CHAPTER 6 Networks. Size of Computer Networks Home computer network National computer network Global computer network.

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Presentation transcript:

CHAPTER 6 Networks

Size of Computer Networks Home computer network National computer network Global computer network

Local Area Networks

Enterprise Network

Communications Media and Channels Twisted-pair wire Coaxial cable Fiber optics Sources: deepspacedave/Shutterst ock, GIPhotoStock/Photo Researchers, Inc, Philip Hatson/Photo Researchers

Network Protocols Ethernet Transmission Control Protocol/Internet Protocol (TCP/IP)

Packet Switching

Analog and Digital Signals

Types of Network Processing Client/server computing Peer-to-peer processing © Matthias Pahl/Age Fotostock America, Inc. © Toh Kheng Ho/Age Fotostock America, Inc.

An Intranet © Corbis/Age Fotostock America, Inc.

Addresses on the Internet IP v 4 32 bits128 bits IP v 6

The World Wide Web Not the same thing as the Internet Home page Uniform resource locator © Ilin Sergey/Age Fotostock America, Inc.

Internet Address example Top level domain: edu Name of the organization: Auburn University Name of the specific computer: business

Publication of Material in Foreign Languages

Voice Communication Two examples of Internet telephony (VoIP) Skype Vonage

Collaboration Work group Virtual group (team) Source: Howard Kingsnorth/The Image Bank/Getty Images, Inc.

Crowdsourcing © YURI ACURS/Age Fotostock America, Inc.

Telepresence Systems See video on Cisco Magicvideo Source: PRNews Foto/Polycom, Inc./NewsCom