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CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before...

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CHAPTER 6 Networks
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Page 1: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

CHAPTER 6

Networks

Page 2: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

Announcements

Quiz 1 Grades Poster

Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project

Midterm next Thursday Tuesday will be a midterm review

Page 3: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

Web Traffic and Net Neutrality

Page 4: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

What Is a Computer Network?

In a computer network, connected computers:

1.

2.

3.

© Ilin Sergey/Age Fotostock America, Inc.

Computer at organizations do not work in isolation.

Page 5: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

Size of Computer Networks

Home computer network

National computer network

Global computer network

INTERNET

Page 6: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

Types of Networks

Page 7: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

Network Fundamentals - Outline

Analog and Digital Signals Communications Media and Channels Transmission Technologies Network Protocols Types of Network Processing

Page 8: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

Analog and Digital Signals

Page 9: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

Communications Media and Channels

Twisted-pair wire

Coaxial cable

Fiber optics

Sources: deepspacedave/Shutterst ock, GIPhotoStock/Photo Researchers, Inc, Philip Hatson/Photo Researchers

Page 10: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

Transmission Technologies

Page 11: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

How messages are sent: Network Protocols

Most companies use Ethernet in their LAN

Transmission Control Protocol/Internet Protocol (TCP/IP)

Page 12: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

Message Transmission: Packet Switching

Page 13: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

Types of Network Processing

Page 14: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

Internet and World Wide Web - Outline

Organizational use (Intranet vs. Extranet) Intranet Extranet

Internet Accessing the Internet The Future of the Internet The World Wide Web

Page 15: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

Accessing the Internet

Connecting via an online service ISP – Internet Service Provider NAP – Network Access Point

Connection Methods:

Page 16: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

Addresses on the Internet

How do you get to a web address?

Domain names

www.uncw.edu

Page 17: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

The Future of the Internet

http://www.akamai.com/html/technology/dataviz1.html

http://www.internettrafficreport.com/

Page 18: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

The World Wide Web

World Wide Web

Page 19: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

Categories of Network Applications

Discovery Communication Collaboration E-Learning and Distance Learning Virtual Universities Telecommuting

How do businesses use networks to improve their operations?

Page 20: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

Network Applications: Discovery

Search engines

Metasearch engines

Browsers

Page 21: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

Network Applications: Communication

Electronic mail (e-mail)

Web-based call centers (customer call center)

Electronic chat room

Voice

Unified (integration of different forms of communication)© Mario S Ragma Jr/Age Fotostock America, Inc.

Page 22: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

Voice Communication

Two examples of Internet telephony (VoIP)

Skype

Vonage

Page 23: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

Network Applications:Collaboration

Types of collaboration: Work group Virtual group (team)

Virtual collaboration and Technologies: Collaboration software Electronic Teleconferencing E-Learning and Distance Learning

Page 24: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

Telepresence Systems

See video on Cisco Magic

Source: PRNews Foto/Polycom, Inc./NewsCom

Page 25: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

Network Applications:Telecommuting

Benefits:For Employees

For Employers

Page 26: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

Network Applications:Telecommuting

Disadvantages:For Employees

For Employers

Page 27: CHAPTER 6 Networks. Announcements Quiz 1 Grades Poster Project 3 – Access Case Due Tuesday before midnight Tuesday Class – Review and Workday on Project.

Questions

Explain how the Internet works. Assume you are talking with someone who has no knowledge of information technology (in other words, keep it very simple).

How are the network applications of communication and collaboration related? Do communication tools also support collaboration? Give examples.


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