1. THE INTERNET BEGAN AS GOVERNMENT CONNECTION OF UNIVERSITIESBEGAN AS GOVERNMENT CONNECTION OF UNIVERSITIES INTERNET SERVICE PROVIDER (ISP): organization connected to Internet, leases temporary connections to subscribersINTERNET SERVICE PROVIDER (ISP): organization connected to Internet, leases temporary connections to subscribers NO ONE OWNS IT, NO FORMAL ORGANIZATIONNO ONE OWNS IT, NO FORMAL ORGANIZATION

2. INTERNET CAPABILITIES E -MAIL: person -to-person messaging; document sharingE -MAIL: person -to-person messaging; document sharing USERNET NEWSGROUPS: electronic bulletin boards for discussion groupsUSERNET NEWSGROUPS: electronic bulletin boards for discussion groups LISTSERVs: e-mail list servers for discussion groupsLISTSERVs: e-mail list servers for discussion groups CHATTING: interactive conversationsCHATTING: interactive conversations TELNET: log on one computer, work on anotherTELNET: log on one computer, work on another FTP: transfer files from computer to computerFTP: transfer files from computer to computer GOPHERS: use menus to locate text materialGOPHERS: use menus to locate text material

3. INTERNET CAPABILITIES ARCHIE: search database for files to downloadARCHIE: search database for files to download VERONICA: speeds searching gopher sites by using keywordsVERONICA: speeds searching gopher sites by using keywords WIDE AREA INFORMATION SERVICE (WAIS): locates files using key wordsWIDE AREA INFORMATION SERVICE (WAIS): locates files using key words WORLD WIDE WEB: retrieve, format, display information (text, audio, graphics, video) using hypertext linksWORLD WIDE WEB: retrieve, format, display information (text, audio, graphics, video) using hypertext links

4. INTERNET ADDRESS ggalileo@univpisa.edu.it INDIVIDUAL OR ORGANIZATION NAME HOST COMPUTER LOCATION FUNCTION DOMAIN NAME

5. INTERNET TERMS HOME PAGE: WWW screen display welcomes user to organization’s pageHOME PAGE: WWW screen display welcomes user to organization’s page WEBMASTER: person in charge of Web siteWEBMASTER: person in charge of Web site UNIFORM RESOURCE LOCATOR (URL): address of specific Internet resourceUNIFORM RESOURCE LOCATOR (URL): address of specific Internet resource

6. INTERNET TERMS HYPERTEXT TRANSPORT PROTOCOL (http): communications standard (sets of rules) used to transfer Web pages.HTTP defines how messages are formatted and transmitted and what actions Web servers and browsers should take in response to various commands.HYPERTEXT TRANSPORT PROTOCOL (http): communications standard (sets of rules) used to transfer Web pages.HTTP defines how messages are formatted and transmitted and what actions Web servers and browsers should take in response to various commands. HYPERTEXT MARKUP LANGUAGE (HTML): popular programming language for creating Web sitesHYPERTEXT MARKUP LANGUAGE (HTML): popular programming language for creating Web sites

7. SURFING THE NET SEARCH ENGINE: tool for locating specific sites or information on WWWSEARCH ENGINE: tool for locating specific sites or information on WWW “PUSH” TECHNOLOGY: server streams Web page content to a Web browser“PUSH” TECHNOLOGY: server streams Web page content to a Web browser HYPERLINK: spot on screen, when clicked shifts to a new page or siteHYPERLINK: spot on screen, when clicked shifts to a new page or site

8. “Push” Technology Instead of surfing the Web, users can have the information they are interested in delivered automatically to their desktops through “push’ technology.Instead of surfing the Web, users can have the information they are interested in delivered automatically to their desktops through “push’ technology. A computer broadcasts information of interest directly to the user, rather than having the user “pull’ content from Web sites.A computer broadcasts information of interest directly to the user, rather than having the user “pull’ content from Web sites. “Push” comes fro server push, a term used to describe the streaming of Web page contents from a Web server to a Web browser“Push” comes fro server push, a term used to describe the streaming of Web page contents from a Web server to a Web browser Special client software allows the user to specify the categories of information he wants to receive and how often this information should be updated.Special client software allows the user to specify the categories of information he wants to receive and how often this information should be updated.

