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8Chapter
Telecommunications,Networks,andtheInternet8ChapterTelecommunications,NOBJECTIVESDescribethefeaturesofacontemporarycorporatenetworkinfrastructureandkeynetworkingtechnologiesEvaluatealternativetransmissionmedia,typesofnetworks,andnetworkservicesAssesstheroleoftheInternetandtheWorldWideWebinafirm’sinformationtechnologyinfrastructure
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
OBJECTIVESDescribethefeatureOBJECTIVES(Continued)Identifyanddescribethemostimportanttoolsforcommunicationande-businessIdentifyanddescribethechallengesposedbynetworkingandtheInternetandmanagementsolutions
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
OBJECTIVES(Continued)IdentifyChallenge:Outdatednetworkingenvironment,highmaintenancecosts,andpoorserviceto19schoolsand8,000studentsSolutions:InstallaTCP/IPnetworkingenvironmentthathandlesbothvoiceanddatatraffic,andsupportsintranetforteachersStandardizedesktopoperatingsystemsandhardwareIllustratestheimportanceofusingInternet-basednetworkingtechnologiestoachievebusinessandservicegoalsManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Okanagan-SkahaSchoolDistrictCaseChallenge:OutdatednetworkingTELECOMMUNICATIONSANDNETWORKINGINTODAY’SBUSINESSWORLD
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
AnetworkingandcommunicationsrevolutionledbyInternet-basedtechnologies1billioninstantmessagesperday4billione-mailseachday65millionmusicfilesdownloadedTELECOMMUNICATIONSANDNETWORKTELECOMMUNICATIONSANDNETWORKINGINTODAY’SBUSINESSWORLD
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Estimated3.9billionphotossentovertheInternet$769billionspentintheUnitedStatesontelecommunicationsequipmentandservicesToday,networkingandtheInternetaresynonymouswithdoingbusiness.
TELECOMMUNICATIONSANDNETWORKTELECOMMUNICATIONSANDNETWORKINGINTODAY’SBUSINESSWORLD
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
TelecommunicationsspendingintheUnitedStates,2002–2007
Figure8-1Source:BureauofEconomicAnalysis,NationalIncomeandProductAccounts,2004;andeMarketerandtheTelecommunicationsIndustryAssociation,2004TELECOMMUNICATIONSANDNETWORKTELECOMMUNICATIONSANDNETWORKINGINTODAY’SBUSINESSWORLD
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Telecommunicationsenvironmentprovidesconnectivitybyprovidingcommunicationchannelsfortext,voice,andvideoimages.Thenetworkinfrastructureforalargecorporationconsistsofmanydifferentkindsofnetworksforbothdataandvoicecommunication.
MostofthesedifferentkindsofnetworksaremovingtowardsacommonInternetfoundation.TheBusinessTelecommunicationsEnvironmentTELECOMMUNICATIONSANDNETWORKTELECOMMUNICATIONSANDNETWORKINGINTODAY’SBUSINESSWORLD
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
CorporateNetworkInfrastructure
Figure8-2TELECOMMUNICATIONSANDNETWORKTELECOMMUNICATIONSANDNETWORKINGINTODAY’SBUSINESSWORLD
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Thesevenmajortrendsintelecommunications:
Rapidtechnologicalinnovationhasresultedinaproliferationofnewhardwaredevicesandnewalternativesforbusinesscommunications.Continuingtelecommunicationsderegulationhasencouragedcompetitionandcreatedmanyalternatives.NetworkingandCommunicationsTrendsTELECOMMUNICATIONSANDNETWORKTELECOMMUNICATIONSANDNETWORKINGINTODAY’SBUSINESSWORLD
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Distinctionsbetweentelephone,cabletelevision,Internet,andsatellitetelecommunicationareblurred.
