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Chapter 2 the Internet & World Wide Chapter 2 The Internet & World Wide Web 1 OBJECTIVES OVERVIEW Explain the purpose Identify and briefly Describe the types of of a Web browser and describe various Internet access identify the broadband Internet providers components of a Web connections address Describe how to use a search engine to Describe the types of search for Web sites information on the Web 2 OBJECTIVES OVERVIEW Recognize how Web pages use graphics, Identify the steps animation, audio, video, required for Web virtual reality, and plug- publishing ins Explain how e-mail, mailing lists, instant messaging, chat rooms, Identify the rules of VoIP, FTP, and netiquette newsgroups and message boards work 3 THE INTERNET The Internet is a worldwide collection of networks that links millions of businesses, government agencies, educational institutions, and individuals 4 THE INTERNET The Internet originated as ARPANET in September 1969 and had two main goals: Allow scientists at Function even if part different physical of the network were locations to share disabled or destroyed information and work by a disaster together 5 THE INTERNET 1986 NSF connects NSFnet to 1969 ARPANET and ARPANET becomes 1996 becomes known as the Internet2 is functional Internet founded 1984 1995 NSFNet Today More ARPANET has terminates its than 550 more than network on million hosts 1,000 the Internet connect to individual and resumes the Internet computers status as linked as research hosts network 6 THE INTERNET Many home and small business users connect to the Internet via high-speed broadband Internet service Fiber to Cable Cellular Satellite the Fixed Internet DSL Wi-Fi Radio Internet Premises wireless service Network Service (FTTP) 7 THE INTERNET An access provider is a business that provides individuals and organizations access to the Internet free or for a fee 8 THE INTERNET Wireless ISP (Internet Online service Internet service service provider) provider (OSP) provider (WISP) Regional ISPs Provides wireless Has many provide Internet Internet access to members-only access to a specific computers and features geographical area mobile devices Popular OSPs National ISPs include AOL provide Internet May require a (America Online) access in cities and wireless modem and MSN (Microsoft towns nationwide Network) 9 THE INTERNET 10 THE INTERNET An IP address is a number that uniquely identifies each computer or device connected to the Internet A domain name is the text version of an IP address .Top-level domain (TLD) 11 THE INTERNET 12 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 related Web pages and associated items A Web server is a computer that delivers requested Web pages to your computer Web 2.0 refers to Web sites that provide a means for users to interact 13 THE WORLD WIDE WEB A Web browser, or browser, allows users to access Web pages and Web 2.0 programs Internet Firefox Opera Explorer Google Safari Chrome 14 THE WORLD WIDE WEB 15 THE WORLD WIDE WEB A home page is the first page that a Web site displays Web pages provide links to other related Web pages . Surfing the Web Downloading is the process of receiving information 16 THE WORLD WIDE WEB A Web page has a unique address called a URL or Web address 17 THE WORLD WIDE WEB Tabbed browsing allows you to open and view multiple Web pages in a single Web browser window 18 THE WORLD WIDE WEB Two types of search tools are search engines and subject directories Search Subject engine directory Finds Classifies Web information pages in an related to a organized set of specific topic categories 19 THE WORLD WIDE WEB 20 THE WORLD WIDE WEB A search engine is helpful in locating items such as: Images Videos Audio News People or Maps Blogs Businesses 21 THE WORLD WIDE WEB 22 THE WORLD WIDE WEB There are thirteen types of Web sites Portal News Informational Business/Marketing Blog Wiki Online Social Educational Network 23 THE WORLD WIDE WEB Entertainment Advocacy Web Application Content Personal Aggregator 24 THE WORLD WIDE WEB Information presented on the Web must be evaluated for accuracy No one oversees the content of Web pages 25 THE WORLD WIDE WEB Multimedia refers to any application that combines text with: 26.
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