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Principles of Information Systems, Sixth Edition Telecommunications and Networks Chapter 6.

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Presentation on theme: "Principles of Information Systems, Sixth Edition Telecommunications and Networks Chapter 6."— Presentation transcript:

1

2 Principles of Information Systems, Sixth Edition Telecommunications and Networks Chapter 6

3 Principles of Information Systems, Sixth Edition Principles and Learning Objectives Effective communication is essential to organizational success. –Define the terms communication and telecommunications and describe the components of a telecommunications system.

4 Principles of Information Systems, Sixth Edition Principles and Learning Objectives An unmistakable trend of communications technology is that more people are able to send and receive all forms of information over greater distances at a faster rate. –Identify three basic types of communications media and discuss the basic characteristics of each. –Identify several types of telecommunications hardware devices and discuss the role that each plays. –Identify the benefits associated with a telecommunications network. –Name three distributed processing alternatives and discuss their basic features. –Define the term network topology and identify five alternatives.

5 Principles of Information Systems, Sixth Edition Principles and Learning Objectives The effective use of telecommunications and networks can turn a company into an agile, powerful, and creative organization, giving it a long-term competitive advantage. –Identify and briefly discuss several telecommunications applications.

6 Principles of Information Systems, Sixth Edition Overview of Telecommunications Systems

7 Principles of Information Systems, Sixth Edition Communications

8 Principles of Information Systems, Sixth Edition Communications

9 Principles of Information Systems, Sixth Edition Telecommunications

10 Principles of Information Systems, Sixth Edition Telecommunications Media

11 Principles of Information Systems, Sixth Edition Basic Communications Channel Characteristics Simplex channel Half-duplex Full-duplex channel

12 Principles of Information Systems, Sixth Edition Bandwidth The range of frequencies that an electronic signal occupies on a given transmission medium.

13 Principles of Information Systems, Sixth Edition Broadband Telecommunications in which a wide band of frequencies is available to transmit information, allowing more information to be transmitted in a given amount of time.

14 Principles of Information Systems, Sixth Edition Shannon’s Fundamental Law of Information Theory The information carrying capacity of a channel is directly proportional to its bandwidth - the broader the bandwidth, the more information that can be carried.

15 Principles of Information Systems, Sixth Edition Types of Media Twisted-Pair Coaxial Cable Fiber-Optic Cable Microwave Transmission

16 Principles of Information Systems, Sixth Edition Twisted-Pair Wire Cable

17 Principles of Information Systems, Sixth Edition Coaxial Cable

18 Principles of Information Systems, Sixth Edition Fiber Optic Cable

19 Principles of Information Systems, Sixth Edition Microwave Transmission

20 Principles of Information Systems, Sixth Edition Satellite Transmission

21 Principles of Information Systems, Sixth Edition Cellular Transmission

22 Principles of Information Systems, Sixth Edition Telecommunications Devices

23 Principles of Information Systems, Sixth Edition Devices Modems: –Analog –Digital Special-purpose modems Multiplexers Front-end processors

24 Principles of Information Systems, Sixth Edition Modems

25 Principles of Information Systems, Sixth Edition Multiplexers

26 Principles of Information Systems, Sixth Edition Front-End Processors

27 Principles of Information Systems, Sixth Edition Carriers and Services

28 Principles of Information Systems, Sixth Edition Carriers and Services Common carriers Value-added carriers Switched and dedicated lines Private branch exchange (PBX) Wide-area telecommunications service (WATS) Phone and dialing services Digital subscriber line (DSL) T1 Carrier

29 Principles of Information Systems, Sixth Edition Integrated Services Digital Network (ISDN)

30 Principles of Information Systems, Sixth Edition Carriers and Services

31 Principles of Information Systems, Sixth Edition Networks & Distributed Processing

32 Principles of Information Systems, Sixth Edition Basic Processing Strategies Centralized processing Decentralized processing Distributed processing

33 Principles of Information Systems, Sixth Edition Network Concepts and Considerations Network topology –Ring network –Bus network –Hierarchical –Star network –Hybrid network Network types –Local Area Networks –Wide Area Networks –International networks –Home and small business networks

34 Principles of Information Systems, Sixth Edition Network Topology

35 Principles of Information Systems, Sixth Edition Network Topology

36 Principles of Information Systems, Sixth Edition Network Topology

37 Principles of Information Systems, Sixth Edition Local Area Networks

38 Principles of Information Systems, Sixth Edition Wide Area Networks

39 Principles of Information Systems, Sixth Edition Home and Small Business Networks

40 Principles of Information Systems, Sixth Edition Terminal-to-Host

41 Principles of Information Systems, Sixth Edition File Server

42 Principles of Information Systems, Sixth Edition Client/Server

43 Principles of Information Systems, Sixth Edition Communications Software and Protocols

44 Principles of Information Systems, Sixth Edition Communications Software Network operating systems (NOS) Network management software

45 Principles of Information Systems, Sixth Edition Communications Protocols Open Systems Interconnection (OSI) model Transmission Control Protocol/Internet Protocol (TCP/IP) Systems Network Architecture (SNA) Ethernet Asynchronous Transfer Mode (TM) Bluetooth

46 Principles of Information Systems, Sixth Edition Open Systems Interconnection (OSI) Model

47 Principles of Information Systems, Sixth Edition Open Systems Interconnection (OSI) Model

48 Principles of Information Systems, Sixth Edition Network Interconnectivity Technology

49 Principles of Information Systems, Sixth Edition Bridge, Routers, and Gateways

50 Principles of Information Systems, Sixth Edition Telecommunications and Applications

51 Principles of Information Systems, Sixth Edition Telecommunications and Applications Voice mail Electronic software distribution Telecommuting Videoconferencing Electronic data interchange (EDI)

52 Principles of Information Systems, Sixth Edition Videoconferencing

53 Principles of Information Systems, Sixth Edition Electronic Data Interchange (EDI)

54 Principles of Information Systems, Sixth Edition Public Network Services

55 Principles of Information Systems, Sixth Edition Summary Communications - any process that permits information to pass from a sender to one or more receivers Telecommunications media - twisted-pair wire cable, coaxial cable, and fiber-optic cable Modems - convert signals from digital to analog for transmission, then back to digital Ethernet - the most widely installed local area network (LAN) technology

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