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Ch 5: Computer Science & The Internet

About This Chapter

Enjoy a fun and engaging examination of computer science and the Internet with help from this online chapter. Entertaining lessons and multiple-choice quizzes can strengthen your knowledge of this subject and help you study for an upcoming test.

Computer Science & The Internet - Chapter Summary

This comprehensive overview is fantastic for helping you grasp the basics of computer science and the Internet. Our instructors offer an in-depth analysis of the World Wide Web, internet security, communication protocol and much more. Review fun lessons to gain greater insight into these topics and ensure you're able to:

  • Describe the origins and timeline of the history of the Internet
  • Explain how the World Wide Web works
  • Exhibit knowledge of IP addresses, URLs, ISPs and other aspects of the Internet
  • Differentiate between the Internet and Extranet
  • Share facts about Internet connectivity and communication standards
  • Define communication protocol
  • Discuss privacy, protection and essentials of Internet security

This chapter enables you to study computer science and the Internet at home or on-the-go. All lessons are available 24/7 and can be viewed using any computer, smartphone or tablet. Reviewing the lessons will help you gain full comprehension of this subject, while taking accompanying quizzes can check your knowledge of their contents. Find out how ready you are to address this subject on your test by taking our practice chapter exam.

7 Lessons in Chapter 5: Computer Science & The Internet
What is the History of the Internet? - Origins & Timeline

1. What is the History of the Internet? - Origins & Timeline

While the Internet has become an integral part of our daily lives, it is a relatively recent technology. Learn about the origins of the Internet, e-mail and the World Wide Web.

World Wide Web: How the Web Works

2. World Wide Web: How the Web Works

In this lesson, an overview of the World Wide Web is discussed, including its development and operation. The various technologies that enable the Web to work are also described. Topics include Web browsers, hypertext markup language, hypertext transfer protocol, hyperlink and FTP.

The Internet: IP Addresses, URLs, ISPs, DNS & ARPANET

3. The Internet: IP Addresses, URLs, ISPs, DNS & ARPANET

We'll cover the basics of the Internet, including its history and functioning. Key topics include IP addresses, TCP/IP communication protocol, DNS, URLs, and the transfer of information as packets through the Internet.

Intranet and Extranet: Comparing Information and Data Dissemination

4. Intranet and Extranet: Comparing Information and Data Dissemination

Organizations rely upon intranets and extranets to share information, communicate with employees, suppliers and customers, and enable collaboration on projects. This lesson explains how intranets and extranets work. It introduces the topics of virtual private networks, tunneling and firewalls.

Internet Connectivity and Communication Standards

5. Internet Connectivity and Communication Standards

Standards and protocols provide the essential rules that enable hardware and software to work together and allow devices to communicate over a computer network. This lesson will explore formal and de facto standards, protocols such as TCP/IP, and industry officials including IEEE, ISO, ACM, IETF, ITU-T, and CODASYL.

What is Communication Protocol? - TCP/IP & Explanation

6. What is Communication Protocol? - TCP/IP & Explanation

In this lesson, you will learn about 'The Internet's Protocol Suite', composed of the Transmission Control Protocol (TCP), and the Internet Protocol (IP); abbreviated as TCP/IP. Lesson highlights include: TCP and IP defined, how TCP/IP became the foundation for today's Internet communications and how the five layers of the TCP/IP model compares with the seven layers of the Open System Interconnection (OSI) model.

What is Internet Security? - Privacy, Protection & Essentials

7. What is Internet Security? - Privacy, Protection & Essentials

The Internet provides a wealth of information and services, but also presents certain risks. Learn about the various security threats and way to make your online activities more secure and enjoyable.

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