To provide a communication system or the like for displaying content.

A multifunctional machine 10 acquires feed information from content-providing servers 90 and 91. The multifunctional machine 10 transmits to a PC 70 article information 201 acquired at power off and a site URL 102 when the power source turns off. The multifunctional machine 10 transmits an article delivering request to the PC 70 when the power source turns on. The multifunctional machine 10 receives content information 132 transmitted from the PC 0. The PC 70 receives the article information 201 acquired at the power off and the site URL 102 sent from the multifunctional machine 10 to store them. The PC 70 acquires the feed information in accordance with the reception of the article information 201 acquired at the power off, and extracts, from the feed information, the content information 132 which is newly included after the article information 201 acquired at the power off to store it. The PC 70 transmits the content information 132, which the multifunctional machine 10 fails to acquire, to the multifunctional machine 10 in accordance with the reception of article information 202 acquired when at the power on.