Chapter 2 The Internet the Web and Electronic

Chapter 2 The Internet, the Web, and Electronic Commerce Copyright © 2015 Mc. Graw-Hill Education. All rights reserved. No reproduction or distribution without the prior written consent of Mc. Graw-Hill Education.

Learning Objectives 1. Explain the origins of the Internet and the web. 2. Explain how to access the web using providers and browsers. 3. Compare different web utilities including plug-ins, filters, file transfer utilities, and Computing Essentials 2015 4. 5. 6. 7. 8. Internet security suites. Compare different Internet communications, including email, text messaging, instant messaging, social networking, blogs, microblogs, Webcasts, podcasts, and wikis. Describe search tools, including search engines and specialized search engines. Evaluate the accuracy of information on the web. Identify electronic commerce, including B 2 C, C 2 C, B 2 B, and security issues. Describe cloud computing, including the three-way interaction of clients, Internet, and service providers. 2 -2

Introduction Computing Essentials 2015 • The Internet is an interconnected mesh of computers and data lines that connects millions of people and organizations • It is the foundation of the digital revolution • The Web provides an easy-to-use interface to Internet resources that has become an everyday tool • To be effective and efficient, end users need to be aware of the resources available on the Internet and the Web and how to access them 2 -3

The Internet and the Web • The Internet is a large global network, connecting smaller networks all over the globe • The Internet was launched in 1969 • The United States funded project to develop a national computer network • ARPANET (Advanced Research Project Agency Network) Computing Essentials 2015 • The World Wide Web or WWW was introduced in 1991 at CERN (Center for European Nuclear Research) • The Internet and the Web are NOT the same • The Internet is the physical network • The Web is a multimedia interface to the resources available on the Internet 2 -4

Common Internet Uses Computing Essentials 2015 • Communicating • e-mail, photos, videos • Discussions • Shopping • Searching • Virtual libraries • Education or e-learning • Entertainment 2 -5

Making IT Work for You ~ Online Entertainment Computing Essentials 2015 • Use the Internet to locate and play movies and television shows • Netflix, Hulu, Amazon Prime 2 -6

Access • Common way to access the Internet is through an Computing Essentials 2015 Internet Service Provider (ISP) • Provide a connection for individuals to access the Internet • Use telephone lines, cable, and/or wireless connections 2 -7

Browsers • Programs that provide access to Web Computing Essentials 2015 resources • Allow you to explore the Web • Popular Web browsers include: • • Google Chrome Mozilla Firefox Microsoft Internet Explorer Apple Safari • Address or location of the resource must be specified • URL (Uniform Resource Locator) 2 -8

URLs • Top-level domain (TLD) or Web Suffix • Identifies the type of organization Computing Essentials 2015 • Uniform Resource Locator • Protocol • Domain Name • Top-level domain 2 -9

HTML and Hyperlinks Computing Essentials 2015 • Browsers interpret HTML commands • Hypertext Markup Language • Display Web page document • Hyperlinks or links • Text • Graphic images • Audio and Video Clips 2 -10

Interactive Web Sites Computing Essentials 2015 • Technologies used to provide highly interactive and animated Web sites • Cascading Style Sheets (CSS) • Java. Script • AJAX • Applets • Mobile Browsers 2 -11

Web Utilities Computing Essentials 2015 • Specialized utility programs that make using the Internet and Web safer and easier • Plug-Ins • Filters • File Transfer Utilities • Internet Security Suites Return 2 -12

Plug-Ins Computing Essentials 2015 • Programs that automatically start and operate as part of you browser • Provide an enhanced browsing experience by enabling special file formats and multimedia elements • Acrobat Reader • Flash • Quick. Time • Windows Media Player Return 2 -13

Filters Computing Essentials 2015 • Programs that block access to selected sites and can set time limits • Monitor total time spent on the Internet and at individual Web sites • Cyber. Patrol • Pearl Echo • Norton Online Family • Net Nanny • Symantec Web Gateway Return 2 -14

File Transfer Utilities Computing Essentials 2015 • Programs that help you upload and download files to and from the Internet • Downloading • Uploading • Three popular types of programs • File transfer protocol (FTP) and secure file transfer protocol (SFTP) • Web-based file transfer services • Bit-Torrent Return 2 -15

Internet Security Suites Computing Essentials 2015 • Designed to maintain your security and privacy while on the Web 2 -16