GrowingdominanceofInternettechnologiesinvoice,video,anddatacommunicationsRapidgrowthin“l(fā)ast-mile”high-speedbroadbandconnectionstohomesandbusinessesNetworkingandCommunicationsTrends(Continued)TELECOMMUNICATIONSANDNETWORKTELECOMMUNICATIONSANDNETWORKINGINTODAY’SBUSINESSWORLD
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Rapidgrowthinwirelesstelephone,wirelesscomputernetworks,andmobileInternetdevices
Growingscopeofcommunication-intenseservicesandproducts
NetworkingandCommunicationsTrends(Continued)TELECOMMUNICATIONSANDNETWORKTELECOMMUNICATIONSANDNETWORKINGINTODAY’SBUSINESSWORLD
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
DecliningtransactioncostsDecliningagencycostsIncreasedagility
TheBusinessValueofTelecommunicationsandNetworkingBusinessvalueimpactsofthetelecommunicationsandNetworkingare:TELECOMMUNICATIONSANDNETWORKTELECOMMUNICATIONSANDNETWORKINGINTODAY’SBUSINESSWORLD
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
HigherqualitymanagementdecisionsDeclininggeographicalbarriersDecliningtemporalbarriers
TheextremelyrapidgrowthinbusinessnetworkingandtelecommunicationsresultsfromtheextraordinaryvalueofparticipatinginnetworksliketheInternet.
TheBusinessValueofTelecommunicationsandNetworking(Continued)TELECOMMUNICATIONSANDNETWORKTELECOMMUNICATIONSANDNETWORKINGINTODAY’SBUSINESSWORLD
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Metcalfe’sLaw
Figure8-3TELECOMMUNICATIONSANDNETWORKCONTEMPORARYNETWORKINGINFRASTRUCTURE
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Anetworkconsistsoftwoormoreconnectedcomputers.Eachcomputeronthenetworkcontainsanetworkinterfacedevicecalledanetworkinterfacecard(NIC).Theconnectionmediumforlinkingnetworkcomponentscanbeatelephonewire,coaxialcable,orradiosignalinthecaseofcellphoneandwirelesslocalareanetworks.
NetworksandCorporateInfrastructureCONTEMPORARYNETWORKINGINFRASCONTEMPORARYNETWORKINGINFRASTRUCTURE
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Thenetworkoperatingsystem(NOS)routesandmanagescommunicationsonthenetworkandcoordinatesnetworkresources.Networksalsocontainaswitchorahubactingasaconnectionpointbetweenthecomputers.Hubsareverysimpledevicesthatconnectnetworkcomponents,sendingapacketofdatatoallotherconnecteddevices.
NetworksandCorporateInfrastructure(Continued)CONTEMPORARYNETWORKINGINFRASCONTEMPORARYNETWORKINGINFRASTRUCTURE
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Aswitchhasmoreintelligencethanahubandcanfilterandforwarddatatoaspecifieddestination.Switchesareusedwithinindividualnetworks.Arouterisaspecialcommunicationsprocessorusedtoroutepacketsofdatathroughdifferentnetworks,ensuringthatthemessagesentgetstothecorrectaddress.
NetworksandCorporateInfrastructure(Continued)CONTEMPORARYNETWORKINGINFRASManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
ComponentsofaSimpleNetwork
CONTEMPORARYNETWORKINGINFRASTRUCTURE
Figure8-4ManagementInformationSystemsCONTEMPORARYNETWORKINGINFRASTRUCTURE
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Client/ServerComputingPacketSwitchingTCP/IPandConnectivity
KeyDigitalNetworkingTechnologiesCONTEMPORARYNETWORKINGINFRASCONTEMPORARYNETWORKINGINFRASTRUCTURE
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Client/servercomputingisadistributedcomputingmodelinwhichmuchoftheprocessingpowerislocatedwithinsmall,inexpensiveclientcomputers.Thepowerfulclientsarelinkedtooneanotherthroughanetworkthatiscontrolledbyanetworkservercomputer.Theserversetstherulesofcommunicationforthenetworkandprovideseveryclientwithanaddresssootherscanfinditonthenetwork.Client/ServerComputing:CONTEMPORARYNETWORKINGINFRASCONTEMPORARYNETWORKINGINFRASTRUCTURE
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Inpacket-switchednetworks,messagesarefirstbrokendownintosmallbundlesofdatacalledpackets.Thesepacketsaresentalongdifferentcommunicationpathsandthenthepacketsarereassembledoncetheyreachtheirdestinations.PacketSwitching:CONTEMPORARYNETWORKINGINFRASCONTEMPORARYNETWORKINGINFRASTRUCTURE
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Packetswitchingmakesmoreefficientuseofthecommunicationscapacityofanetwork.Thepacketsincludeinformationfordirectingthepackettotherightaddressandforcheckingtransmissionerrorsalongwiththedata.