9. “Push” Technology Push program will notify the user by sending e- mail, playing a sound, displaying an icon on the desktop, sending full article or Web pages, or displaying headlines on screen saver.Push program will notify the user by sending e- mail, playing a sound, displaying an icon on the desktop, sending full article or Web pages, or displaying headlines on screen saver. Examples:Examples: Fruit of the Loom is using Pointcast push technology to alert managers to updated inventory information stored on its IBM AS/400 intranet Web server.Fruit of the Loom is using Pointcast push technology to alert managers to updated inventory information stored on its IBM AS/400 intranet Web server. Lufthansa uses the BackWeb push delivery service to alert customers to fare discount.Lufthansa uses the BackWeb push delivery service to alert customers to fare discount.

10. INTRANET INTERNAL NETWORK: A simple intranet can be created by linking a client computer with Web browser to a computer with Web server software via a TCP/IP networkINTERNAL NETWORK: A simple intranet can be created by linking a client computer with Web browser to a computer with Web server software via a TCP/IP network Intranet software technology is same as that of the WWW TECHNOLOGY.Intranet software technology is same as that of the WWW TECHNOLOGY. FIREWALL: Security System (consists of hardware and software placed between an organization’s internal network and an external network, including the Internet) to Prevent Invasion of Private NetworksFIREWALL: Security System (consists of hardware and software placed between an organization’s internal network and an external network, including the Internet) to Prevent Invasion of Private Networks Overcomes computer platform differences.Overcomes computer platform differences. Often installed on existing network infrastructure.Often installed on existing network infrastructure.

11. EXTRANET ALLOWS Authorized USERS OUTSIDE ORGANIZATION TO USE ITS INTRANET: CUSTOMERSCUSTOMERS BUSINESS PARTNERSBUSINESS PARTNERS VENDORSVENDORS

12. EXTRANET INTERNET CUSTOMERSUPPLIER FIREWALL DATABASES SERVER CLIENTS BUSINESS PARTNER

13. INTERNET BENEFITS GLOBAL CONNECTIVITYGLOBAL CONNECTIVITY REDUCED COMMUNICATIONS COSTREDUCED COMMUNICATIONS COST LOWER TRANSACTION COSTSLOWER TRANSACTION COSTS REDUCED AGENCY COSTSREDUCED AGENCY COSTS INTERACTIVITY, FLEXIBILITY, CUSTOMIZATIONINTERACTIVITY, FLEXIBILITY, CUSTOMIZATION ACCELERATED KNOWLEDGEACCELERATED KNOWLEDGE

14. INTERNET & ELECTRONIC COMMERCE EASY TO LINK WITH OTHER BUSINESSES, CUSTOMERSEASY TO LINK WITH OTHER BUSINESSES, CUSTOMERS CAN UPDATE PRODUCT INFORMATION, ORDERING, CUSTOMER SUPPORTCAN UPDATE PRODUCT INFORMATION, ORDERING, CUSTOMER SUPPORT ON-LINE STOREFRONTSON-LINE STOREFRONTS ENHANCED BUSINESS FORMSENHANCED BUSINESS FORMS

15. INTERNET & ELECTRONIC COMMERCE CUSTOMER-CENTERED RETAILINGCUSTOMER-CENTERED RETAILING –DISINTERMEDIATION: removal of intermediate layers streamlines process –REDUCED COST TO BUYER, SELLER HIT: each request for a file recorded in log fileHIT: each request for a file recorded in log file

