Unit 6: Internet and Electronic Commerce

Information Technology Management

Internet

• Worldwide collection of millions of computers and networks of all sizes

• Derived from the term ‘inter-networking’ which meant connecting networks

• Advanced Research Projects Agency Network (ARPANET)

  • Project started in 1969 by the U.S. Department of Defense was the beginning of the Internet

World Wide Web

• World Wide Web (WWW or “the Web”) changed the Internet in 1989 by:

  • Introducing graphical user interface (GUI) to the text-based Internet

• Hypermedia

  • Documents include embedded references to audio, text, images, video, and other documents

• Hypertext

  • Embedded references in hypermedia documents

• Consists of links users can click to follow a thread

Domain Name System (DNS)

• Protocol which converts domain names into IP addresses when information is transferred from one network to another

• Domain names: Unique identifiers of computer or network addresses on the Internet

• Internet Protocol (IP) address

  • Assigned by the Internet Corporation for Assigned Names and Numbers (ICANN)

• Uniform resource locators (URLs)

  • Address of a document or site on the Internet

  • Otherwise known as universal resource locators (URLs), identify a Web page

• Top-level Domain (TLD)

  • Denotes the types of organization or country the address specifies

    • Generic (gTLDs)

    • Country-code (ccTLDs)

Generic Top-Level Domains

Process of Domain Name Resolution

Intranet

• Private internal network using Internet technologies

  • Business value of intranets - an enterprise information portal supporting communications and collaboration

  • Web publishing - developing and publishing hyperlinked multimedia documents

  • Business operations and management - develop/deploy critical applications supporting operations and managerial decision making

  • Intranet portal management - managed by IS/IT professionals

Simple Intranet Structure

Extranet

• A private network using Internet technologies opened to select external entities for purposes of communications

• Purpose - interconnect the business with its suppliers/customers/business partners

Simple Entranet Structure

Extranet

Electric Commerce

• The entire online process of developing, marketing, selling, delivering, servicing, and paying for products and services transacted on networked global marketplaces; more than just buying and selling online

• Involves most information and Internet technologies

• Enhances a value chain - offers new ways to reduce costs or improve operations

Scope of Electronic Commerce

Trends in Electronic Commerce

Issues of Electronic Commerce

• Bandwidth capacity

• Security

• Privacy

Mobile Commerce

• Using mobile devices to conduct business transactions

• Technologies supported

  • Wireless wide-area networks and 3G/4G/5G networks

  • Short-range wireless communication technologies, e.g., near-field communication (NFC)

Evolution of Wireless Technology

Here are some true or false questions based on the notes: 1. **True or False:** The Internet is a worldwide collection of computers and networks of all sizes. 2. **True or False:** The term "inter-networking" refers to the process of connecting computers to each other. 3. **True or False:** The Advanced Research Projects Agency Network (ARPANET) was initiated by the U.S. Department of Defense in 1969 as the beginning of the Internet. 4. **True or False:** The World Wide Web was introduced in 1999. 5. **True or False:** Hypermedia documents only include text and images, without references to audio or video. 6. **True or False:** Hypertext consists of links that allow users to navigate through hypermedia documents. 7. **True or False:** The Domain Name System (DNS) converts IP addresses into domain names. 8. **True or False:** An Internet Protocol (IP) address is assigned by the Internet Corporation for Assigned Names and Numbers (ICANN). 9. **True or False:** Uniform Resource Locators (URLs) are used to identify web pages on the Internet. 10. **True or False:** A top-level domain (TLD) indicates the type of organization or country associated with a website. 11. **True or False:** An intranet is an external network that connects businesses with their suppliers. 12. **True or False:** Extranets are used to open private networks to external entities for communication purposes. 13. **True or False:** Electronic commerce involves only buying and selling products online. 14. **True or False:** Mobile Commerce refers to conducting business transactions using mobile devices.