1. Next Back MAP MAP D-1 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Extended Learning Module D Network Basics

2. Next Back MAP MAP D-2 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Main Map Peer-to-Peer Home Networks Peer-to-Peer Home Networks Peer-to-Peer Home Networks Peer-to-Peer Home Networks Internet Access Internet Access Internet Access Internet Access Business Networks Business Networks Business Networks Business Networks LANs, MANs, WANs, and Communications Media LANs, MANs, WANs, and Communications Media LANs, MANs, WANs, and Communications Media LANs, MANs, WANs, and Communications Media Communications Service Providers Communications Service Providers Communications Service Providers Communications Service Providers

3. Next Back MAP MAP D-3 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Whether you are Whether you are  Surfing the web  Accessing software at school or  Sending email Your computer is part of a network Introduction

4. Next Back MAP MAP D-4 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Computer network - two or more computers connected so that they can communicate with each other and share information, software, peripheral devices, and/or processing power. Computer network - two or more computers connected so that they can communicate with each other and share information, software, peripheral devices, and/or processing power. Introduction

5. Next Back MAP MAP D-5 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Introduction Basic Principles of Networks 1. Each computer must have a network card. 2. A network has at least one connecting device. 3. There must be communications media connecting the network hardware devices. 4. Each computer must have software that supports the movement of information.

6. Next Back MAP MAP D-6 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Introduction

7. Next Back MAP MAP D-7 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Peer-to-Peer Home Networks  Peer-to-Peer Home Networks  Internet Access Internet Access Business Networks Business Networks LANs, MANs, WANs, and Communications Media LANs, MANs, WANs, and Communications Media Communications Service Providers Communications Service Providers Peer-to-Peer Home Networks

8. Next Back MAP MAP D-8 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Peer-to-peer network - a network in which a small number of computers share hardware, software and/or information. Peer-to-peer network - a network in which a small number of computers share hardware, software and/or information. Peer-to-Peer Home Network

9. Next Back MAP MAP D-9 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved You can setup a small peer-to-peer network You can setup a small peer-to-peer network  With Ethernet cards and dedicated cables  Using the existing phone wiring Peer-to-Peer Home Network

10. Next Back MAP MAP D-10 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Peer-to-Peer Home Network Home Network Components Network interface card (NIC) - an expansion card or a PC Card that connects your computer to a network and provides the doorway for information to flow in and out. Network interface card (NIC) - an expansion card or a PC Card that connects your computer to a network and provides the doorway for information to flow in and out.

11. Next Back MAP MAP D-11 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Peer-to-Peer Home Network Home Network Components Ethernet card - the most common type of network interface card. Ethernet card - the most common type of network interface card.

12. Next Back MAP MAP D-12 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Peer-to-Peer Home Network Home Network Components Network hub - a device that connects multiple computers into a network with only one communications link at a time. Network hub - a device that connects multiple computers into a network with only one communications link at a time. Switch - a device that connects multiple computers into a network in which multiple communications links can be in operation simultaneously. Switch - a device that connects multiple computers into a network in which multiple communications links can be in operation simultaneously.

13. Next Back MAP MAP D-13 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Peer-to-Peer Home Network Home Network Components Figure D.1 Hub, Switch, and Router as Roadway Intersections page 428

14. Next Back MAP MAP D-14 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Peer-to-Peer Home Network Home Network Components Router - a device that acts as a smart hub connecting computers into a network, and it also separates your network from any other network it’s connected to. Router - a device that acts as a smart hub connecting computers into a network, and it also separates your network from any other network it’s connected to.

15. Next Back MAP MAP D-15 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Peer-to-Peer Home Network Home Network Components Figure D.2 Typical Home Network page 429

16. Next Back MAP MAP D-16 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Peer-to-Peer Home Network Home Network Components Firewall - software and/or hardware that protects a computer or network from intruders. Firewall - software and/or hardware that protects a computer or network from intruders. Cat 5, or Category 5 cable - a better-constructed version of the phone twisted- pair cable. Cat 5, or Category 5 cable - a better-constructed version of the phone twisted- pair cable.

17. Next Back MAP MAP D-17 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Peer-to-Peer Home Network Wireless Access to Your Home Network Wireless network access point or wireless access point - a device that allows computers to access a wired network using radio waves. Wireless network access point or wireless access point - a device that allows computers to access a wired network using radio waves.

18. Next Back MAP MAP D-18 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Peer-to-Peer Home Network Wireless Access to Your Home Network WiFi, Wireless Fidelity, or IEEE 802.11b - a way of transmitting information in wave form that is reasonably fast and is often used for notebooks. WiFi, Wireless Fidelity, or IEEE 802.11b - a way of transmitting information in wave form that is reasonably fast and is often used for notebooks. Bluetooth technology - provides entirely wireless connections for all kinds of communication devices. Bluetooth technology - provides entirely wireless connections for all kinds of communication devices.