Communication Computing Essentials 2015 • Communication is the most popular Internet activity • E-mail • Transmission of electronic messages over the • • • Internet Address Subject Attachments Message Signature 2 -17

Communication (continued) • Client-based e-mail system Computing Essentials 2015 • E-mail client • Web-based e-mail system • Webmail 2 -18

Spam • Junk and/or unwanted e-mail • Computer viruses or destructive programs Computing Essentials 2015 are often attached to unsolicited email • Spam blockers / spam filters use a variety of approaches to identify and control spam 2 -19

Messaging • Text messaging / texting • SMS (short message service) • Instant messaging • Extension of e-mail that provides direct, live communication between two or more people Computing Essentials 2015 • Most programs include video conferencing features, file sharing and remote assistance • Facebook Chat • Google Talk 2 -20

Social Networking Computing Essentials 2015 • Connecting people and organizations that share a common interest or activity • Three most popular: • Facebook • Google+ • Linked. In • Business-oriented 2 -21

Blogs, Microblogs • Web logs or blogs – updates that answer the question: • What are you doing now? Computing Essentials 2015 personal news pages that are date/time-stamped and arranged with the most recent items shown first • Microblogs – short status 2 -22

Webcasts, Podcasts, Wikis Computing Essentials 2015 • Webcast – streaming technology for live broadcast of audio and video • Podcast-audio and video files that can be downloaded to your computer or media player • Wiki – a specially designed Web site that allows visitors to edit the contents; supports collaborative writing 2 -23

Search Tools Computing Essentials 2015 • Search Services • Specialized Search Engines • Spiders • Search Engines • Content Evaluation • Authority • Accuracy • Objectivity • Currency 2 -24

Electronic Commerce • Also known as e-commerce • Buying and selling of goods over the Internet Computing Essentials 2015 • Business-to-consumer (B 2 C) • Consumer-to consumer (C 2 C) • Business-to-business (B 2 B) Return 2 -25

Business to Consumer (B 2 C) • Fastest growing type of e-commerce • Three most widely used B 2 C applications: Computing Essentials 2015 • Online banking • Financial trading • Shopping Return 2 -26

Consumer to Consumer C 2 C • Consumer-to-consumer e-commerce (C 2 C) • Web auctions • Similar to traditional auctions Computing Essentials 2015 • Person-to-person auction sites Return 2 -27

Business to Business B 2 B • Involves the sale of a product or service from one business to Computing Essentials 2015 another • Primarily a manufacturer to supplier relationship 2 -28

Security • Payment methods must be fast, Computing Essentials 2015 reliable, and secure • Two options • Credit card • Digital cash 2 -29

Cloud Computing Essentials 2015 • Shifts computing activities from users’ desktops to computers on the Internet • Frees end-users from owning, maintaining, and storing software programs and data • Three basic components: • Clients (end-users) • Service providers • The Internet 2 -30

Careers In IT - Webmasters Computing Essentials 2015 • Develop and maintain websites and resources • Backup of company website • Update and develop new resources • Work with the marketing department to increase site traffic and monitor the flow of customer interactions 2 -31

A Look to the Future • Car’s dashboard as a powerful, Internet-connected Computing Essentials 2015 computing device • Safety and diagnostic features are already there • Potential distractions? 2 -32

Open-Ended Questions (Page 1 of 3) • Discuss the Internet, including their origins, the three generations of the web, and the most common uses. • Describe how to access the Internet. What are the providers? Define Computing Essentials 2015 browsers and discuss URLs, HTML, Java. Script, AJAX, Applets, and mobile browsers. • What are Web utilities? Discuss plug-ins, filters, file transfer utilities, and Internet security suites 2 -33

Open-Ended Questions (Page 2 of 3) • Discuss Internet communications, including client-based and web-based email, Computing Essentials 2015 instant and text messaging, social networking, blogs, microblogs, webcasts, podcasts, and wikis. • Define search tools including search services. Discuss search engines and specialized search engines. Describe how to evaluate the content of a web site. 2 -34

Open-Ended Questions (Page 3 of 3) • Describe electronic commerce, including business-to-consumer, consumer-to-consumer, and business-to-business ecommerce, and security. Computing Essentials 2015 • What is cloud computing? Describe three basic components of cloud computing. 2 -35