Copyright © Allyn & Bacon 2008 POWER PRACTICE Chapter 7 The Internet and the World Wide Web START...

Copyright © Allyn & Bacon 2008

POWER PRACTICE

Chapter 7

The Internet and the The Internet and the World Wide WebWorld Wide Web

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Question 7.1

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What is necessary to communicate between your home computer and a network?


Q7.1 Answer

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In addition to your computer, you need a modem, a phone line, and telecommunications software. If you are connecting to your school network through the Internet, you also need an ISP to allow you access to the Net.

What is necessary to communicate between your home computer and a network?


Question 7.2

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Why is it necessary to be concerned about bandwidth?


Q7.2 Answer

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Bandwidth is the capacity of the communications channel you are using. The higher the capacity (broader the bandwidth), the faster the data can flow. When you have low bandwidth, transmissions slow down, wait time increases, and large files take extended time to transmit.

Why is it necessary to be concerned about bandwidth?


Question 7.3

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What is the Internet and who owns it?


The Internet is an international collection of interconnected, individually owned networks. No one owns the Internet since its parts are owned by many different groups. Instead a consortium made up of these different groups called the Internet Society jointly decides on the issues relating to it such as common protocols and standards.

Q7.3 Answer

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What is the Internet and who owns it?


Question 7.4

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When selecting an ISP, what should you look for?

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Q7.4 Answer

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All ISPs provide access and email for a fee. Fees differ and so do the services that an ISP offers. Important services to look for include technical support, easy-to-use communications program, friendly website, personal web space, conferences, chats and instant messaging, and newsreaders.

When selecting an ISP, what should you look for?


Question 7.5

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What is email and how does it work?

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Email is an asynchronous tool that works much like a virtual post office. With email you can send and receive electronic mail. When you receive mail, it is stored in your email box until you have time to access and read it. After reading, just like real mail, you can discard it or save it. When you send mail, it waits in the recipient’s email box for them to pick it up.

Q7.5 Answer

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What is email and how does it work?


Question 7.6

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How can an electronic discussion be useful in teaching?

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Electronic discussions are asynchronous virtual discussions in which participants read and post views. In teaching, discussions let everyone, even shy students, participate. Each student can read their peers’ comments at their own pace and then respond in a thoughtful way without the inherent pressures of the classroom.

Q7.6 Answer

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How can an electronic discussion be useful in teaching?


Question 7.7

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What advantage does a mailing list have for a busy teacher?

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Q7.7 Answer

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Mailing lists or listservs let you participate in teacher news and discussions by having comments mailed directly to your email box. If you want to reply to the discussion, your comments in turn are mailed to all the other subscribers.

What advantage does a mailing list have for a busy teacher?


Question 7.8

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What is the difference between a chat room and an instant message?

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What is the difference between a chat room and an instant message?A chat room is a virtual space in which multiple participants can join to share a discussion by typing in text. Chat rooms can be public (anyone can join) or private (you must be invited in). Instant message is like a chat in that it is like a mini-chat space opened up by one person to communicate with one other who happens to be online at the same time.

Q7.8 Answer

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Question 7.9

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How might a newsgroup be used in the classroom?

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The Usenet is a collection of thousands of public conferences dedicated to a single topic. Each individual conference is called a newsgroup. Many newsgroups are dedicated to content area and educational topics. Monitoring and participating in these newsgroups can add a unique and expanded dimension to classroom discussion.

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How might a newsgroup be used in the classroom?

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What is a web site?

Question 7.10

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Q7.10 Answer

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A web site is a collection of related web pages that are linked together and accessed via navigation buttons. Web pages are written in HTML and are displayed via a browser.

What is a web site?


What are the components of a URL?

Question 7.11

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A Uniform Resource Locator (URL) includes the prefix http:// which stands for hypertext transfer protocol, followed by the domain name of the website, which may be followed by the name of the folder in which a target document is located, and ending with the name of the target document.

Q7.11 Answer

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What are the components of a URL?


What is a plug-in and why is it necessary?

Question 7.12

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Q7.12 Answer

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A plug-in is an additional program that expands a browser’s capabilities. They typically add the ability to play back multimedia.

What is a plug-in and why is it necessary?


Question 7.13

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What is the difference between jpeg and gif graphics?


Gif files are used for color images, clip art, and line art. It can also include multiple images for movies. Jpeg is typically the format used for photographic images.

Q7.13 Answer

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What is the difference between jpeg and gif graphics?


Question 7.14

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How does a search engine find information on the Web?


Q7.14 Answer

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A search engine is a program designed to find websites by checking keywords that a user types in against a database of URLs and their descriptions. When keywords match a descriptor, the URL is displayed as a hit. URLs and keywords are gathered from people registering their websites or from spiders.

How does a search engine find information on the Web?


Question 7.15

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How does a portal differ from an ISP?

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Q7.15 Answer

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A portal, like an ISP, offers services such as email, a search engine, and chat rooms. However, an ISP also provides the temporary connection to the Internet. To use a portal, you must already be online. Portals are often dedicated to a single area of interest, such as education portals.

How does a portal differ from an ISP?

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Copyright © Allyn & Bacon 2008 POWER PRACTICE Chapter 7 The Internet and the World Wide Web START...

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