PacketSwitching:(Continued)CONTEMPORARYNETWORKINGINFRASManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Packed-SwitchedNetworksandPacketCommunications
CONTEMPORARYNETWORKINGINFRASTRUCTURE
Figure8-5ManagementInformationSystemsCONTEMPORARYNETWORKINGINFRASTRUCTURE
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
TCP/IPisthecommunicationsprotocolusedbytheInternetandallInternetdevices.
TCP/IPprovidesforbreakingupdigitalmessagesintopackets,routingthemtotheproperaddresses,andthenreassemblingthemintocoherentmessages.TCP/IPusesasuiteofprotocols:TCPandIP.TCP/IPandConnectivity:CONTEMPORARYNETWORKINGINFRASCONTEMPORARYNETWORKINGINFRASTRUCTURE
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
HandlesthemovementofdatabetweencomputersEstablishesaconnectionbetweenthecomputers,sequencesthetransferofpackets,andacknowledgesthepacketssent
TransmissionControlProtocol(TCP):CONTEMPORARYNETWORKINGINFRASCONTEMPORARYNETWORKINGINFRASTRUCTURE
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
ResponsibleforthedeliveryofpacketsIncludesthedisassemblingandreassemblingofpacketsduringtransmission
InternetProtocol(IP):CONTEMPORARYNETWORKINGINFRASManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
TheTCP/IPReferenceModelCONTEMPORARYNETWORKINGINFRASTRUCTURE
Figure8-6ManagementInformationSystemsCONTEMPORARYNETWORKINGINFRASTRUCTURE
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
TwistedWireCoaxialCableFiberOpticsandOpticalNetworksWirelessTransmissionPhysicalTransmissionMediaThedifferentkindsofphysicaltransmissionmediausedbythenetworksare:CONTEMPORARYNETWORKINGINFRASManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
FunctionsoftheModemCONTEMPORARYNETWORKINGINFRASTRUCTURE
Figure8-7ManagementInformationSystemsManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
TypesofNetworksCONTEMPORARYNETWORKINGINFRASTRUCTURE
Type
AreaLocalAreaNetwork(LAN)Upto500meters(halfamile);anofficeorfloorofabuildingCampusAreaNetwork(CAN)Upto1,000meters(amile);acollegecampusorcorporatefacilityMetropolitanAreaNetwork(MAN)AcityormetropolitanareaWideAreaNetwork(WAN)TranscontinentalorglobalareaManagementInformationSystemsManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
NetworkTopologiesCONTEMPORARYNETWORKINGINFRASTRUCTURE
Figure8-8ManagementInformationSystemsCONTEMPORARYNETWORKINGINFRASTRUCTURE
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Framerelay:Packagesdataintoframesforhigh-speedtransmissionoverreliablecircuitsthatrequirelesserrorcheckingthanpacketswitchingBroadbandNetworkServicesandTechnologiesAnumberofnetworkservicesandtechnologiesareavailabletocompaniesthatneedhigh-speedtransmissionoraccesstotheInternet.CONTEMPORARYNETWORKINGINFRASCONTEMPORARYNETWORKINGINFRASTRUCTURE
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
AsynchronousTransferMode(ATM):Parcelsdataintouniform53-bytecellsforhigh-speedtransmission;cantransmitdata,video,andaudiooverthesamenetworkIntegratedServicesDigitalNetwork(ISDN):Dial-upnetworkaccessstandardthatcanintegratevoice,data,andvideoservices
BroadbandNetworkServicesandTechnologies(Continued)CONTEMPORARYNETWORKINGINFRASCONTEMPORARYNETWORKINGINFRASTRUCTURE
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
DigitalSubscriberLine(DSL):Seriesoftechnologiesforhigh-capacitytransmissionovercopperwireCablemodem:Serviceforhigh-speedtransmissionofdataovercableTVlinesthataresharedbymanyusersTlines:Dedicatedlinesforhigh-speedsecuredatatransmissionandInternetconnection
BroadbandNetworkServicesandTechnologies(Continued)CONTEMPORARYNETWORKINGINFRASTHEINTERNET
