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A.I.S. Class 25: Outline I Learning Objectives for Chapter 4 I - PowerPoint PPT Presentation

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A.I.S. Class 25: Outline I Learning Objectives for Chapter 4 I Telecommunications I Networks I Group Work for Chapter 4 I Group Project Stage 6 Dr. Peter R Gillett November 30, 2005 1 Learning Objectives for Chapter 4 I After studying this

  1. A.I.S. Class 25: Outline I Learning Objectives for Chapter 4 I Telecommunications I Networks I Group Work for Chapter 4 I Group Project Stage 6 Dr. Peter R Gillett November 30, 2005 1

  2. Learning Objectives for Chapter 4 I After studying this chapter you should be able to: N identify the five components of a telecommunications network, N distinguish between terminals and workstations, N explain the various types of transmission links, including physical and "through the air" links, N differentiate between alternative transmission methods such as analog and digital transmission, circuit switching and packet switching, Dr. Peter R Gillett November 30, 2005 2

  3. Learning Objectives for Chapter 4 N describe in general terms the functioning of line sharing devices and switches, N explain the role of network architecture and standards, N explain the OSI telecommunications model, N distinguish between local area networks and wide area networks, N describe alternative computer network configurations including ring, star, and bus networks, N understand the various types of wide area networks, including the options for centralized data processing networks and distributed data processing networks, N explain the concept of a client/server system, Dr. Peter R Gillett November 30, 2005 3

  4. Learning Objectives for Chapter 4 N understand the architecture and functioning of the Internet, N distinguish between the Internet and Intranets, N describe the operation of electronic data interchange arrangements between organizations, N explain the concept of e-business and its emerging importance in the global economy. Dr. Peter R Gillett November 30, 2005 4

  5. Telecommunications I Terminals and workstations I Transmission links I Transmission methods I Line sharing and switching I Architecture and standards Dr. Peter R Gillett November 30, 2005 5

  6. Terminals and Workstations I Dumb terminals I Intelligent workstations I Network interface cards I Net PCs Dr. Peter R Gillett November 30, 2005 6

  7. Transmission Links I Twisted-pair cables I Coaxial cables I Fiber optic cables I Infra-red transmission I Microwaves I Satellite transmission Dr. Peter R Gillett November 30, 2005 7

  8. Transmission Methods I Analog I Digital I Circuit switching I Packet switching I Asynchronous I Synchronous Dr. Peter R Gillett November 30, 2005 8

  9. Line Sharing and Switching I Multiplexers (MUX) � time � frequency I Front-end processors I Bridges I Routers I Brouters I Gateways Dr. Peter R Gillett November 30, 2005 9

  10. Architecture and Standards I ISO’s OSI model N physical N link N network N transport N session N presentation N application Dr. Peter R Gillett November 30, 2005 10

  11. Communication Protocols I Full Duplex (Duplex) I Half Duplex (Simplex) Dr. Peter R Gillett November 30, 2005 11

  12. Networks I Local area networks I Network topologies � bus � token ring � star � hybrid I Novell NetWare I Windows 2003 Server Dr. Peter R Gillett November 30, 2005 12

  13. Networks I Wide area networks I Modems I ISDN I DSL I Cable Modems Dr. Peter R Gillett November 30, 2005 13

  14. Networks I Dedicated connections � T1 � T3 I Lines � switched � WATS � leased Dr. Peter R Gillett November 30, 2005 14

  15. Networks I Centralized data processing � point-to-point � multidrop � multiplexed I Distributed data processing I Client-server systems Dr. Peter R Gillett November 30, 2005 15

  16. Networks I Internet � Telnet � FTP � Usenet (News Groups) � E-mail � WWW � IRC � MUD I Intranets I Extranets Dr. Peter R Gillett November 30, 2005 16

  17. Networks I Electronic Data Interchange (EDI) I Electronic Funds Transfer (EFT, EFTPOS) I Value Added Network (VAN) I ASC.X12 I EDI via Internet Dr. Peter R Gillett November 30, 2005 17

  18. Electronic Commerce I Web presence I Business to consumer (B2C) � electronic retailing, banking, trading I Business to business (B2B) � e-procurement I Business to government (B2G) I Business to employees (B2E) I Individual to government Dr. Peter R Gillett November 30, 2005 18

  19. Electronic Commerce I Issues � payment N EFT N credit cards N electronic wallets N PayPal N e-cash � security � privacy � authentication and non-repudiation N WebTrust � jurisdiction and legal issues Dr. Peter R Gillett November 30, 2005 19

  20. Group Work for Chapter 4 I Discussion Questions I Problems 1 & 2 Dr. Peter R Gillett November 30, 2005 20

  21. Group Project Stage 6 I Presentation Dr. Peter R Gillett November 30, 2005 21

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