Chapter Copyright © 2015 McGraw-Hill Education. All rights reserved. No reproduction or...

2 The Internet, the Web, and Electronic Commerce

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

Internet security suites.4. Compare different Internet communications, including email, text messaging, instant

messaging, social networking, blogs, microblogs, Webcasts, podcasts, and wikis.5. Describe search tools, including search engines and specialized search engines.6. Evaluate the accuracy of information on the web.7. Identify electronic commerce, including B2C, C2C, B2B, and security issues.8. Describe cloud computing, including the three-way interaction of clients, Internet,

and service providers.

Introduction

• 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

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)

• 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

Common Internet Uses

• Communicating • e-mail, photos, videos• Discussions

• Shopping• Searching• Virtual libraries

• Education or e-learning • Entertainment

Making IT Work for You ~ Online Entertainment

• Use the Internet to locate and play movies and television shows• Netflix, Hulu, Amazon Prime

Access

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

Browsers

• Programs that provide access to Web resources• Allow you to explore the Web• Popular Web browsers include:• Google Chrome• Mozilla Firefox• Microsoft Internet Explorer• Apple Safari

• Address or location of theresource must be specified• URL (Uniform Resource Locator)

•Uniform Resource Locator• Protocol• Domain Name• Top-level domain

•Top-level domain (TLD) or Web Suffix• Identifies the type of

organization

HTML and Hyperlinks

• Browsers interpret HTML commands • Hypertext Markup Language

• Display Web page document• Hyperlinks or links•Text•Graphic images•Audio and Video Clips

Interactive Web Sites

• Technologies used to provide highly interactive and animated Web sites•Cascading Style Sheets (CSS)• JavaScript•AJAX•Applets•Mobile Browsers

Web Utilities

• Specialized utility programs that make using the Internet and Web safer and easier• Plug-Ins• Filters• File Transfer Utilities• Internet Security

Suites

Return

Plug-Ins

• 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• QuickTime•Windows Media Player

Return

Filters

• Programs that block access to selected sites and can set time limits•Monitor total time spent on the Internet

and at individual Web sites• CyberPatrol• Pearl Echo• Norton Online Family• Net Nanny• Symantec Web Gateway

Return

File Transfer Utilities

• 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

Internet Security Suites

• Designed to maintain your security and privacy while on the Web

Communication

• Communication is the most popular Internet activity• E-mail• Transmission of electronic messages over the

Internet• Address• Subject• Attachments• Message• Signature

Communication (continued)

•Client-based e-mail system•E-mail client

•Web-based e-mail system•Webmail

• Junk and/or unwanted e-mail•Computer viruses or destructive programs

are often attached to unsolicited email•Spam blockers / spam filters use a variety of

approaches to identify and control spam

Messaging

•Text messaging / texting• SMS (short message service)

• Instant messaging• Extension of e-mail that provides direct, live

communication between two or more people• Most programs include video conferencing features, file sharing

and remote assistance• Facebook Chat• Google Talk

Social Networking

• Connecting people and organizations that share a common interest or activity• Three most popular:• Facebook• Google+• LinkedIn•Business-oriented

Blogs, Microblogs

• Web logs or blogs – personal news pages that are date/time-stamped and arranged with the most recent items shown first

• Microblogs – short status updates that answer the question:• What are you doing now?

Webcasts, Podcasts, Wikis

•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

Search Tools

• Search Services• Specialized Search Engines • Spiders

• Search Engines• Content Evaluation• Authority• Accuracy• Objectivity• Currency

Electronic Commerce

•Also known as e-commerce•Buying and selling of goods over the Internet• Business-to-consumer (B2C)• Consumer-to consumer (C2C)• Business-to-business (B2B)

Return

Business to Consumer (B2C)

•Fastest growing type of e-commerce•Three most widely used B2C applications: • Online banking• Financial trading • Shopping

Return

Consumer to Consumer C2C

•Consumer-to-consumer e-commerce (C2C)•Web auctions•Similar to traditional auctions • Person-to-person auction sites

Return

Business to Business B2B

• Involves the sale of a product or service from one business to another • Primarily a manufacturer to supplier relationship

Security

•Payment methods must be fast, reliable, and secure•Two options• Credit card• Digital cash

Cloud Computing

• 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

Careers In IT - Webmasters

• Develop and maintain websites and resources• Backup of company website• Update and develop new resources•Work with the marketing

department to increase sitetraffic and monitor the flowof customer interactions

A Look to the Future

•Car’s dashboard as a powerful, Internet-connected computing device• Safety and diagnostic features are already there• Potential distractions?

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 browsers and discuss URLs, HTML, JavaScript, AJAX, Applets, and mobile browsers.

• What are Web utilities? Discuss plug-ins, filters, file transfer utilities, and Internet security suites

• Discuss Internet communications, including client-based and web-based email, 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.

• Describe electronic commerce, including business-to-consumer, consumer-to-consumer, and business-to-business e-commerce, and security.

• What is cloud computing? Describe the three basic components of cloud computing.

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