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
AnetworkcomposedofcomputersandotherdevicesthatarelogicallylinkedtogetherbyauniqueaddressspacebasedontheInternetProtocolTechnically,theInternetisaglobalinformationsystemdefinedbythreecharacteristics:THEINTERNETManagementInformTHEINTERNET(Continued)ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
AnetworkwherenetworkdevicesareabletosupportcommunicationsusingTCP/IPorothercompatibleprotocolsAnetworkthatprovideshigh-levelserviceslayeredonacommunicationandnetworkinfrastructure
THEINTERNET(Continued)ManageTHEINTERNET
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
ADomainNameSystem(DNS)convertsIPaddressestoEnglish-likedomainnames.
Thedomainnameisthenamethatcorrespondstotheunique32-bitnumericIPaddressforeachcomputerconnectedtotheInternet.
InternetAddressing,Architecture,andGovernanceEverydeviceconnectedtotheInternethasaunique32-bitnumericIPaddress.TheDomainNameSystem:
THEINTERNETManagementInformTHEINTERNET
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
DNSserversmaintainadatabasecontainingIPaddressesmappedtotheircorrespondingdomainnames.ToaccessacomputerontheInternet,usersneedonlyspecifyitsdomainname.
InternetAddressing,Architecture,andGovernance(Continued)TheDomainNameSystem:THEINTERNETManagementInformManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
TheDomainNameSystemTHEINTERNET
Figure8-9ManagementInformationSystemsTHEINTERNET
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
InternetProtocolversion4(IPv4):A32-bitstringofnumbersorganizedintofoursetsofnumbersrangingfrom0to255;containsupto4billionaddressesInternetProtocolversion6(IPv6):128-bitaddresses,containsoveraquadrillionpossibleuniqueaddresses
LimitationsonIPAddresses:IPv4andIPv6:THEINTERNETManagementInformTHEINTERNET
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
InternetArchitecture:InternetNetworkArchitectureFigure8-10THEINTERNETManagementInformTHEINTERNET
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
InternetArchitectureBoard(IAB)InternetCorporationforAssignedNamesandNumbers(ICANN)InternetGovernance:Noone“owns”theInternet,however,worldwideInternetpoliciesareestablishedbythefollowingorganizations:THEINTERNETManagementInformTHEINTERNET
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
InternetNetworkInformationCenter(InterNIC)InternetEngineeringSteeringGroup(IESG)InternetEngineeringTaskForce(IETF)InternetSociety(ISOC)WorldWideWebConsortium(W3C)
InternetGovernance:(Continued)THEINTERNETManagementInformTHEINTERNET
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
E-mail:Person-to-personmessaging;documentsharingUsenetnewsgroups:DiscussiongroupsonelectronicbulletinboardsLISTSERVs:Discussiongroupsusinge-mailmailinglistserversChattingandinstantmessaging:Interactiveconversations
MajorInternetServicesTable8-6THEINTERNETManagementInformTHEINTERNET
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Telnet:LoggingontoonecomputersystemanddoingworkonanotherFTP:TransferringfilesfromcomputertocomputerWorldWideWeb:Retrieving,formatting,anddisplayinginformation(includingtext,audio,graphics,andvideo)usinghypertextlinks
MajorInternetServices(Continued)Table8-6(Continued)THEINTERNETManagementInformTHEINTERNET
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Client/serverComputingontheInternetFigure8-11THEINTERNETManagementInformTHEINTERNET
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
TheWorldWideWeb:
HypertextWebserversSearchingforinformationontheWeb
TheInternetandBusinessValueTHEINTERNETManagementInformTHEINTERNET
