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1_21_1[<HIGHLIGHT><POS>(19,187)Internet Overview<NORMAL><POS>(57,16)Welcome to this Introduction to the Internet lesson. The estimated time to<POS>(76,16)review this first module is<HIGHLIGHT><POS>(76,165)10<NORMAL><POS>(76,185)minutes.<POS>(114,16)The buttons below enable you to navigate through the modules in the lesson.<HIGHLIGHT><POS>(133,16)Lesson Menu<NORMAL><POS>(133,108)brings you back to the Lesson Menu;<HIGHLIGHT><POS>(133,327)Glossary<NORMAL><POS>(133,390)displays a<POS>(152,16)glossary of Internet terms;<HIGHLIGHT><POS>(152,171)Help<NORMAL><POS>(152,205)displays online help;<HIGHLIGHT><POS>(152,327)Next<NORMAL><POS>(152,361)and<HIGHLIGHT><POS>(152,386)Previous<NORMAL><POS>(171,16)display the next and previous screen in the module.<POS>(209,16)Please click on<HIGHLIGHT><POS>(209,109)Next<NORMAL><POS>(209,143)to begin.
1_51_1[<POS>(0,0)  Internet Overview: Introduction
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4_21_1[<POS>(19,16)First, what is the Internet?<BDJ>(14,57,125,57,light,1)WHAT IS THE INTERNET? <ARROW>(139,85,30,3)<BDJ>(169,57,125,57,nolight,2)HOW DOES IT WORK? <ARROW>(294,85,30,3)<BDJ>(324,57,125,57,nolight,3)HOW DO I GET IT? 
4_51_1[<POS>(0,0)Internet Overview:  What Is the Internet?
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7_21_1[<HIGHLIGHT><POS>(19,117)What is it?<NORMAL><POS>(57,16)The Internet is a "network of networks" which<POS>(76,16)connects both individual computers and<POS>(95,16)networks of computers all over the world. It<POS>(114,16)enables millions of computers to exchange<POS>(133,16)information.
7_51_1[<POS>(0,0)Internet Overview:  What Is the Internet?
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3_21_1[<POS>(19,16)What is now called "The Internet" originally began as a<POS>(38,16)communications network for U.S. military computers in the late<POS>(57,16)1960's. In a short time, various companies which did contract<POS>(76,16)work for the military were added to the network, along with some<POS>(95,16)university research centers.
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3_51_1[<POS>(0,0)Internet Overview:  What Is the Internet?
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9_21_1[<POS>(19,16)Having outgrown its original function<POS>(38,16)as a private military-industrial<POS>(57,16)communications link, the Internet<POS>(76,16)has recently emerged on the<POS>(95,16)commercial scene. Today's Internet<POS>(114,16)serves millions of private<POS>(133,16)businesses and individuals. New<POS>(152,16)uses for the Internet are being<POS>(171,16)developed every day.
9_51_1[<POS>(0,0)Internet Overview:  What Is the Internet?
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10_21_1[<POS>(19,16)Although it is virtually impossible to get an exact count of the actual<POS>(38,16)number of computers or individuals using the Internet, some best-guess<POS>(57,16)estimates have been put together by The Internet Society. These figures,<POS>(76,16)which can be displayed by clicking with the<HIGHLIGHT><POS>(76,270)right<NORMAL><POS>(76,303)mouse button on the<POS>(95,16)"question marks" in the upper-left margin, provide an indication of the<POS>(114,16)magnitude of Internet usage today.
10_71_5[<POS>(0,8)Sorry. No hint available. Click on<HIGHLIGHT><POS>(0,200)Next<NORMAL><POS>(0,234)to continue.
10_51_1[<POS>(0,0)Internet Overview:  What Is the Internet?
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8_21_1[<POS>(19,16)Now, how does the Internet work?<BDJ>(6,57,125,57,nolight,1)WHAT IS THE INTERNET? <ARROW>(131,85,30,3)<BDJ>(161,57,125,57,light,2)HOW DOES IT WORK? <ARROW>(286,85,30,3)<BDJ>(316,57,125,57,nolight,3)HOW DO I GET IT? 
8_51_1[<POS>(0,0)Internet Overview:  How Does the Internet Work?
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14_21_1[<HIGHLIGHT><POS>(19,161)How does it work?<NORMAL><POS>(57,16)The Internet routes information from one location to another. It is<POS>(76,16)important to understand that computers communicate in digital form.<POS>(95,16)This means that all information (or data) is represented as a series of<POS>(114,16)digits or bits.<POS>(152,16)Let's consider for a moment how data is transferred from your<POS>(171,16)computer to a printer.
14_51_1[<POS>(0,0)Internet Overview:  How Does the Internet Work?
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26_21_1[<POS>(19,16)The computer sends a stream of data to the printer which contains text<POS>(38,16)and instructions for the printer to determine what size margins to use,<POS>(57,16)what type face, and so on.<POS>(95,16)When a similar stream of data is sent to another computer via the<POS>(114,16)Internet, the stream is broken into smaller units of digital data called<POS>(133,16)"packets".
