What is electronic communication? What is the specific content of the electronic communication

In the current information age.

People have higher and higher requirements for the speed of information exchange, and the speed of mail delivery is particularly unsatisfying. An international piece of mail, even by express mail.

Postal service, it also takes about two or three days. For some information that urgently needs to be transmitted by letter and cannot be transmitted by **, such as contracts, various notarized documents, etc., it is often too slow and misunderstood. Of course, it is possible to use fax communication, but in the current situation at home and abroad, many ordinary households do not own fax machines.

Therefore, it is difficult to use fax machines for transmission in general.

Finally, in the early 80s of the 20th century, an electronic correspondence business appeared internationally. To put it simply, this is a combination of postal and telecommunications services. The principle is also easy to understand, the user needs to go to the post office that starts this business, hand over the documents or letters that need to be transmitted by mail, and send them by the post office with a fax machine, and then the relay bureau sends them to the destination post office through the international ** circuit, and hands them over to the recipient, and the recipient can see the documents or letters handed over by the sender within one or two hours.

Therefore, e-mail is currently the fastest way to communicate with the mail.

International Computer Network.

In the 90s of the 20th century, which was in formation, this kind of electronic correspondence took a further leap. Users of computers connected to the network all over the world can send the content of the letter directly to the recipient in a timely manner as long as they are at home, and there is no need for a postal department.

Personal Feelings:Electronic CommunicationsYesElectronicswithElectronicscommunication between them. [The medium of information in this communication is of various typesElectromagnetic signals(including electromagnetic waves, electrical signals, and magnetic signals of various frequencies), different information transmitting equipment, transmission equipment, and information receiving equipment will be selected according to the type of electromagnetic signal

Electronics are products that work on electrical energy. Because in the early days of products that relied on electrical energy, there were electron tubes in them, so such products were abbreviated as electronic products.

Communication refers to the exchange and transmission of information between people or between people and nature through a certain behavior or medium.

In a broad sense, it refers to the accurate and secure transmission of information from one party to the other by any method or medium by two or more parties who need information without going against their own will. Communication is in the process of human practice, with the development of social productive forces, the demand for the transmission of messages continues to increase, so that human civilization continues to progress.

In a variety of communication methods, the communication method that uses "electricity" to transmit messages is called telecommunications, which has the characteristics of rapidity, accuracy and reliability, and is almost not limited by time, place, space and distance, so it has been rapidly developed and widely used in the circle.

Nowadays, due to the speed of radio waves, physical communication (postal communication), which has been combined with cultural exchange and the continuous accumulation and progress of the real economy since ancient times, has been understood by human beings as an obstacle to economic development.

Means of communication:

The ancient beacon towers, drumming, and flags are mainly transmitted by visual sounds, and the fast horse relays, carrier pigeons, and postal communications in modern times are mainly transmitted by physical objects. In the past, communication for long distances took a few days at the earliest, while modern communication is often based on telecommunications, such as telegraph, **, express mail, text messages, e-mail, etc., focusing on instant communication.

As a natural science, postal communication can better reflect the harmony and communication between man and nature, but in today's period of focusing on economic interests, often do not pay attention to the relationship between man and nature, resulting in postal communication is not suitable for instant communication.

The U.S. Federal Communications Act defines telecommunications as a reference to telecommunications and radio and television. It should be noted that this communication law is not suitable for China. Since ancient times, China has attached great importance to the humanistic view of nature of "the unity of nature and man" and the pursuit of harmony between people.

Contents: Political Theory, Foreign Language, Matrix Theory, Functional Analysis, Numerical Analysis, Introduction to Semiconductor Optoelectronics, Physics of Semiconductor Devices, Solid-State Electronics, Information Materials and Technology of Electric Chips, Modern Materials Analysis Technology, Circuit Design Automation, Circuit Optimization Design, Digital Information Processing, Information Detection and Valuation Theory.

Role: Information technology is an important pillar of today's socio-economic development. The information industry, including the media used for information exchange, the manufacture and sale of equipment and raw materials for information collection, transmission, and processing, as well as computers, optical fibers, satellites, and laser automatic control, has become or is becoming a pillar industry in many countries or regions due to its new technology, high output value, and wide range.