16. Components of an Internet server SMTPFTP DNS Client Access WAIS/ RDBFE WWW Server Authorizing Tools Back/End Database Network TCP/IP Stack Network Operating system Server Box Internet InterfaceFirewall/Router Internet Service Provider

17. Components of an Internet server SMTP: The Simple Mail Transfer Protocol utility translates between local and Internet mail formats, allowing clients to send/receive Internet e-mail. FTP: The File Transfer Protocol utility enables file transfers to and from the server. DNS: The Domain Name Serving Utility maps numerical Internet machine addresses (161.362.456.567) to alphabetic names (systems.compaq.com). Client Access : The Client Access software allows local clients to use the Internet (Web, FTP, etc.) over the existing network. WAIS/RDBFE: The Wide Area Information Service and Relational Database Front End Software allows Web site guests to access document database without requiring HTML encoding beforehand. WAIS is the most thorough way to locate a specific file, however, you have to know the name of the databases you want to search. WWW Server: The WWW Server Software serves Web pages to guests and helps to administrate the Web site. Authorizing Tools: Authorizing Tools create the pages that appear on the Web site.

18. Components of an Internet server Back/End Database : The Back/End Database is an Oracle, Sybase, or Back Office database that contains content served to the Web via the RDBFE and WWW Server Network TCP/IP: The TCP/IP stack allows the NOS to communicate via the Internet protocol in addition to its native protocol. Network Operating System: The Network Operating System is UNIX, Netware, or NT. Server Box : The server Box houses the CPU, disks, and Ethernet I/O hardware. Internet Interface: The Internet Interface is a WAN card that connects the server to the leased line provided by the Internet Service Provider (ISP). These cards can be Installed in a separate firewall/router box or on the server itself. Firewall/Router: The Firewall/Router sorts and filters data passing to and from the Internet. This functionality is performed by software either installed on the server itself or on a separate box. Internet Service Provider : The Internet Service Provider provides an Ip address, works through the local telephone company to arrange for a leased line, and provides installation and administration consulting services.

19. INTERNET & ELECTRONIC COMMERCE DISINTERMEDIATIONDISINTERMEDIATION ManufacturerDistributorRetailerCustomer Cost/Shirt $48.50 ManufacturerDistributorRetailerCustomer ManufacturerDistributorRetailerCustomer $40.34 $20.45

20. BENEFITS OF INTRANETS: CONNECTIVITYCONNECTIVITY CAN BE TIED TO LEGACY SYSTEM & TRANSACTION PROCESSINGCAN BE TIED TO LEGACY SYSTEM & TRANSACTION PROCESSING INTERACTIVE APPLICATIONS WITH TEXT, AUDIO, VIDEOINTERACTIVE APPLICATIONS WITH TEXT, AUDIO, VIDEO SCALABLE TO LARGER OR SMALLER SYSTEMS AS REQUIREDSCALABLE TO LARGER OR SMALLER SYSTEMS AS REQUIRED

21. BENEFITS OF INTRANETS: EASY TO USE BROWSER INTERFACEEASY TO USE BROWSER INTERFACE LOW START-UP COSTSLOW START-UP COSTS RICH, RESPONSIVE INFORMATION ENVIRONMENTRICH, RESPONSIVE INFORMATION ENVIRONMENT REDUCED INFORMATION DISTRIBUTION COSTSREDUCED INFORMATION DISTRIBUTION COSTS

22. GROUP COLLABORATION: TEAMWARE: intranet-based applications allow teams to share ideas, documents, brainstorming, scheduling. Similar to chat room.TEAMWARE: intranet-based applications allow teams to share ideas, documents, brainstorming, scheduling. Similar to chat room. INTERNAL NEWSLETTERINTERNAL NEWSLETTER ABILITY TO WORK AT HOMEABILITY TO WORK AT HOME SHARE INTERNET DISCOVERIES WITH COLLEAGUESSHARE INTERNET DISCOVERIES WITH COLLEAGUES