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Technology Guide 4 Telecommunication & Internet Agenda Telecommunication terminology Communication media Network architecture concepts Enterprise networking Internet Telecommunication Terminology Telecommunication Data communication Components Hardware Media Software Protocols

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Technology Guide 4

Telecommunication & Internet


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Agenda

  • Telecommunication terminology

  • Communication media

  • Network architecture concepts

  • Enterprise networking

  • Internet


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Telecommunication Terminology

  • Telecommunication

  • Data communication

  • Components

    • Hardware

    • Media

    • Software

    • Protocols

    • Providers


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Telecommunication Terminology

  • Signals

    • Analog: amplitude & frequency

    • Digital

  • Modem

  • Multiplexer

    • Frequency division, time division, statistical time division, wavelength division

  • Front-end process

  • Concentrator


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Agenda

  • Telecommunication terminology

  • Communication media

  • Network architecture concepts

  • Enterprise networking

  • Internet


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Communication Media

  • Cable media

  • Wireless media


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Cable media

  • Types

    • Twisted-pair wire

    • Coaxial cable

    • Fiber optics

  • Pros & Cons


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Wireless media

  • Types

    • Microwave

    • Satellite

      • Geostationary earth orbit (22,300)

      • Medium earth orbit (6,000)

      • Low earth orbit (400 – 1,000)

    • Radio

    • Infrared

  • Pros & cons


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Wireless media

  • Applications

    • Cellular radio technology

    • Mobile computing

    • Personal communication system

    • Personal digital assistance


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Agenda

  • Telecommunication definition

  • Communication media

  • Network architecture concepts

  • Enterprise networking

  • Internet


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Network Architecture Concepts

  • Transmission characteristics

  • Protocols

  • Open system interconnection (OSI)

  • Interface

  • Topology

  • Types


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Transmission characteristics

  • Speed

    • Bits per second (bps)

    • Baud rate (Hertz)

  • Direction

    • Simplex

    • Half-duplex

    • Full-duplex

  • Mode

    • Asynchronous

    • Synchronous

  • Accuracy

    • Horizontal

    • Vertical

    • Cyclic redundancy checking


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Protocols

  • Definition

    • Rules & procedures for transmission

  • Protocol types

    • Token passing

    • Carrier sense multiple access/collision detection

    • Transmission control protocol/internet protocol (TCP/IP)


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Open system interconnection (OSI)

  • Physical layer

  • Data link layer

  • Network layer

  • Transport layer

  • Session layer

  • Presentation layer

  • Application layer


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Interface

  • Transmission interfaces

    • Parallel data transfer

    • Serial data transfer

    • Universal asynchronous receiver/transmitter

  • Network interfaces

    • Interface card

    • Routers

    • Bridges

    • Gateways


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Topology

  • Ring

  • Bus

  • Star

  • Web

  • Hybrid


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Types

  • LAN

    • Private branch exchange (PBX)

    • Centrex

  • MAN

  • WAN

  • VAN

    • Packet switching

    • Frame relay

    • Asynchronous transfer mode (ATM)

    • Integrated services digital network (ISDN)

    • Digital subscriber line (DSL)

    • Fiber distributed data interface

  • Virtual private network (VPN)

  • Backbone


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Agenda

  • Telecommunication terminology

  • Communication media

  • Network architecture concepts

  • Enterprise networking

  • Internet


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Enterprise Networking - Types

  • Client/server

    • Distributed presentation

    • Remote presentation

    • Distributed logic

    • Remote data management

    • Distributed data management

  • Peer-to-peer

  • Intranet

  • Extranet

  • Internet


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Enterprise NetworkingOpen Systems Goals

  • Connectivity

  • Portability

  • Interoperability

  • Scalability

  • Others?


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Agenda

  • Telecommunication terminology

  • Communication media

  • Network architecture concepts

  • Enterprise networking

  • Internet


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Internet

  • Internet kiosks

  • Protocols: TCP/IP

  • Telnet

  • Internet Service provider (ISP)

  • World wide web (Web)

  • Browser

  • Web site/web page


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Internet

  • Search engines or metasearch engines

  • Uniform resource locator (URL)

  • Hypertext transfer protocol (http)

  • Usages

    • Research

    • E-mail

    • Chat program

    • Newsgroup

    • Electronic bulletin boards (EBBs)

    • E-commerce


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Points to Remember

  • Telecommunication terminology Communication media

  • Network architecture concepts

  • Enterprise networking

  • Internet


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Discussion Questions

  • Why does an organization need a reliable network?

  • What are the general selection criteria for a network?

  • What kind networks are useful to an university such as CSUS?

  • What kind networks are needed by a company such as Intel?


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Assignment

  • Review technology guides 1-2 & 4 and chapters 1-5

  • Read chapter 6

  • Group assignment

  • Research paper


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