As everyone knows, communication in people's life plays an important role in. As far as I know, there are many kinds of communication, including mail, telephone and computer are most commonly used. Writing is one of a kind. People use it to exchange information, ideas and thoughts. Although slow, but it is the cheapest way to communicate. Second is the telephone. By telephone, people can hear each other each other far apart can talk. With the development of modern science and technology, emerge as the times require use of computer, computer communication is convenient and quick. In this way, people can send e-mail to each other.

In conclusion, mail, telephone and computer so that the people all over the world closer.