Week 1 - The Internet, Intranet and Extranet PDF

MIS, 11e The Internet, Intranets, and Extranets Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessi...

MIS, 11e The Internet, Intranets, and Extranets Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 1  Chapter Objectives By the end of this module, you should be able to: 1. Describe the makeup of the Internet and the Web 2. Discuss navigational tools, search engines, and directories 3. Describe four common Internet services and how they are used in a business environment 4. Explain business applications of the Internet 5. Describe the role of intranets in various business functions 6. Describe the role of extranets in various business functions 7. Analyze Web trends and their impact on business 7.8 Analyze the Internet of Everything and its business application Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 2  The Internet The Internet is a worldwide collection of billions of computers and networks of all sizes Started in 1969 as ARPANET ARPANET evolved into the NSFNET in 1987 Originally only permitted for research and educational institutions due to limited bandwidth Internet backbone is a foundation network linked with fiber-optic cables that support high bandwidth. Additional internet backbones were allowed to connect to NSFNET to support commercial use Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 3  The Internet Private companies can operate their own Internet backbones that connect to network access points (NAP) NAPs determine how traffic is routed over the Internet Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 4  The Web Introduced a graphical user interface (GUI) Changed how users were able to interact with the Internet Proposed by Tim Berners-Lee at the CERN Organizes information by using hypermedia Hypermedia is documents that include embedded references Hypertext is the embedded references in the hypermedia A web server is used to store the hypermedia documents and make them available to other computers (clients) Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 5  Domain Name System Domain names are unique identifiers of network addresses on the Internet Internet Protocol (IP) address are assigned to each network by ICANN Domain Name System (DNS) protocol translates language based names to IP addresses DNS Servers maintain lists of computer and website addresses and translates names to IP addresses Language based domain names are used in uniform resources locators Uniform Resource Locators (URL) are used to identify web page Every URL has a top-level domain (TLD) suffix (i.e..edu,.com.,.org) Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 6  Generic TLDs Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 7  Internet Connections DSL methods for connecting to a network like the Internet ○ Symmetric DSL ○ Asymmetric DSL ○ Very High-Speed DSL Symmetric DSL (SDSL) Has the same data transmission rate for the upstream and downstream Rate up to 1.5 Mbps in both directions Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 8  Internet Connections Asymmetric DSL (ADSL) Lower transmission rate upstream than downstream Rate upstream is 3.5 Mbps Rate downstream is 24 Mbps Very High-Speed DSL (VDSL) Rate downstream and upstream up to 100 Mbps over short distances Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 9  Navigational Tools, Search Engines, and Directories Three tools to navigate across the Internet ○ Navigational tools ○ Search engines ○ Directories Navigational Tools Variety of graphical Web browsers available (i.e. Microsoft Edge, Google Chrome, etc.) Provide menu options that users are familiar with Include options to view history, bookmark pages, navigation buttons, and more. Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 10  Search Engines and Directories Search Engines Search engines are information systems that allow users to retrieve data from the Web based on search terms Examples include Google, Bing, DuckDuckGo, etc. All search engine have a three step process: ○ Crawl the web using spiders ○ Index data provided by the spiders ○ Use the index it created to provide results based on the search term(s) a user entered Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 11  Search Engines and Directories Search Engines Additional searches from Facebook and Google are gaining popularity ○ Graph Search (Facebook) ○ Knowledge Graph (Google) ○ Voice Search (Google) Directories Organize information into categories Two kinds of directories ○ Automated (crawler-based) ○ Human-powered directory (not as relevant as they used to be) Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 12  Internet Services Many services are made possible by TCP protocol in the Application Layer of the OSI Popular services include email, newsgroups and discussion groups, instant message, and Internet telephony E-Mail One of the most widely used services on the Internet Two main types of email ○ Web-based email ○ Client-based email Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 13  Internet Services (cont) Newsgroups and Discussion Groups Provide a way for people with similar interest to connect Discussion groups provide a way to exchange opinions and ideas on a specific topic Newsgroups are more general and can cover any topic Discussion threads provide a chain of written ideas or opinions exchanged by participants online Instant Messaging Instant Messaging (IM) is a service for communicating with others in a private “chat room” on the Internet Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 14  Internet Services (cont) Internet Telephony Uses the Internet (not the telephone network) to have spoken conversations Uses Voice over Internet Protocol (VoIP) which is a protocol that requires a high-speed Internet connection Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 15  Web Applications Web applications have minimal costs and helps organizations reduce expenses Industries that have benefited from web applications include ○ Tourism and travel ○ Publishing ○ Higher education ○ Real estate ○ Employment ○ Financial institutions ○ Software distributions ○ Healthcare ○ Politics Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 16  Intranet An intranet is a network within an organization that uses Internet protocols and technologies Used for collecting, storing, and disseminating information for business activities For internal organization use or authorized external users Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 17 Simple Intranet Architecture Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 18  Internet vs Intranet Internet Intranet Public network Private network Anyone can access Limited access to approved Uses TCP/IP protocol users Uses browsers to access Uses TCP/IP protocol information Uses browsers to access No control on what browser is information used Organization can control what browser is used Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 19  Applications of an Intranet Intranets can be used to improve efficiency within an organization Examples of intranet uses include ○ Human resource management ○ Sales and marketing ○ Production and operations ○ Accounting and finance Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 20  Internet vs Intranets Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 21  Extranets An extranet uses the Internet and Web technologies to connect intranets of business partners and enable communication between organizations and consumers Provides same benefits of intranets with additional advantages that include ○ Coordination ○ Feedback ○ Customer satisfaction ○ Cost reduction ○ Expedited communication Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 22 Simple Extranet Architecture Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 23 Internet, Intranets, and Extranets Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 24  Web Trends Three generations of Web applications ○ Web 1.0 (static content) ○ Web 2.0 (dynamic content) ○ Web 3.0 (Semantic Web) Web 3.0 Focuses on “intelligent” Web applications using various types of AI Tailors online searching and requests to users’ specific search patterns, preferences and needs Blog Journal or newsletter intended for general public Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 25  Web 2.0 vs Web 3.0 Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 26  Web Trends Wikis Type of website that allows users to add, delete, and modify content Social Networking Sites Social networking consists of a broad class of Web sites and services that allows users to connect with others Business Application of Social Networks Social networks provides small businesses equal footing with large organizations Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 27  Web Trends RSS Feeds Really Simple Syndication (RSS) feeds are a fast, easy way to distribute Web content in XML format Podcasting A podcast is an electronic audio file that is posted on the Web for users to download or listen over the Web Has a specific URL Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 28  Internet of Everything (IoE) The Internet of Everything (IoE) is Web-based development of people, processes, data and things interconnected via the Internet Uses Internet means such as RFID devices, barcode, wireless systems, and QR codes IoE refers to the connections that can be made, the Internet of Things (IoT) refers to physical objects that are connected to the Internet and to other physical objects The Internet of Me (IoM) is the personalized Internet that gathers and processes information for a user Industrial IoT (IIoT) is used to enhance manufacturing and industrial processes Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 29  Knowledge Check Activity 1-1 An organization needs to configure a network that will be limited to within the organization and not accessible by external parties. What type of network will they need? a. Intranet b. Internet c. Subnet d. Extranet Bidgoli, MIS, 11th Edition. © 2024 Cengage. All Rights Reserved. May not be scanned, copied or duplicated, or posted to a publicly accessible website, in whole or in part. 30