Basic contents of the Internet _Shang ping China focuses on high quality website construction - 上海1314龙凤鲜花坊_上海419贵族宝贝

1、 What is the Internet
The Internet is a combination of Internet transliteration and free translation, also known as the Internet. It is a network formed by connecting different types of computer networks all over the world Website production Provides more advantages. The key technical points of the Internet mainly include the following aspects:
(1) Packet switching technology and TCP/IP protocol are used for communication. Because TCP/IP protocol is open, it allows various computers to access.
(2) DNS city name service system is adopted to solve the problem that IP address is difficult to remember.
(3) IANA (Internet Assigned Number Authority) uniformly manages the allocation of IP addresses.
(4) It provides the most popular Web browsing service at present.

2、 Internet Service Provider (ISP)
An ISP is an Internet Service Provider. If you want to install a telephone, you need to go to the telecommunications office. If you want to access the Internet, you need to contact an ISP. Strictly speaking, ISP is divided into IAP (Internet Access Provider) and ICP (Internet Content Provider).
At present. IAPs of China's backbone network include:
(1) China Net: managed by the General Administration of Posts and Telecommunications, it was founded in 1994.
(2) China Science and Technology Network (CSTNET): managed by the Chinese Academy of Sciences, was founded in 1994.
(3) China Education and Research Network (CERNET): managed by the Ministry of Education, was founded in 1994.
(4) Unicom Public Computer Internet (UNINET): mainly for secondary IAP and ICP, it carries out telecom proliferation business and e-commerce, and began to provide services to users in 1999.
(5) China Netcom Broadband High Speed Internet (CNCNET): mainly engaged in IP related services, such as IP phone and data transmission axis, was completed at the end of 2000.

IAP can provide users with communication lines connected to the Internet, legal IP addresses, etc. Telecom companies around the country are generally IAPs and provide Internet access services for local users.

ICP is the operator who provides various information content on the Internet, and the content provided is all inclusive, such as audio and video entertainment, online games, computer software, medical knowledge, financial information, stock quotes, product information, e-commerce, search and indexing. At present, there are a large number of network companies providing city name registration and station building services for enterprises and institutions, all of which belong to ICP.

Basic contents of the Internet

Date：2015-07-24 Source: Shangpin China Type: website encyclopedia
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