19. Next Back MAP MAP D-19 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Peer-to-Peer Home Network Home Network with Existing Phone Wiring Home PNA (Home Phone line Networking Alliance) - allows you to network your home computers using telephone wiring. Home PNA (Home Phone line Networking Alliance) - allows you to network your home computers using telephone wiring. PNA adapter card - an expansion card that you put into your computer to act as an doorway for information flowing in and out. PNA adapter card - an expansion card that you put into your computer to act as an doorway for information flowing in and out.

20. Next Back MAP MAP D-20 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Peer-to-Peer Home Network Home Network with Existing Phone Wiring Figure D.3 Home PDA Network page 430

21. Next Back MAP MAP D-21 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Peer-to-Peer Home Networks Peer-to-Peer Home Networks Internet Access  Internet Access  Business Networks Business Networks LANs, MANs, WANs, and Communications Media LANs, MANs, WANs, and Communications Media Communications Service Providers Communications Service Providers Internet Access

22. Next Back MAP MAP D-22 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Internet Access Ways to Access the Internet at Home 1. Telephone line and a telephone or dial-up modem. 2. Telephone line and a Digital Subscriber Line (DSL) modem. 3. Cable TV line and a cable modem. 4. Satellite dish and a satellite modem. 5. Provider that offers wireless connection for your notebook.

23. Next Back MAP MAP D-23 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Internet Access Broadband - a high-capacity telecommunications pipeline capable of providing high-speed Internet service. Broadband - a high-capacity telecommunications pipeline capable of providing high-speed Internet service.

24. Next Back MAP MAP D-24 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Internet Access Telephone or Dial-Up Connection Telephone modem - a device that connects your computer to your phone line so that you can access another computer or network. Telephone modem - a device that connects your computer to your phone line so that you can access another computer or network. Figure D.4 The Role of a Telephone Modem page 431

25. Next Back MAP MAP D-25 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Internet Access Digital Subscriber Line (DSL) Digital Subscriber Line (DSL) - a high-speed Internet connection using phone lines, which allows you to use your phone for voice communications at the same time. Digital Subscriber Line (DSL) - a high-speed Internet connection using phone lines, which allows you to use your phone for voice communications at the same time. Figure D.5 DSL Internet Access page 432

26. Next Back MAP MAP D-26 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Internet Access Cable Modem Cable modem - a device that uses your TV cable to deliver an Internet connection. Cable modem - a device that uses your TV cable to deliver an Internet connection. Figure D.6 Cable Internet Access page 433

27. Next Back MAP MAP D-27 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Internet Access Internet over Satellite Satellite modem - a modem that allows you to get Internet access from a satellite dish. Satellite modem - a modem that allows you to get Internet access from a satellite dish. Figure D.7 Satellite Internet Access page 434

28. Next Back MAP MAP D-28 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Internet Access Internet Access on Multiple Computers Network address translator (NAT) – swaps messages between the private, internal IP addresses, and the public IP address, when moving information between the Internet and network computers. Network address translator (NAT) – swaps messages between the private, internal IP addresses, and the public IP address, when moving information between the Internet and network computers.

29. Next Back MAP MAP D-29 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Internet Access Wireless Internet Connection Wireless Internet service provider (wireless ISP) - does the same job as standard Internet service providers except that you don’t need a wired connection for access. Wireless Internet service provider (wireless ISP) - does the same job as standard Internet service providers except that you don’t need a wired connection for access.

30. Next Back MAP MAP D-30 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Internet Access Wireless Internet Connection Personal digital assistant (PDA) - a small hand-held computer that helps you surf the Web and perform simple tasks such as note taking, calendaring, appointment scheduling, and maintaining an address book. Personal digital assistant (PDA) - a small hand-held computer that helps you surf the Web and perform simple tasks such as note taking, calendaring, appointment scheduling, and maintaining an address book.  Palms and Handspring - run on the Palm Operating System  PocketPCs - run on Pocket PC OS

31. Next Back MAP MAP D-31 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Peer-to-Peer Home Networks Peer-to-Peer Home Networks Internet Access Internet Access Business Networks  Business Networks  LANs, MANs, WANs, and Communications Media LANs, MANs, WANs, and Communications Media Communications Service Providers Communications Service Providers Business Networks

32. Next Back MAP MAP D-32 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Business Networks Client/server network - a network in which one or more computers are servers and provide services to the other computers which are called clients. Client/server network - a network in which one or more computers are servers and provide services to the other computers which are called clients.

33. Next Back MAP MAP D-33 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Business Networks Client/Server: A Business View Client/server networks differ according to three factors: Client/server networks differ according to three factors:  Where the processing for the presentation of information occurs.  Where the processing of logic or business rules occurs.  Where the data management component (DBMS) and information (database) are located.

