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Chapter 2 The Internet and World Wide Web. The Internet What are some services found on the Internet? p. 50 Fig. 2-1 Next.

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Presentation on theme: "Chapter 2 The Internet and World Wide Web. The Internet What are some services found on the Internet? p. 50 Fig. 2-1 Next."— Presentation transcript:

1 Chapter 2 The Internet and World Wide Web

2 The Internet What are some services found on the Internet? p. 50 Fig. 2-1 Next

3 The Internet How did the Internet originate? Next p. 50 Goal: To function if part of network were disabled Became functional September 1969 ARPANET Networking project by Pentagons Advanced Research Projects Agency (ARPA) Goal: To allow scientists at different locations to share information

4 The Internet How has the Internet grown? p. 50 Today More than 200 million computer linked hosts 1984 More than 1,000 hosts 1969 Four hosts Next

5 The Internet Who controls the Internet? p. 51 World Wide Web Consortium (W3C) Oversees research, sets standards and guidelines Next No one c c it is a public, cooperative, and independent network Several organizations set standards

6 How the Internet Works How might data travel the Internet using a cable modem connection? p. 52 Fig. 2-2 Next

7 How the Internet Works What is a domain name? p. 53 Figs. 2-3 – 2-4 Next Text version of Internet protocol (IP) address Number that uniquely identifies each computer or device connected to Internet

8 The World Wide Web What is a Web browser? p. 54 Next Microsoft Internet Explorer Netscape Mozilla Program that allows you to view Web pages OperaSafari

9 The World Wide Web What is a URL? p. 56 Fig. 2-6 Next Unique address for a Web page A web server delivers the Web page to your computer Click to view Web Link, click Chapter 2, Click Web Link from left navigation, then click Web Addresses below Chapter 2

10 The World Wide Web What is a search engine? p. 57 Fig. 2-8 Next Program used to find Web sites and Web pages by entering words or phrases called search text

11 Other Internet Services How does an message travel? p. 70 Fig Next Step 1. Using software, you create and send message Step 2. Your software contacts software on your ISPs outgoing mail server Step 4. When recipient uses software to check for messages, the message transfers from incoming mail server to recipients computer Step 3. Software on outgoing mail server determines best route for data and sends message, which travels along Internet routers to recipients incoming mail server

12 Other Internet Services What is FTP? p. 71 Next File Transfer ProtocolInternet standard that permits you to upload and download files with other computers on the Internet


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