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1、Electronic Commerce Electronic Commerce is a specialized compulsory course for graduates majoring in Electronic Commerce. It prepares students solid foundation and new thoughts for proceeding courses. Its main contents include Technology Infrastructure, Selling & Marketing on the Web, B2B strategies

2、, Online Auctions, Virtual Communities, the Environment of EC, EC Security, Payment Systems for EC, and Planning for EC, etc It is one of the first Chinese-English bilingual-teaching courses in Information Management Institution of Guangdong Commercial Studies University. Several features are unique

3、 to this course. Firstly, it is managerial orientation without neglecting importance of the technology. It comprehensively introduces foundation theories, knowledge and technologies of E -Commerce to the students, and guides to deep insights into the nature and essential principles of E-commerce. Se

4、condly, it adopts original English text books in teaching to broaden students mind from the global perspective. Thirdly, it integrates theories and practices of E-commerce to enhance the academic quality and practice capability of students. Case:Covad Learning Objectives n Network & network telecomm

5、unication protocol n Internet & Internet address structure n Internet access technology n Network data management technology EC infrastructural facilities EC infrastructural facilities The Basis of Computer Network Network Communication Protocol Internet Network Program Technology EC infrastructural

6、 facilities EC infrastructural facilities The Basis of Computer Network Network Communication Protocol Internet Network Program Technology Definition of Computer Network Computer Network Classification Function of Computer Network The Basis of Computer Networkn Definition of Computer NetworkThe comp

7、uter network refers to a system that physically links the computers with independent functions which are distributed in different geographic locations via various of communication apparatus and circuit (like telephone, microwave, cable, fiber-optical and satellite, etc) and realizes mutual communica

8、tion according to network protocol so as to share the software, hardware and data resources. The Basis of Computer Networkn Definition of Computer NetworkThe Basis of Computer Networkn Computer Network Classification Network typesAbbreviationThe approximate distributiveHost computers are in the same

9、Local Area NetworkLAN 10MRom100MBuilding1KMCampusMetropolitan Area NetworkMAN10KMCityWide Area NetworkWAN100KMCountryThe Basis of Computer Networkn Computer Network Classification (a) Bus Network (b) Ring Network (c) Star Network(d) Tree Network(e) Net NetworkThe Basis of Computer NetworknFunction o

10、f Computer NetworkSharing of Software and Hardware Resources Document Transmission E-mail Distributed Database Network Management EC infrastructural facilities EC infrastructural facilities The Basis of Computer Network Network Communication Protocol Internet Network Program Technology OSI and IEEE8

11、02 Protocol TCP/IP Protocol Suite WLAN Communication Protocol Network Communication Protocoln OSI and IEEE802 ProtocolOSI Model Application layer, A Presentation layer, P Session layer, S Transport layer, T Network layer, N Data link layer, DL Physical layer, PH Application layer, A Presentation lay

12、er, P Session layer, S Transport layer, T Network layer, N Data link layer, DL Physical layer, PH Computer AComputer B0101110010110011Network Communication Protocoln OSI and IEEE802 ProtocolIEEE 802 Protocol standard involves: IEEE 802.1 standard stipulates the corresponding relationship between IEE

13、E 802.2 standard and OSI reference model as well as provision of high-standard interface protocol IEEE 802.2 standard stipulates the function and service of LLC. IEEE 802.3 standard stipulates the access method of CSMA/CD (Carrier Sense Multiple Access with Collision Detection) Bus-mastering and the

14、 rules of physical layer IEEE 802.4 standard stipulates the access method of Token Bus-mastering and the rules of physical layer. IEEE 802.5 standard stipulates the access method of Token Ring and the rules of physical layer. Network Communication ProtocolnTCP/IP Protocol SuiteNetwork Interface Inte

15、rnet Layer Transport Layer Application Layer HTTP Protocol Network Communication ProtocolnTCP/IP Protocol SuiteClientServerEstablish the connectionSend the asking informationSend the answering informationClose the connectionNetwork Communication ProtocolnWLAN Communication ProtocolApplication on Sal

16、es Application on Logistics Application on Electric Power Industry Application on Service Industry Application on Education Application on Securities Application on Exhibition Hall Application in Office or family Application in the Office Building EC infrastructural facilities EC infrastructural facilities The Basis of Computer Network Network Communication Protocol Internet Network Program Technology The Emergence and Developm

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