34. Next Back MAP MAP D-34 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Business Networks Client/Server: A Business View Figure D.8 Model 5: A Personal Data Warehouse in a Client/Server Implementation page 436

35. Next Back MAP MAP D-35 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Business Networks Client/Server: A Business View Team Work What Sort of Computer Network Does Your School Have?

36. Next Back MAP MAP D-36 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Business Networks Client/Server: A Business View The Five Models of Client/Server 1. Distributed Presentation  The server handles almost all functions, including a major portion of the presentation. 2. Remote Presentation  The client handles all presentation functions. 3. Distributed Logic  The server handles all data management and the client handles all presentation formatting, and the logic processing is shared.

37. Next Back MAP MAP D-37 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Business Networks Client/Server: A Business View 4. Remote Data Management  The server handles data management only, and the client processes business rules and formats the presentation of results. 5. Distributed Data Management  The client handles all presentation formatting and business rule processing, and both the server and client share data management duties.

38. Next Back MAP MAP D-38 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Business Networks Client/Server: A Business View Figure D.9 Five Models for Client/Server Implementation page 438

39. Next Back MAP MAP D-39 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Business Networks Client/Server: A Business View On Your Own How Is a Server Different From a Client?

40. Next Back MAP MAP D-40 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Business Networks Client/Server: A Physical View There are many physical implementations of client/server networks There are many physical implementations of client/server networks Conceptually, large networks work on the same principles as small ones Conceptually, large networks work on the same principles as small ones

41. Next Back MAP MAP D-41 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Business Networks Client/Server: A Physical View You still need You still need  Network cards  Hubs  Switches  Routers  Communications media and  Network operating systems

42. Next Back MAP MAP D-42 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Business Networks Client/Server: A Business View Figure D.10 Model 3: Client/Server Implementation for Employee Pay Raises page 440

43. Next Back MAP MAP D-43 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Business Networks Client/Server: A Physical View Communications protocol (protocol) - a set of rules that every computer follows to transfer information. Communications protocol (protocol) - a set of rules that every computer follows to transfer information.

44. Next Back MAP MAP D-44 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Business Networks Client/Server: A Physical View Figure D.11 A Typical Client / Server Network for a Medium- Sized Business page 441

45. Next Back MAP MAP D-45 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Peer-to-Peer Home Networks Peer-to-Peer Home Networks Internet Access Internet Access Business Networks Business Networks LANs, MANs, WANs, and Communications Media  LANs, MANs, WANs, and Communications Media  Communications Service Providers Communications Service Providers LANs, MANs, MANs and Communications Media

46. Next Back MAP MAP D-46 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved LANs, MANs, WANs, and Communications Media Classification of Networks by Geographic Distance Local area network (LAN) - covers a limited geographic distance, such as an office, building, or a group of buildings in close proximity to each other. Local area network (LAN) - covers a limited geographic distance, such as an office, building, or a group of buildings in close proximity to each other. Municipal area network (MAN) - covers a metropolitan area. Municipal area network (MAN) - covers a metropolitan area. Wide area network (WAN) – covers a large geographic distances, such as a state, a country, or even the entire world. Wide area network (WAN) – covers a large geographic distances, such as a state, a country, or even the entire world.

47. Next Back MAP MAP D-47 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved LANs, MANs, WANs, and Communications Media Telecommunications Media: The Paths That Carry Information Communications media - the paths, or physical channels, in a network over which information travels. Communications media - the paths, or physical channels, in a network over which information travels. Wired communications media - transmit information over a closed, connected path. Wired communications media - transmit information over a closed, connected path. Wireless communications media - transmit information through the air. Wireless communications media - transmit information through the air.

48. Next Back MAP MAP D-48 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved LANs, MANs, WANs, and Communications Media Telecommunications Media: The Paths That Carry Information Wired Communications Media include: Wired Communications Media include:  Twisted-pair cable  Coaxial cable  Optical Fiber

49. Next Back MAP MAP D-49 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved LANs, MANs, WANs, and Communications Media Telecommunications Media: The Paths That Carry Information Wireless Communications Media Include: Wireless Communications Media Include:  Microwave  Satellite  Infrared

50. Next Back MAP MAP D-50 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved LANs, MANs, WANs, and Communications Media Bandwidth Bandwidth - refers to the amount of information that a communications medium can transfer in a given amount of time. Bandwidth - refers to the amount of information that a communications medium can transfer in a given amount of time.

51. Next Back MAP MAP D-51 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved LANs, MANs, WANs, and Communications Media Wired Communications Media The simplest type of twisted-pair phone cabling (Cat 1) provides a slow, fairly reliable path for information at up to 64 kilobits per second (Kbps). The simplest type of twisted-pair phone cabling (Cat 1) provides a slow, fairly reliable path for information at up to 64 kilobits per second (Kbps). A better type (Cat 3) provides up to 10 megabits per second (Mbps). A better type (Cat 3) provides up to 10 megabits per second (Mbps).

