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BRAC Business School BBA Program Spring 2014 MSC 441: Introduction to E-commerceLecture by: Md. Jabir Al MursalinRef. Text: Electronic Commerce 2010: A Managerial Perspective

Chapter 2: E-Commerce infrastructureThe Internet and World Wide WebMSC441: Introduction to Electronic Commerce Lecture by: Md. Jabir Al MursalinBRAC Business School

E-CommerceInternet:Interconnected network of thousands of networks and millions of computersLinks businesses, educational institutions, government agencies, and individuals

World Wide Web: One of the Internets most popular servicesProvides access to billions, possibly trillions, of Web pages

Key technology concepts of InternetMSC441: Introduction to Electronic Commerce Lecture by: Md. Jabir Al MursalinBRAC Business School

E-CommerceThree important concepts for internet : Internet protocol suit Packet switching Client/server computing

The internet protocol suit: TCP/IPMSC441: Introduction to Electronic Commerce Lecture by: Md. Jabir Al MursalinBRAC Business School

E-Commerce

Ref: http://en.wikipedia.org/wiki/TCP/IPPacket Switching ConceptMSC441: Introduction to Electronic Commerce Lecture by: Md. Jabir Al MursalinBRAC Business School

E-CommerceSlices digital messages into packets. Sends packets along different communication paths as they become available. Reassembles packets once they arrive at destination.

The client-server architectureMSC441: Introduction to Electronic Commerce Lecture by: Md. Jabir Al MursalinBRAC Business School

E-CommercePowerful personal computers (clients) connected in network with one or more servers that perform common functions for the clients.

Routing internet messagesMSC441: Introduction to Electronic Commerce Lecture by: Md. Jabir Al MursalinBRAC Business School

E-Commerce

Domain, DNS and URL: MSC441: Introduction to Electronic Commerce Lecture by: Md. Jabir Al MursalinBRAC Business School

E-CommerceIP Address: A numerical label assigned to each device on the internetDomain name:IP address expressed in natural languageDomain name system (DNS):Naming system for computer, services or any resources connected to internetUniform resource locator (URL): Address used by Web browser to identify location of content on the WebE.g. http://www.azimuth-interactive.com/flash_test

Application protocols and utilitiesMSC441: Introduction to Electronic Commerce Lecture by: Md. Jabir Al MursalinBRAC Business School

E-CommerceApplication protocolsHTTPE-mail: SMTP, POP3, IMAPFTPUtility programs SSLPingTracertPathping

The internet network architecture MSC441: Introduction to Electronic Commerce Lecture by: Md. Jabir Al MursalinBRAC Business School

E-CommerceBackbone: High-bandwidth fiber-optic cable networks Private networks owned by a variety of NSPs Bandwidth: 155 Mbps 2.5 Gbps Built-in redundancyIXPs: Hubs where backbones intersect with regional and local networks, and backbone owners connect with one anotherCANs: LANs operating within a single organization that leases Internet access directly from regional or national carrierThe language of Internet: MSC441: Introduction to Electronic Commerce Lecture by: Md. Jabir Al MursalinBRAC Business School

E-CommerceHyper Text Markup Language (HTML): Text formatted with embedded links. Links connect documents to one another, and to other objects such as sound, video, or animation files.Extensible Markup Language: A meta-language that allows one to design a markup language, used to allow for the easy interchange of documents on the World Wide Web.Web server and Web clients: MSC441: Introduction to Electronic Commerce Lecture by: Md. Jabir Al MursalinBRAC Business School

E-CommerceWeb server Helps to deliver web content that can be accessed through Internet. Specialized servers: Database servers, ad servers, etc.Web server software: Enables a computer to deliver Web pages to clients on a network that request this service by sending an HTTP requestApache and Microsoft IISBasic capabilities: Security services, FTP, search engine, data captureWeb client: Any computing device attached to the Internet that is capable of making HTTP requests and displaying HTML pagesWeb Browsers are used by web clients to display Web pages. Web server and Web clients: MSC441: Introduction to Electronic Commerce Lecture by: Md. Jabir Al MursalinBRAC Business School

E-Commerce

ISP

InternetFirewallWeb Server: E-mail ServerContent ServerFTP ServerApplication ServerHTTP Request, SMTP Request, FTP RequestHTML ResponseOther internet protocols and utilitiesMSC441: Introduction to Electronic Commerce Lecture by: Md. Jabir Al MursalinBRAC Business School

E-CommerceInternet and Web features on which the foundations of e-commerce are built include: E-mail Instant messaging Search engines Intelligent agents (bots) Online forums and chat Streaming media Cookies

ConclusionMSC441: Introduction to Electronic Commerce Lecture by: Md. Jabir Al MursalinBRAC Business School

E-Commerce Explain key technology concepts of internet. Define Domain name, DNS and URL. Define Web server, Web client and Web browser. ?People tend to think of the web as a way to get information or perhaps as a place to carry out e-commerce. But really, the web is about accessing applications. - Marc Anderssen