[technology development -21]: rapid overview of the application and development of network and communication technology -1- Internet Network Technology

Catalog

Preface ：

The first 1 Chapter The current situation of Internet development

The first 2 Chapter What is the Internet

The first 3 Chapter Internet in China

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Preface ：

The Internet ： It is composed of several nodes and link constitute , Represents many objects and their interrelations .

Internet （internet）, Also known as the international network , refer to The Internet A huge network connected with the network , These networks are connected by a common set of protocols , Form a single huge international network logically .

The Internet began 1969 year The United States Of ARPANET . Usually internet The Internet , and Internet Especially the Internet . This will computer network The method of interconnection can be called “ Network interconnection ”, On this basis, the development of a global Internet covering the world is called the Internet , That is, they are interconnected Network structure . The Internet is not the same web , The world wide web is based on Hypertext Interconnected global systems , And it's one of the services that the Internet can provide .

signal communication , It refers to a certain behavior or... Between people or between people and nature medium Information exchange and transmission , In a broad sense, it means that both or more parties who need information adopt any method without violating their own wishes 、 Arbitrary medium , Accurately and securely transfer information from one party to the other

Communications technology , also called Communication engineering （ Also make Information engineering 、 Telecommunication Engineering , Formerly known as telecommunication engineering 、 Weak current engineering ） yes Electronic engineering An important branch of , It is also one of the basic disciplines . This discipline focuses on the process of communication information transmission And the principle and application of signal processing . Communication Engineering Studies , Electromagnetic wave 、 The transmission of information in the form of sound or light waves through electrical pulses , From the sender （ Source ） Transmit to one or more receivers （ Shinjuku ）. Whether the receiver can correctly identify the information , It depends on the loss power in transmission . signal processing It is an important link in Communication Engineering , It includes filtering , Encoding and decoding, etc . Professional courses include fundamentals of computer network 、 Circuit Foundation 、 The principle of communication system 、 Switching technology 、 Wireless technology 、 Computer communication network 、 Communication electronic circuit 、 Digital electronic technology 、 Optical fiber communication .

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The first 1 Chapter The current situation of Internet development

 

 

 

 

The first 2 Chapter What is the Internet

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

The first 3 Chapter Internet in China