52. Next Back MAP MAP D-52 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved LANs, MANs, WANs, and Communications Media Wired Communications Media Coaxial cable (coax) - one central wire surrounded by insulation, a metallic shield, and a final case of insulating material. Coaxial cable (coax) - one central wire surrounded by insulation, a metallic shield, and a final case of insulating material. Coax is the kind of cable that delivers cable television transmissions and also carries satellite TV from the dish to your house. Coax is the kind of cable that delivers cable television transmissions and also carries satellite TV from the dish to your house.

53. Next Back MAP MAP D-53 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved LANs, MANs, WANs, and Communications Media Wired Communications Media Optical fiber - uses a very thin glass or plastic fiber through which pulses of light travel. Optical fiber - uses a very thin glass or plastic fiber through which pulses of light travel.

54. Next Back MAP MAP D-54 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved LANs, MANs, WANs, and Communications Media Wireless Communications Media Wireless communications media radiate information into the air, either very narrowly beamed or in many directions like ripples from a pebble tossed into a pond. Wireless communications media radiate information into the air, either very narrowly beamed or in many directions like ripples from a pebble tossed into a pond.

55. Next Back MAP MAP D-55 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved LANs, MANs, WANs, and Communications Media Infrared and Omnidirectional Microware for Short Distances Infrared - a wireless communications medium that uses radio waves to transmit signals or information. Infrared - a wireless communications medium that uses radio waves to transmit signals or information. Microwave transmission - a type of radio transmission. Microwave transmission - a type of radio transmission.  Bluetooth  WiFi

56. Next Back MAP MAP D-56 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved LANs, MANs, WANs, and Communications Media Directional Microware for Medium Distances Repeater - a device that receives a radio signal, strengthens it and sends it on. Repeater - a device that receives a radio signal, strengthens it and sends it on. Figure D.12 Microwave Transmission page 444

57. Next Back MAP MAP D-57 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved LANs, MANs, WANs, and Communications Media Satellites for Long Distance Communications satellites - microwave repeaters in space. Communications satellites - microwave repeaters in space. Figure D.13 Satellite Transmission page 445

58. Next Back MAP MAP D-58 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Peer-to-Peer Home Networks Peer-to-Peer Home Networks Internet Access Internet Access Business Networks Business Networks LANs, MANs, WANs, and Communications Media LANs, MANs, WANs, and Communications Media Communications Service Providers  Communications Service Providers  Communications Service Providers

59. Next Back MAP MAP D-59 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Communications Service Providers Communications service providers - third parties who furnish the conduit for information. Communications service providers - third parties who furnish the conduit for information. Public network - a network on which your organization competes for time with others. Public network - a network on which your organization competes for time with others.

60. Next Back MAP MAP D-60 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Communications Service Providers Figure D.14 Comparison of Types of Network Ownership page 446

61. Next Back MAP MAP D-61 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Communications Service Providers Private network - communications media that your organization owns or exclusively leases to connect networks or network components. Private network - communications media that your organization owns or exclusively leases to connect networks or network components. Value-added network (VAN) - a semipublic network that provides services beyond the movement of information from one place to another. Value-added network (VAN) - a semipublic network that provides services beyond the movement of information from one place to another.

62. Next Back MAP MAP D-62 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Communications Service Providers Virtual private network (VPN) – uses software to establish a secure channel on the Internet for transmitting data. Virtual private network (VPN) – uses software to establish a secure channel on the Internet for transmitting data.

63. Next Back MAP MAP D-63 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Communications Service Providers Key Considerations for Communications Media To determine the most appropriate communications medium, you must consider: To determine the most appropriate communications medium, you must consider:  Capacity  Reliability  Cost  Distance  Mobility Team Work What’s the Big Deal with Frequencies?

64. Next Back MAP MAP D-64 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Summary Student Learning Outcomes 1. Identify and describe the four basic concepts on which networks are built. 2. Describe how to set up a small peer-to-peer network at home. 3. Compare and contrast the various Internet connection possibilities. 4. Describe client/server business networks from a business and physical point of view.

65. Next Back MAP MAP D-65 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Summary Student Learning Outcomes 5. Define and compare local area networks (LANs), municipal area networks (MANs), and wide area networks (WANs). 6. Compare and contrast the types of communications media.

66. Next Back MAP MAP D-66 Management Information Systems for the Information Age Second Canadian Edition Copyright 2004 The McGraw-Hill Companies, Inc. All rights reserved Summary Assignments & Exercises 1. Investigate Cell Phone Technology 2. Find out about Personal Digital Assistants 3. What Are the Internet Access Options in Your Area? 4. Investigate Building Your Own Home Network 5. Investigate Satellite Radio