K201 Chapter 02

K201 Chapter 02 - Living in a Digital World Discovering...

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Unformatted text preview: Living in a Digital World Discovering Computers 2010 Objectives Over view Discovering Computers 2010: Living in a Digital World Chapter 2 2 See Page 73 for Detailed Objectives Objectives Over view Discovering Computers 2010: Living in a Digital World Chapter 2 3 See Page 73 for Detailed Objectives The I nter net The I nter net is a worldwide collection of networks that links millions of businesses, gover nment agencies, educational institutions, and individuals Discovering Computers 2010: Living in a Digital World Chapter 2 4 Page 74 Figure 2-1 Evolution of the I nter net The I nter net or iginat ed as ARPANET in September 1969 and had two main goals: Discovering Computers 2010: Living in a Digital World Chapter 2 5 Page 75 Evolution of the I nter net Discovering Computers 2010: Living in a Digital World Chapter 2 6 Pages 75 - 76 Evolution of the I nter net Each organization is responsible only for maintaining its own network The World Wide Web Consor tium (W3C) oversees research and sets guidelines and standards I nt er net2 connects more than 200 universities and 115 companies via a high- speed pr ivate network Discovering Computers 2010: Living in a Digital World Chapter 2 7 Page 76 Click to view Web Link, click Chapter 2, Click Web Link from left navigation, then click W3C below Chapter 2 Evolution of the I nter net Many home and small business users connect to the I nt er net via high-speed broadband I nter net ser vice Discovering Computers 2010: Living in a Digital World Chapter 2 8 Page 76 Evolution of the I nter net An access pr ovider is a business that provides individuals and organizations access to the I nt er net free or for a fee Discovering Computers 2010: Living in a Digital World Chapter 2 9 Page 77 Figure 2-2 Evolution of the I nter net Discovering Computers 2010: Living in a Digital World Chapter 2 10 Page 78 Click to view Web Link, click Chapter 2, Click Web Link from left navigation, then click Wireless Modems below Chapter 2 Evolution of the I nter net Discovering Computers 2010: Living in a Digital World Chapter 2 11 Page 79 Figure 2-3 Evolution of the I nter net An I P addr ess is a number that uniquely identifies each computer or device connect ed t o the I nt er net A domain name is the text version of an I P address Top-level domain (TLD) A DNS ser ver translat es the domain name into its associat ed I P address Discovering Computers 2010: Living in a Digital World Chapter 2 12 Pages 79 80 Figure 2-4 Evolution of the I nter net Discovering Computers 2010: Living in a Digital World Chapter 2 13 Page 80 Figure 2-5 The World Wide Web The World Wide Web , or Web , consists of a worldwide collection of electronic documents ( Web pages ) A Web site is a collection of relat ed Web pages and associat ed it ems A Web ser ver is a comput er that delivers...
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K201 Chapter 02 - Living in a Digital World Discovering...

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