26_51_1[<POS>(0,0)Internet Overview:  How Does the Internet Work?
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15_21_1[<POS>(19,16)As the packets travel through the<POS>(38,16)Internet, they are reassembled by<POS>(57,16)the receiving computer. Each<POS>(76,16)packet includes complete<POS>(95,16)addressing information which tells<POS>(114,16)where it came from, where it is<POS>(133,16)going, and where it belongs in the<POS>(152,16)complete data stream.
15_31_1[<POS>(0,16)Please click on<HIGHLIGHT><POS>(0,109)SENDER<NORMAL><POS>(0,170).
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15_51_1[<POS>(0,0)Internet Overview:  How Does the Internet Work?
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5_21_1[<POS>(19,16)To standardize the transfer of data between computers,<POS>(38,16)a set of routing rules, or protocol, was developed. This<POS>(57,16)protocol is called<HIGHLIGHT><POS>(57,118)TCP/IP<NORMAL><POS>(57,165). TCP/IP sets guidelines for<POS>(76,16)giving each computer its own address. This address,<POS>(95,16)called an IP address, is a unique set of numbers in a<POS>(114,16)special format. For example, 199.203.3.202 is the IP<POS>(133,16)address of a specific computer attached to the Internet.
5_51_1[<POS>(0,0)Internet Overview:  How Does the Internet Work?
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16_21_1[<POS>(19,16)Although the IP address works properly when<POS>(38,16)computers are contacting each other, it is difficult<POS>(57,16)for most people to remember. For this reason, the<POS>(76,16)Domain Name System was established to give<POS>(95,16)each IP address a unique alphanumeric name, for<POS>(114,16)example: "bob.company.com".
16_31_1[<POS>(0,16)Please click on "bob.company.com".
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16_51_1[<POS>(0,0)Internet Overview:  How Does the Internet Work?
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13_21_1[<POS>(19,16)Finally, how do I get the Internet?<BDJ>(14,57,125,57,nolight,1)WHAT IS THE INTERNET? <ARROW>(139,85,30,3)<BDJ>(169,57,125,57,nolight,2)HOW DOES IT WORK? <ARROW>(294,85,30,3)<BDJ>(324,57,125,57,light,3)HOW DO I GET IT? 
13_51_1[<POS>(0,0)Internet Overview:  How Do I Get the Internet?
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19_21_1[<HIGHLIGHT><POS>(19,61)Connecting to the Internet<NORMAL><POS>(57,16)Although there are a number of ways to<POS>(76,16)connect your computer to the Internet, the<POS>(95,16)two basic methods are a<HIGHLIGHT><POS>(95,162)dial-up<NORMAL><POS>(114,16)connection or a<HIGHLIGHT><POS>(114,109)dedicated<NORMAL><POS>(114,176)connection.
19_71_5[<POS>(0,8)Sorry. No hint available. Click on<HIGHLIGHT><POS>(0,200)Next<NORMAL><POS>(0,234)to continue.
19_51_1[<POS>(0,0)Internet Overview:  How Do I Get the Internet?
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24_21_1[<POS>(19,16)A dial-up connection uses a modem and a<POS>(38,16)telephone line to make a temporary connection<POS>(57,16)to an Internet access point. That point is<POS>(76,16)usually at an Internet access provider, which is<POS>(95,16)a business that sells connection time by the<POS>(114,16)month or hour on a subscription basis.
24_51_1[<POS>(0,0)Internet Overview:  How Do I Get the Internet?
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20_21_1[<POS>(19,16)A special type of dial-up account is available<POS>(38,16)through online services such as America<POS>(57,16)Online, CompuServe, and Prodigy. This<POS>(76,16)special account not only provides you access<POS>(95,16)to the Internet, but also to the other services<POS>(114,16)offered by these online providers.
20_71_5[<POS>(0,8)Sorry. No hint available. Click on<HIGHLIGHT><POS>(0,200)Next<NORMAL><POS>(0,234)to continue.
20_51_1[<POS>(0,0)Internet Overview:  How Do I Get the Internet?
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21_21_1[<POS>(19,16)Another way to connect to the Internet is through a dedicated connection. A dedicated<POS>(38,16)connection means that a computer is online with the Internet all the time. This is the way<POS>(57,16)most local area networks (LANs) are attached to the Internet. This enables any properly<POS>(76,16)configured computer on the LAN to access the Internet without having to make a dial-up<POS>(95,16)connection. This type of connection is most often found in businesses.
21_51_1[<POS>(0,0)Internet Overview:  How Do I Get the Internet?
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22_21_1[<POS>(19,16)This module provided you the opportunity<POS>(38,16)to learn the following about the Internet:<POS>(76,24)*<POS>(76,41)What is it?<POS>(95,24)*<POS>(95,41)How does it work?<POS>(114,24)*<POS>(114,41)How do I get it?<POS>(152,16)Please click on<HIGHLIGHT><POS>(152,109)Lesson Menu<NORMAL><POS>(152,201)to return to<POS>(171,16)the Lesson Menu.
22_51_1[<POS>(0,0)Internet Overview:  Conclusion