Slide introduction to information ssstem 10th obien chap006 eng

Trends in TelecommunicationsMore electronic commerce, enterprise collaboration, online business operations and strategic advantage in markets More vendors, carriers, alliances, and netw

C h a p t e r

6

Telecommunications and

Networks

2 Chapter Objectives

trends in the industries, technologies, and applications of telecommunications and

networks.

and types of telecommunications networks.

telecommunications network hardware and media.

Trends in Telecommunications

More electronic commerce, enterprise collaboration, online business operations and strategic advantage in markets

More vendors, carriers, alliances, and network services, accelerated by deregulation & Internet growth

Extensive Internet, interconnected local & global digital networks, improved transmission channels

Industry Trends

Technology Trends

Application Trends

4 Telecommunications Strategic Capabilities

Overcome Geographic Barriers: Capture information about

business transactions from remote locations.

Overcome Geographic Barriers: Capture information about

business transactions from remote locations.

Overcome Time Barriers: Provide information to remote locations immediately after it is requested.

Overcome Time Barriers: Provide information to remote locations immediately after it is requested.

Overcome Cost Barriers: Reduce the cost of more traditional

means of communications.

Overcome Cost Barriers: Reduce the cost of more traditional

means of communications.

Overcome Structural Barriers: Support linkages for competitive advantage.

Overcome Structural Barriers: Support linkages for competitive advantage.

Internet Applications

E-mail

Internet Relay Chat

Telnet

Search Engines

Protocol (FTP)

Popular Uses

of the Internet

Popular Uses

of the Internet

6 Basic Components in a Telecommunications Network

Telecommunications

Software

Telecommunications

Software

1

4

5 2

PCs, NCs,

and Other

Telecommunications Channels and Media Telecommunications

Processors

Wide Area Networks

8 Local Area Networks

Network Server

Network Server

Shared Database and Software Packages

Shared Printer

PC PC

Internetwork Processor to Other Networks

Other E-Business Networks

Router Intranet

Server

Host System

Intranet Server

The Internet

Fire wall

Fire wall Router

Extranet

Network Server

Network

Superserver

Host System Superserver

Client

User Interface

Application Processing

Application Control Distributed Database

Central database control Heavy duty processing

NetPC

Browser-based User Interface

Web OS Application Software

Application

DBMS

DB

1 Telecommunications Communication Media

• Terrestrial

Microwave

Satellites

Technologies

• Multiplexers

• Fire walls

3 Network Topologies

4 Network Protocols: The OSI Architecture

Application Layer

Presentation Layer

Session Layer

Transport Layer

Network Layer

Data Link Layer

Physical Layer

Seven

Layers of

the OSI

Communications

Architecture

5 The Internet’s TCP/IP

Application or Process Layer

Internet Protocol (IP) Host-to-Host Transport Layer

Network Interface Physical Layer

Application Layer Presentation

Layer Session Layer

Transport Layer Network Layer Data Link Layer Physical Layer

6 Chapter Summary

enterprises that use the Internet, intranets, and other telecommunications networks to support E-Business.

and fiercely competitive environment with many vendors, carriers, and services

• A major trend is towards pervasive use of the

Internet and its technologies to build

interconnected enterprise and global networks.

7 Chapter Summary (cont)

telecommunications network are:

– Terminals,

networks, including wide area networks

(WANs) and local area networks (LANs).

8 Chapter Summary (cont)

alternatives include telecommunications

media, processors, software, channels, and architectures.