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Management Information Systems 8/eManagement Information Systems 8/eChapter 8 Telecommunications and NetworksChapter 8 Telecommunications and Networks88
Management Information Systems 8/eManagement Information Systems 8/eChapter 8 Telecommunications and NetworksChapter 8 Telecommunications and Networks
• What alternative network services are What alternative network services are available to our organization?available to our organization?
• What telecommunications applications What telecommunications applications can be used for electronic commerce and can be used for electronic commerce and electronic business?electronic business?
Management Information Systems 8/eManagement Information Systems 8/eChapter 8 Telecommunications and NetworksChapter 8 Telecommunications and Networks
COMPONENTS AND FUNCTIONS OF A TELECOMMUNICATIONS SYSTEM
• Wireless transmission:Wireless transmission: Microwave, Microwave, Satellites, Paging systems, Cellular Satellites, Paging systems, Cellular telephones, Personal communication telephones, Personal communication Services, Personal digital assistants, Services, Personal digital assistants, Mobile data networksMobile data networks
Management Information Systems 8/eManagement Information Systems 8/eChapter 8 Telecommunications and NetworksChapter 8 Telecommunications and Networks
COMPONENTS AND FUNCTIONS OF A TELECOMMUNICATIONS SYSTEM
• Front-end processor:Front-end processor: Manages Manages communications for the host computercommunications for the host computer
• Concentrator:Concentrator: Collects and temporarily stores Collects and temporarily stores messagesmessages
• Controller:Controller: Supervises communication traffic Supervises communication traffic
• Multiplexer:Multiplexer: Enables single communication Enables single communication channel to carry data transmissions channel to carry data transmissions
Management Information Systems 8/eManagement Information Systems 8/eChapter 8 Telecommunications and NetworksChapter 8 Telecommunications and Networks
COMMUNICATIONS NETWORKS
• Star Network:Star Network: All computers and other devices All computers and other devices are connected to a central host computerare connected to a central host computer
• Bus Network:Bus Network: Links a number of computers by a Links a number of computers by a single circuit single circuit
• Ring Network:Ring Network: All computers are linked by a All computers are linked by a closed loop closed loop
Management Information Systems 8/eManagement Information Systems 8/eChapter 8 Telecommunications and NetworksChapter 8 Telecommunications and Networks
Wireless LANsWireless LANs
• Wi-Fi (802.11b) standard: Up to 11 Mbps, low cost, Wi-Fi (802.11b) standard: Up to 11 Mbps, low cost, high-speed mobile Internet access, links work groupshigh-speed mobile Internet access, links work groups
• Bluetooth standard: Up to 720 Kbps, small personal Bluetooth standard: Up to 720 Kbps, small personal area networksarea networks
Private Branch Exchanges, Local Area Networks (LANs), and Wide Area Networks (WANs)
• Integrated Services Digital Network (ISDN), Digital Integrated Services Digital Network (ISDN), Digital subscriber line (DSL), Cable modems, T1 line - subscriber line (DSL), Cable modems, T1 line - BroadbandBroadband
Management Information Systems 8/eManagement Information Systems 8/eChapter 8 Telecommunications and NetworksChapter 8 Telecommunications and Networks
Electronic Mail and GroupwareElectronic Mail and Groupware
• E-mail:E-mail: Eliminates telephone tag and Eliminates telephone tag and costly long-distance telephone chargescostly long-distance telephone charges
• Groupware:Groupware: Enables work groups at Enables work groups at different locations to participate in different locations to participate in discussion forums and work on shared discussion forums and work on shared documents and projectsdocuments and projects
Electronic Commerce and Electronic Business Technologies
ELECTRONIC COMMERCE AND ELECTRONIC BUSINESS TECHNOLOGIES
Management Information Systems 8/eManagement Information Systems 8/eChapter 8 Telecommunications and NetworksChapter 8 Telecommunications and Networks
Teleconferencing, data conferencing, Teleconferencing, data conferencing, and videoconferencingand videoconferencing• Teleconferencing:Teleconferencing: Ability to confer Ability to confer
with a group of people simultaneouslywith a group of people simultaneously
• Data conferencing:Data conferencing: Two or more users Two or more users can edit and modify data files can edit and modify data files simultaneouslysimultaneously
• Videoconferencing:Videoconferencing: Participants are Participants are able to see each other over video able to see each other over video screensscreens
Electronic Commerce and Electronic Business Technologies
ELECTRONIC COMMERCE AND ELECTRONIC BUSINESS TECHNOLOGIES
Management Information Systems 8/eManagement Information Systems 8/eChapter 8 Telecommunications and NetworksChapter 8 Telecommunications and Networks
Digital information services, distance Digital information services, distance
learning and E-Learninglearning and E-Learning
• Distance learning:Distance learning: Education or training Education or training delivered over a distance to individuals in delivered over a distance to individuals in one or more locationsone or more locations
• E-learning:E-learning: Instruction delivered online Instruction delivered online using the Internet or private networksusing the Internet or private networks
Electronic Commerce and Electronic Business Technologies
ELECTRONIC COMMERCE AND ELECTRONIC BUSINESS TECHNOLOGIES
Management Information Systems 8/eManagement Information Systems 8/eChapter 8 Telecommunications and NetworksChapter 8 Telecommunications and Networks
• Direct computer-to-computer exchange Direct computer-to-computer exchange between two organizations of standard between two organizations of standard business transaction documentsbusiness transaction documents
Electronic Data Interchange (EDI)
ELECTRONIC COMMERCE AND ELECTRONIC BUSINESS TECHNOLOGIES
Management Information Systems 8/eManagement Information Systems 8/eChapter 8 Telecommunications and NetworksChapter 8 Telecommunications and Networks88