first, in developed countries, we get more information from radio and television, because these media are developing rapidly. For example, drivers can easily listen to various messages and information in the car. On weekends, many people watch information on TV. As for the book, nowadays the elderly use the book more because they are used to it. The reason why many old people use books is because television and radio were not developed in their time and such information was not available. Soon, radio and television provided employment to many people. We can say that these are one of the main reasons for the country's development.