The Internet is a huge computer network that connects hundreds of computers and communication devices all over the world using common communication specifications.
It is a global communication network system that connects networks and devices operated by various organizations using standardized communication standards collectively called " TCP / IP ", and is widely used for various kinds of business such as individuals, companies, public institutions etc. entity to use, important information of humankind that exceeds the country's border infrastructure has been widely used as.
Various functions, services, and systems are built and provided on the Internet, and Web (WWW: World Wide Web) that links a huge number of documents to each other , and electronic devices that can transmit and receive messages between users like a letter mail ( e-mail : electronic mail), etc. is one example thereof. Today many of the information and services on the Internet are provided through the Web, so on a daily basis they refer to the Web as the Internet or the Internet in many cases, but strictly speaking, the Web is one of functions and services on the Internet It is only one.
There is no single entity that manages and operates the entire Internet, and the networks operated by various organizations are distributed networks that are connected to each other. However, there are international organizations ( ICANN , IETF , W3C, etc.) that manage and supervise identification information and technical standards shared across the Internet, such as IP address , domain name , port number , communication protocol specification .
In order to connect to the Internet, it is necessary to connect to a network already participating in the Internet, and connect to a network operated by a company, a university, a telecommunications carrier etc. via a communication line . In order to use the Internet for individuals and homes, in many cases, they contract with a specialized operator "ISP" (Internet Service Provider) that mediates connection, and connect via a line of a communication company.
The origin of the Internet was developed as an information network linking academic institutions with a network connecting American universities and laboratories at the end of the 1960's by communication lines. Commercial use was lifted at the end of the 1980s, and when the Web was developed in the mid 1990s, it began to spread rapidly to enterprises and families, and it began to be applied to various uses. In the beginning, a method of converting data into voice signals using a telephone line and transmitting and receiving them was the mainstream, but nowadays constant connection by optical fiber lines and data communication by mobile phone line are widely used.
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It is a global communication network system that connects networks and devices operated by various organizations using standardized communication standards collectively called " TCP / IP ", and is widely used for various kinds of business such as individuals, companies, public institutions etc. entity to use, important information of humankind that exceeds the country's border infrastructure has been widely used as.
Various functions, services, and systems are built and provided on the Internet, and Web (WWW: World Wide Web) that links a huge number of documents to each other , and electronic devices that can transmit and receive messages between users like a letter mail ( e-mail : electronic mail), etc. is one example thereof. Today many of the information and services on the Internet are provided through the Web, so on a daily basis they refer to the Web as the Internet or the Internet in many cases, but strictly speaking, the Web is one of functions and services on the Internet It is only one.
There is no single entity that manages and operates the entire Internet, and the networks operated by various organizations are distributed networks that are connected to each other. However, there are international organizations ( ICANN , IETF , W3C, etc.) that manage and supervise identification information and technical standards shared across the Internet, such as IP address , domain name , port number , communication protocol specification .
In order to connect to the Internet, it is necessary to connect to a network already participating in the Internet, and connect to a network operated by a company, a university, a telecommunications carrier etc. via a communication line . In order to use the Internet for individuals and homes, in many cases, they contract with a specialized operator "ISP" (Internet Service Provider) that mediates connection, and connect via a line of a communication company.
The origin of the Internet was developed as an information network linking academic institutions with a network connecting American universities and laboratories at the end of the 1960's by communication lines. Commercial use was lifted at the end of the 1980s, and when the Web was developed in the mid 1990s, it began to spread rapidly to enterprises and families, and it began to be applied to various uses. In the beginning, a method of converting data into voice signals using a telephone line and transmitting and receiving them was the mainstream, but nowadays constant connection by optical fiber lines and data communication by mobile phone line are widely used.
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