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om nh Vi en Zo ne C Chapter Si Introduction SinhVienZone.com https://fb.com/sinhvienzonevn nh Vi en Zo ne C Business Applications Home Applications Mobile Users Social Issues Si • • • • om Uses of Computer Networks SinhVienZone.com https://fb.com/sinhvienzonevn Si nh Vi en Zo ne C om Business Applications of Networks A network with two clients and one server SinhVienZone.com https://fb.com/sinhvienzonevn Si nh Vi en Zo ne C om Business Applications of Networks (2) The client-server model involves requests and replies SinhVienZone.com https://fb.com/sinhvienzonevn nh Vi en Zo ne C Access to remote information Person-to-person communication Interactive entertainment Electronic commerce Si • • • • om Home Network Applications SinhVienZone.com https://fb.com/sinhvienzonevn Si nh Vi en Zo ne C om Home Network Applications (2) In peer-to-peer system there are no fixed clients and servers SinhVienZone.com https://fb.com/sinhvienzonevn Si nh Vi en Zo ne C om Home Network Applications (3) Some forms of e-commerce SinhVienZone.com https://fb.com/sinhvienzonevn Si nh Vi en Zo ne C om Mobile Network Users Combinations of wireless networks and mobile computing SinhVienZone.com https://fb.com/sinhvienzonevn nh Vi en Zo ne C Local Area Networks Metropolitan Area Networks Wide Area Networks Wireless Networks Home Networks Internetworks Si • • • • • • om Network Hardware SinhVienZone.com https://fb.com/sinhvienzonevn .C om Broadcast Networks Si nh Vi en Zo ne Types of transmission technology • Broadcast links • Point-to-point links 10 SinhVienZone.com https://fb.com/sinhvienzonevn Si nh Vi en Zo ne C om NSFNET The NSFNET backbone in 1988 42 SinhVienZone.com https://fb.com/sinhvienzonevn om Internet Usage Si nh Vi en Zo ne C Traditional applications (1970 – 1990) • E-mail • News • Remote login • File transfer 43 SinhVienZone.com https://fb.com/sinhvienzonevn Si nh Vi en Zo ne C om Architecture of the Internet Overview of the Internet 44 SinhVienZone.com https://fb.com/sinhvienzonevn Si nh Vi en Zo ne C om ATM Virtual Circuits A virtual circuit 45 SinhVienZone.com https://fb.com/sinhvienzonevn Si nh Vi en Zo ne C om ATM Virtual Circuits (2) An ATM cell 46 SinhVienZone.com https://fb.com/sinhvienzonevn Si nh Vi en Zo ne C om The ATM Reference Model The ATM reference model 47 SinhVienZone.com https://fb.com/sinhvienzonevn Si nh Vi en Zo ne C om The ATM Reference Model (2) The ATM layers and sublayers and their functions 48 SinhVienZone.com https://fb.com/sinhvienzonevn Si nh Vi en Zo ne C om Ethernet Architecture of the original Ethernet 49 SinhVienZone.com https://fb.com/sinhvienzonevn Si nh Vi en Zo ne C om Wireless LANs (a) Wireless networking with a base station (b) Ad hoc networking 50 SinhVienZone.com https://fb.com/sinhvienzonevn Si nh Vi en Zo ne C om Wireless LANs (2) The range of a single radio may not cover the entire system 51 SinhVienZone.com https://fb.com/sinhvienzonevn Si nh Vi en Zo ne C om Wireless LANs (3) A multicell 802.11 network 52 SinhVienZone.com https://fb.com/sinhvienzonevn nh Vi en Zo ne C Who’s Who in the Telecommunications World Who’s Who in the International Standards World Who’s Who in the Internet Standards World Si • • • om Network Standardization 53 SinhVienZone.com https://fb.com/sinhvienzonevn ITU • • ne C Radiocommunications Telecommunications Standardization Development Zo • • • om Main sectors National governments Sector members Associate members Regulatory agencies Si • • • • nh Vi en Classes of Members 54 SinhVienZone.com https://fb.com/sinhvienzonevn Si nh Vi en Zo ne C om IEEE 802 Standards The 802 working groups The important ones are marked with * The ones marked with  are hibernating The one marked with † gave up SinhVienZone.com https://fb.com/sinhvienzonevn 55 Si nh Vi en Zo ne C om Metric Units The principal metric prefixes 56 SinhVienZone.com https://fb.com/sinhvienzonevn