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Computer Networks

Computer Networks. Lecture 3. Lecture Summary. Network (continue). Topics discussed in this section:. Distributed Processing Network Criteria Lecture 3 Content Physical Structures Network Models Categories of Networks Interconnection of Networks: Internetwork. Covered in Lecture 2.

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Computer Networks

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  1. Computer Networks Lecture 3

  2. Lecture Summary Network (continue) Topics discussed in this section: • Distributed Processing • Network Criteria Lecture 3 Content • Physical Structures • Network Models • Categories of Networks • Interconnection of Networks: Internetwork Covered in Lecture 2

  3. Categories of topology 1.3

  4. A fully connected mesh topology (five devices) 1.4

  5. A star topology connecting four stations 1.5

  6. A bus topology connecting three stations 1.6

  7. A ring topology connecting six stations 1.7

  8. A hybrid topology: a star backbone with three bus networks 1.8

  9. An isolated LAN connecting 12 computers to a hub in a closet 1.9

  10. LAN, MAN & WAN Introduction to Computer Networks • Network in small geographical Area (Room, Building or a Campus) is called LAN (Local Area Network) • Network in a City is call MAN (Metropolitan Area Network) • Network spread geographically (Country or across Globe) is called WAN (Wide Area Network)

  11. Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level

  12. Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level

  13. Click to edit Master text styles • Second level • Third level • Fourth level • Fifth level

  14. WANs: a switched WAN and a point-to-point WAN 1.14

  15. A heterogeneous network made of four WANs and two LANs 1.15

  16. Hierarchical organization of the Internet 1.16

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