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
MajorWebServerProvidersFigure8-12Source:BasedondatafromNetcraftWebServerSurvey,July2004,/netcraft.THEINTERNETManagementInformTHEINTERNET
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
TheInternetlowerssearchcostsSearchenginesIntelligentagentsandshoppingbotsBroadcastandpushtechnologyThesemanticWebSearchingandFindingInformationontheInternetTHEINTERNETManagementInformTHEINTERNET
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Intranets:
Anintranetisaninternalorganizationalnetworkthatprovidesaccesstodataacrossabusinessfirm.Extranets:
Allowauthorizedvendorsandcustomerstohavelimitedaccesstoitsinternalintranet
IntranetsandExtranetsTHEINTERNETManagementInformTECHNOLOGIESANDTOOLSFORCOMMUNICATIONANDE-BUSINESS
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
E-MailChattingandInstantMessagingElectronicDiscussionGroups
TECHNOLOGIESANDTOOLSFORCOMTECHNOLOGIESANDTOOLSFORCOMMUNICATIONANDE-BUSINESS
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Groupware:Providescapabilitiesforsupportingenterprise-widecommunicationandcollaborativeworkTeamware:EnablescompaniestoimplementcollaborationapplicationseasilythatcanbeaccessedusingWebbrowsersoftwareGroupware,Teamware,andElectronicConferencingTECHNOLOGIESANDTOOLSFORCOMTECHNOLOGIESANDTOOLSFORCOMMUNICATIONANDE-BUSINESS
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Electronicconferencingtools:Providesavirtualconferencetablewhereparticipantscanviewandmodifydocumentsandslidesorsharetheirthoughtsandcommentsusingchat,audio,orvideoGroupware,Teamware,andElectronicConferencing(Continued)TECHNOLOGIESANDTOOLSFORCOMTECHNOLOGIESANDTOOLSFORCOMMUNICATIONANDE-BUSINESS
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Internettelephony:EnablecompaniestouseInternettechnologyfortelephonevoicetransmissionovertheInternetorprivatenetworksVoiceoverIP(VoIP)technology:UsestheInternetProtocol(IP)todelivervoiceinformationindigitalformusingpacketswitchingUnifiedmessagingsystems:Combinevoicemail,e-mail,andfaxessotheycanallbeobtainedfromonesystemInternetTelephony
TECHNOLOGIESANDTOOLSFORCOMManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
HowIPTelephonyWorksTECHNOLOGIESANDTOOLSFORCOMMUNICATIONANDE-BUSINESS
Figure8-13ManagementInformationSystemsManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
TheGrowthofInternetTelephonyTECHNOLOGIESANDTOOLSFORCOMMUNICATIONANDE-BUSINESS
Figure8-14Source:Infotechandauthors.ManagementInformationSystemsTECHNOLOGIESANDTOOLSFORCOMMUNICATIONANDE-BUSINESS
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
AvirtualprivatenetworkbasedontheInternetProtocolprovidesasecureconnectionbetweentwopointsacrosstheInternet,enablingprivatecommunicationstotravelsecurelyoverthepublicinfrastructureVirtualPrivateNetworks
TECHNOLOGIESANDTOOLSFORCOMManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
AVirtualPrivateNetworkusingtheInternetTECHNOLOGIESANDTOOLSFORCOMMUNICATIONANDE-BUSINESS
Figure8-15ManagementInformationSystemsMANAGEMENTOPPORTUNITIES,CHALLENGES,ANDSOLUTIONSManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Firmshavetheopportunitytoradicallyreducethecostofcommunicatingwiththeiremployees,vendors,andcustomers.Therearemanynewopportunitiestodevelopnewbusinessmodelsbasedonthenewtelecommunicationstechnologies.ManagementOpportunities:
MANAGEMENTOPPORTUNITIES,CHALMANAGEMENTOPPORTUNITIES,CHALLENGES,ANDSOLUTIONSManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
