CEVAP:

The message transfer that is directed to certain, known and individually addressed persons is called personal communications. For example, an automobile seller making sales conversation to a potential customer in the showroom uses personal communication. On the other hand, the messages may also be directed to a number of receivers who cannot be identified, by using mass media to reach a broad audience. For example, the same automobile company may use television as a media to introduce its new model of SUV.