Discovering Computers Chapter 2

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  • Objectives OverviewDiscovering Computers and Microsoft Office 2007Chapter 2*See Page 43 for Detailed Objectives

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • Objectives Overview*See Page 43 for Detailed ObjectivesDiscovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The InternetThe Internet is a worldwide collection of networks that links millions of businesses, government agencies, educational institutions, and individuals*Page 44 Figure 2-1Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The InternetThe Internet originated as ARPANET in September 1969 and had two main goals:*Page 44Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The Internet*Page 44Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The InternetMany home and small business users connect to the Internet via high-speed broadband Internet service*Pages 45 - 46Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The Internet*Page 46Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The Internet*Page 46Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The Internet*Page 47 Figure 2-2Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The InternetAn IP address is a number that uniquely identifies each computer or device connected to the InternetA domain name is the text version of an IP addressTop-level domain (TLD)*Page 48 Figure 2-3Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The Internet*Page 48 Figure 2-4Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The World Wide WebThe 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 itemsA Web server is a computer that delivers requested Web pages to your computerWeb 2.0 refers to Web sites that provide a means for users to interact*Page 49Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The World Wide WebA Web browser, or browser, allows users to access Web pages and Web 2.0 programs*Page 49Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The World Wide Web*Page 50 Figure 2-5Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The World Wide WebA home page is the first page that a Web site displaysWeb pages provide links to other related Web pagesSurfing the WebDownloading is the process of receiving information*Pages 50 52Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The World Wide WebA Web page has a unique address called a URL or Web address*Page 51 Figure 2-6Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The World Wide WebTabbed browsing allows you to open and view multiple Web pages in a single Web browser window*Page 52 Figure 2-7Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The World Wide WebTwo types of search tools are search engines and subject directories*Page 53Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The World Wide Web*Page 53 Figure 2-8Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The World Wide WebA search engine is helpful in locating items such as:*Page 54Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The World Wide Web*Page 54 Figure 2-9Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The World Wide WebThere are thirteen types of Web sites*Pages 55 - 57Figure 2-11Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The World Wide Web*Pages 57 - 58 Figure 2-11Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • Video: Tell Your Stories via Vlog*CLICK TO STARTDiscovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The World Wide WebInformation presented on the Web must be evaluated for accuracyNo one oversees the content of Web pages*Page 58 Figure 2-12Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The World Wide WebMultimedia refers to any application that combines text with:*Page 58Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The World Wide WebA graphic is a digital representation of nontext informationGraphic formats include BMP, GIF, JPEG, PNG, and TIFFA thumbnail is a small version of a larger graphic*Pages 58 - 59 Figure 2-13Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The World Wide WebAnimation is the appearance of motion created by displaying a series of still images in sequence*Page 59Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The World Wide WebAudio includes music, speech, or any other soundCompressed to reduce file sizeYou listen to audio on your computer using a playerStreaming is the process of transferring data in a continuous and even flowVideo consists of full-motion images that are played back at various speedsVirtual reality (VR) is the use of computers to simulate a real or imagined environment that appears as a three-dimensional space*Pages 60 - 61Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The World Wide Web*Page 60 Figure 2-14Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The World Wide WebA plug-in is a program that extends the capability of a Web browser*Page 61 Figure 2-15Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • The World Wide WebWeb publishing is the development and maintenance of Web pages*Page 62Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • E-CommerceE-commerce is a business transaction that occurs over an electronic networkAnyone with access to a computer or mobile device, an Internet connection, and a means to pay for purchased goods or services can participate in e-commerce*Page 62Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • E-Commerce*Pages 62 - 63Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • E-Commerce*Pages 62 - 63 Figure 2-16Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • Other Internet ServicesE-mail is the transmission of messages and files via a computer networkAn e-mail program allows you to create, send, receive, forward, store, print, and delete e-mail messages*Pages 63 64 Figure 2-17Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • Other Internet Services*Page 65 Figure 2-18Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • Other Internet ServicesA mailing list is a group of e-mail names and addresses given a single nameSubscribing adds your e-mail name and addressUnsubscribing removes your name*Page 66Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • Other Internet ServicesInstant messaging (IM) is a real-time Internet communications service*Page 66 Figure 2-19Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • Other Internet ServicesA chat is a real-time typed conversation that takes place on a computerA chat room is a location on an Internet server that permits users to chat with each other*Page 67Figure 2-20Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • Other Internet ServicesVoIP (Voice over IP) enables users to speak to other users over the InternetAlso called Internet telephonyFTP (File Transfer Protocol) is permits file uploading and downloading*Page 68 Figure 2-21Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • Other Internet ServicesA newsgroup is an online area in which users have written discussions about a particular subjectTypically requires a newsreaderA message board is a Web-based type of discussion group*Pages 68 - 69 Figure 2-22Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • NetiquetteNetiquette is the code of acceptable Internet behavior*Page 69 Figure 2-23Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

  • Summary*Page 70Discovering Computers and Microsoft Office 2007Chapter 2

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

    Discovering Computers Fundamentals, 2011 EditionLiving in a Digital World

    Chapter 2 Complete

    Discovering Computers Fundamentals, 2011 Edition Chapter 2

    ****NsfNet National Science Foundation Network*Cable Internet Service broadband internet access that uses the cable television infrastructure. (ex: DSL and FTTP)DSL Digital Subscriber Line transmitting digital data over the wires of a local telephone network; DSL service is delivered simultaneously with wired telephone service on the same phone line.Fixed Wireless operation of wireless devices or systems used to connect two fixed locations.Cellular Radio Network system of land based cells which allows a portable transceivers such as mobile phones, to communicate with other transceivers over large geographical areas. Each of the cells communicates with a base station otherwise known as cell site.**Regional ISP ex: mactan online; National ISP ex: Smart, Globe, PLDT, Sun; OSP: can provide specific online feature or services such as email provider, news provider (press), entertainment provider (music, movies), search providers, e-shopping sites, etc*************************************