LossofmanagementcontrolOrganizationalchangerequirementsScalability,Reliability,andSecurityManagementChallenges:MANAGEMENTOPPORTUNITIES,CHALMANAGEMENTOPPORTUNITIES,CHALLENGES,ANDSOLUTIONSManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
DevelopingastrategicnetworkingplanManagingthechangeSolutionGuidelines:MANAGEMENTOPPORTUNITIES,CHAL8Chapter
Telecommunications,Networks,andtheInternet8ChapterTelecommunications,NOBJECTIVESDescribethefeaturesofacontemporarycorporatenetworkinfrastructureandkeynetworkingtechnologiesEvaluatealternativetransmissionmedia,typesofnetworks,andnetworkservicesAssesstheroleoftheInternetandtheWorldWideWebinafirm’sinformationtechnologyinfrastructure
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
OBJECTIVESDescribethefeatureOBJECTIVES(Continued)Identifyanddescribethemostimportanttoolsforcommunicationande-businessIdentifyanddescribethechallengesposedbynetworkingandtheInternetandmanagementsolutions
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
OBJECTIVES(Continued)IdentifyChallenge:Outdatednetworkingenvironment,highmaintenancecosts,andpoorserviceto19schoolsand8,000studentsSolutions:InstallaTCP/IPnetworkingenvironmentthathandlesbothvoiceanddatatraffic,andsupportsintranetforteachersStandardizedesktopoperatingsystemsandhardwareIllustratestheimportanceofusingInternet-basednetworkingtechnologiestoachievebusinessandservicegoalsManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Okanagan-SkahaSchoolDistrictCaseChallenge:OutdatednetworkingTELECOMMUNICATIONSANDNETWORKINGINTODAY’SBUSINESSWORLD
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
AnetworkingandcommunicationsrevolutionledbyInternet-basedtechnologies1billioninstantmessagesperday4billione-mailseachday65millionmusicfilesdownloadedTELECOMMUNICATIONSANDNETWORKTELECOMMUNICATIONSANDNETWORKINGINTODAY’SBUSINESSWORLD
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Estimated3.9billionphotossentovertheInternet$769billionspentintheUnitedStatesontelecommunicationsequipmentandservicesToday,networkingandtheInternetaresynonymouswithdoingbusiness.
TELECOMMUNICATIONSANDNETWORKTELECOMMUNICATIONSANDNETWORKINGINTODAY’SBUSINESSWORLD
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
TelecommunicationsspendingintheUnitedStates,2002–2007
Figure8-1Source:BureauofEconomicAnalysis,NationalIncomeandProductAccounts,2004;andeMarketerandtheTelecommunicationsIndustryAssociation,2004TELECOMMUNICATIONSANDNETWORKTELECOMMUNICATIONSANDNETWORKINGINTODAY’SBUSINESSWORLD
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Telecommunicationsenvironmentprovidesconnectivitybyprovidingcommunicationchannelsfortext,voice,andvideoimages.Thenetworkinfrastructureforalargecorporationconsistsofmanydifferentkindsofnetworksforbothdataandvoicecommunication.
MostofthesedifferentkindsofnetworksaremovingtowardsacommonInternetfoundation.TheBusinessTelecommunicationsEnvironmentTELECOMMUNICATIONSANDNETWORKTELECOMMUNICATIONSANDNETWORKINGINTODAY’SBUSINESSWORLD
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
CorporateNetworkInfrastructure
Figure8-2TELECOMMUNICATIONSANDNETWORKTELECOMMUNICATIONSANDNETWORKINGINTODAY’SBUSINESSWORLD
ManagementInformationSystemsChapter8
Telecommunications,Networks,andtheInternet
Thesevenmajortrendsintelecommunications:
Rapidtechnologicalinnovationhasresultedinaproliferationofnewhardwaredevicesandnewalternativesforbusinesscommunications.Continuingtelecommunicationsderegulationhasencouragedcompetitionandcreatedmanyalternatives.NetworkingandCommunicationsTrendsTELECOMMUN
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