Sub topic   : History of Internet                          *         1
Recap In the previous class, you have learnt about     • An internet     • History of Internetworking     • Internetworkin...
Objectives    On completion of this period, you would be able to know    about•     What is an Internet ?•     History of ...
The Internet• Internet sometimes called simply “the net” is not at all a  network• It is a vast collection of different ne...
The Internet                 contd…..• An “internet” (lower case letter i ) is two or more  networks that can communicate ...
The Internet                  contd…..“The Internet is a structured and organized communicationsystem that has brought a w...
backbone  Regional ISPPOP                                             Server farm                         NAP             ...
History of Internet• In 1960’s main frame computers are stand alone  machines• The Advanced Research Project Agency (ARPA)...
History of Internet                 contd….• Each host computer would be attached to a specialized computer called an inte...
History of Internet                 contd….• In 1973 Vict.cerf and Bob khan presented a paper  on transmission control pro...
Advantages of Internet • The Internet has revolutionized many aspects of our   daily lives • It has affected the ways we d...
Advantages of Internet             contd…. • Read a news paper from a distant city • Looked up a local movie schedule • Ma...
The Internet Today• The internet today is made up of many wide and local area  networks joined by connecting devices and s...
The Internet Today                contd….• There are International service providers, national  service providers, Regiona...
Fig. 2 Hierarchical Organization of the InternetISP9                  ISP                  ISP                  ISP       ...
National ISPNational ISP                     x            National ISP                             NAP x                  ...
SummaryIn this class, you have learnt about       • Internet       • History of Internet       • Advantages of Internet   ...
Quiz1. The Internet came in to existence in the year      a)1968      b)1969      c)1970                            *     ...
Quiz2. The protocols for Internet were designed by   a) Vict.cerf and Bob khan   b) Albert Einstein   c) Neapier          ...
Quiz3. TCP is responsible for        a). Datagram routing        b). Segmentation        c). Error detection              ...
Quiz4. Internet is run by     a) Government     b) Private companies     c) Both a and b                               *  ...
Questions1.What is Internet ?2.List the uses an Internet3.Write brief history of Internet4.Explain the hierarchical organi...
Assignment1.   Write the history of Internet2.   Explain different application of Internet                                ...
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His.internet.50

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History of Internet
Advantages of Internet
Internet today

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His.internet.50

  1. 1. Sub topic : History of Internet * 1
  2. 2. Recap In the previous class, you have learnt about • An internet • History of Internetworking • Internetworking challenges • Open System Interconnection Reference Model • Inter network Addressing * 2
  3. 3. Objectives On completion of this period, you would be able to know about• What is an Internet ?• History of Internet• Advantages of Internet• Internet today * 3
  4. 4. The Internet• Internet sometimes called simply “the net” is not at all a network• It is a vast collection of different networks that uses certain common protocols• It provides common services to networks• It is not planned by any one and is not controlled by any one * 4
  5. 5. The Internet contd…..• An “internet” (lower case letter i ) is two or more networks that can communicate with each other• The most notable internet is called “ Internet” (upper case letter I) a collaboration of more than hundreds of thousands of interconnected networks * 5
  6. 6. The Internet contd…..“The Internet is a structured and organized communicationsystem that has brought a wealth of information to ourfingertips and organized it for our use” * 6
  7. 7. backbone Regional ISPPOP Server farm NAP Telephone system Router Corporate LAN Fig.1 Overview of Internet * 7
  8. 8. History of Internet• In 1960’s main frame computers are stand alone machines• The Advanced Research Project Agency (ARPA) in the department of defense was interested in finding a way to connect computers• In 1967, at the Association of computing machinery (ACM) meeting ARPA presented its idea for ARPANET, a small network of connected computers * 8
  9. 9. History of Internet contd….• Each host computer would be attached to a specialized computer called an interface message processor (IMP)• Each IMP had to be able to communicate with each other IMP’s as well as with its own attached host• By 1969, ARPANET was a reality and four Universities were connected via the IMP’s to form a network * 9
  10. 10. History of Internet contd….• In 1973 Vict.cerf and Bob khan presented a paper on transmission control protocols (TCP) to achieve end to end delivery of packets and on the concepts such as encapsulation ,datagram, and functions of gateways• Later TCP are split in to transmission control protocols and internet protocols• Internetworking protocols became known as TCP/IP * 10
  11. 11. Advantages of Internet • The Internet has revolutionized many aspects of our daily lives • It has affected the ways we do business and the ways we spend our leisure time • Perhaps you have sent e-mail to a business associate • Paid a utility bill * 11
  12. 12. Advantages of Internet contd…. • Read a news paper from a distant city • Looked up a local movie schedule • May be researched a medical topic • Booked a hotel reservation etc… all by using Internet “Internet has brought a wealth of information to our fingertips and organized it fir our use” * 12
  13. 13. The Internet Today• The internet today is made up of many wide and local area networks joined by connecting devices and switching stations• It is continually adding new addresses and networks and networks of defunct companies are being removed• Today most end users who want Internet connection use the services of Internet Service Provider (ISP) * 13
  14. 14. The Internet Today contd….• There are International service providers, national service providers, Regional service providers and local service providers• The Internet is run by private companies not by the government * 14
  15. 15. Fig. 2 Hierarchical Organization of the InternetISP9 ISP ISP ISP X X X X Regional ISP ……. Regional ISP Structure X X of a national National ISP ISP * 15
  16. 16. National ISPNational ISP x National ISP NAP x x National ISP National ISP Interconnection of national ISPs * 16
  17. 17. SummaryIn this class, you have learnt about • Internet • History of Internet • Advantages of Internet • The Internet today * 17
  18. 18. Quiz1. The Internet came in to existence in the year a)1968 b)1969 c)1970 * 18
  19. 19. Quiz2. The protocols for Internet were designed by a) Vict.cerf and Bob khan b) Albert Einstein c) Neapier * 19
  20. 20. Quiz3. TCP is responsible for a). Datagram routing b). Segmentation c). Error detection * 20
  21. 21. Quiz4. Internet is run by a) Government b) Private companies c) Both a and b * 21
  22. 22. Questions1.What is Internet ?2.List the uses an Internet3.Write brief history of Internet4.Explain the hierarchical organization of Internet 22
  23. 23. Assignment1. Write the history of Internet2. Explain different application of Internet 23

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