What are the characteristics of writing letters, making phone calls, sending faxes and sending emails?

Writing letters, making phone calls, sending faxes and sending emails are all ways to communicate with specific people.

1, send a letter:

Mail letters. It is characterized by its slow speed.

Letter is a way of communication, and it is an applied document to convey information and exchange thoughts and feelings to a specific object.

2. Call:

Telephone is a tool of modern communication, so it is convenient to contact with work and do things.

Voice call can be divided into two forms: consumption of traffic and consumption of telephone charges, and the so-called telephone call is the classic form of voice call that consumes telephone charges.

3. Send a fax:

Fax is one of the fastest-growing non-telephone telecommunication services in the last century.

Still images recorded on paper, such as words, charts, photos, etc. , scanned and converted into electrical signals, and transmitted to the destination through various channels. At the receiving end, through a series of inverse transformation processes, a communication method similar to sending the original is obtained, which is called fax.

4. Send e-mail:

E-mail is a communication method that provides information exchange through electronic means, and it is the most widely used service on the Internet. Through the e-mail system of the network, users can contact network users in any corner of the world at a very low price (no matter where they send them, they only need to pay the network fee) and in a very fast way (they can send them to any designated destination in the world in a few seconds).

E-mail can be text, image, sound and other forms. At the same time, users can get a lot of free news and special emails, and easily realize easy information search. The existence of e-mail greatly facilitates the communication between people and promotes the development of society.