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What Is the Internet?

What Is the Internet?. Definition A Revolution in Communications A Short History of the Internet Internationalization of the Internet Who Governs the Internet? Who Pays for the Internet? What You Find on the Internet? What Can You do on the Internet?. Definition. LAN MAN WAN internet

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What Is the Internet?

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  1. What Is the Internet? Definition A Revolution in Communications A Short History of the Internet Internationalization of the Internet Who Governs the Internet? Who Pays for the Internet? What You Find on the Internet? What Can You do on the Internet?

  2. Definition • LAN • MAN • WAN • internet • Internet • Internet is a global network of computers

  3. A Revolutionin Communications • The Internet enables you to reach millions of people. • The Internet provides an inexpensive means of communication for anyone who has a computer and some basic skills.

  4. A Short History of the Internet • 1969 : DARPA funded ARPAnet (Advance Research Project Agency) • 1972 : The First Email • 1983 : • DARPA funded a research project for TCP/IP • TCP/IP was adopted as a standard protocol for ARPAnet and integrated into Unix operating system. • ARPAnet was devided into; “milnet” for military use and small ARPAnet. • 1986 : NSF (National Science Foundation) NSFnet became the backbone of the Internet

  5. A Short History of the Internet • 1988 : ARPAnet closed • 1989 : Internet was accepted internationally • 1995 : NSF closed • The backbone was taken over by (MCI, Sprint,NetCom) • 2000 : NSF and MCI are going to build a backbone with an expected speed of 155 Mbps.

  6. Internationalization of the Internet • Scandinavian Countries • European Countries • Asian • Pacific • Africa

  7. Who Governs the Internet? • None Voluteers: • Internet Society (ISOC) - nonprofit - promotes global communication. • Internet Architechture Board (IAB) - allocates resources such as addresses. • Engineering Task Force (IETF) - operational and technical.

  8. Who pays the Internet? • The majority of Internet service profiders survive by collecting Internet subscription fees from customers. • Local networks connect to one another through business deals.

  9. What Can You Do on the Internet? • Exchange e-mail • Browse documents • Download and Upload data or software (ftp) • Participate in discussion groups • Offer information and services

  10. Addressing • Internet address = 32 bit. example: • 10100111.11001101.10011001.00110100 • each part is converted into a decimal number between 0 and 256. • 167.205.153.52 (dotted octet)

  11. Naming Address • e-mail address user name: Bejo computer address: 167.205.153.52. bejo@mail.unsoed.ac.id user host subnet domain country

  12. Internet Domain • Tipe-tipe domain: .edu Educational institutions .ac Academic institutions .com Commercial Internet sites .mil Military installation .net Internet service providers

  13. www(World wide web) URL: http://www.unsoed.ac.id/Index.htm uniform resourcelocator web server document protocol URL: ftp://ftp.itb.ac.id

  14. Modem Router Modem Router Modem Router Modem Router Router

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