless setting used when the detection unit has detected the signal, after the replying unit transmits the identification data, and a setting unit configured to make wireless setting of the device in accordance with the second wireless setting data received by the receiving unit.