| 摘要 |
In order to display an image that reflects the intents of viewers who see a displayed image, a projector includes a display control portion to output an image for display, a message reception portion to receive a message from one or more computers connected to be able to communicate, a count portion to count one or more received messages, and a change portion to change the image for display based on the number of counted messages, if one or more messages are received.
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