Ch01 Digital Literacy: Introducting a World of Technology

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<p>Slide 1</p> <p>Chapter 2</p> <p>The InternetDiscovering ComputersTechnology in a World of Computers, Mobile Devices, and the Internet</p> <p>1</p> <p>Objectives OverviewDiscovering Computers: Chapter 22See Page 54for Detailed Objectives</p> <p>2</p> <p>Objectives OverviewDiscovering Computers: Chapter 23See Page 54for Detailed Objectives</p> <p>3</p> <p>The InternetThe Internet is a worldwide collection of networks that links millions of businesses, government agencies, educational institutions, and individuals</p> <p>Discovering Computers: Chapter 24Pages 54 - 55 Figure 2-1</p> <p>4</p> <p>Evolution of the InternetThe Internet originated as ARPANET in September 1969 and had two main goals:Discovering Computers: Chapter 25Page 54</p> <p>5</p> <p>Evolution of the InternetDiscovering Computers: Chapter 26Page 54</p> <p>6</p> <p>Connecting to the InternetWith wired connections, a computer or device physically attaches via a cable or wire to a communications deviceComputers without a communications device can use a wireless modem7Page 56Discovering Computers: Chapter 2</p> <p>Connecting to the Internet</p> <p>8Page 56Figure 2-2Discovering Computers: Chapter 2</p> <p>Connecting to the Internet9Page 57Discovering Computers: Chapter 2</p> <p>Connecting to the InternetA cybercaf is a location that provides computers with Internet access, usually for a feeA hot spot is a wireless network that provides Internet connections to mobile computers and devices10Page 57Figure 2-3Discovering Computers: Chapter 2</p> <p>Connecting to the InternetDiscovering Computers: Chapter 211Page 58An Internet service provider (ISP) is a business that provides individuals and organizations access to the Internet free or for a feeBandwidth represents the amount of data that travels over a networkMegabyte (MB)Gigabyte (GB)</p> <p>11</p> <p>Connecting to the InternetDiscovering Computers: Chapter 212Page 59 Figure 2-4</p> <p>12</p> <p>Connecting to the InternetAn IP address is a sequence of numbers that uniquely identifies each computer or device connected to the InternetA domain name is a text-based name that corresponds to the IP addressA DNS server translates the domain name into its associated IP addressDiscovering Computers: Chapter 213Pages 60 - 61 Figure 2-5</p> <p>13</p> <p>Connecting to the InternetDiscovering Computers: Chapter 214Page 60 Table 2-3</p> <p>14</p> <p>Connecting to the InternetDiscovering Computers: Chapter 215Page 61 Figure 2-6</p> <p>15</p> <p>The World Wide WebThe World Wide Web (WWW), or web, consists of a worldwide collection of electronic documents (webpages)A website is a collection of related webpages and associated itemsA web server is a computer that delivers requested webpages to your computerWeb 2.0 refers to websites that provide a means for users to share personal information, allow users to modify website content, and provide applications through a browserDiscovering Computers: Chapter 216Pages 61 - 62</p> <p>16</p> <p>The World Wide WebA browser is an application that enables users with an Internet connection to access and view webpages on a computer or mobile deviceA home page is the first page that a website displaysDesktop browsers typically support tabbed browsingDiscovering Computers: Chapter 217Pages 62 - 63 Figure 2-7</p> <p>17</p> <p>The World Wide WebA webpage has a unique address called a web address or URLDiscovering Computers: Chapter 218Pages 64 - 65 Figure 2-8</p> <p>18</p> <p>The World Wide WebA web app is an application stored on a web server that you access through a browserWeb app hosts usually provide storage for users data and information on their servers, known as cloud storage19Pages 65 66Figure 2-10Discovering Computers: Chapter 2</p> <p>Types of WebsitesA search engine is software that finds websites, webpages, images, videos, news, maps, and other information related to a specific topicA subject directory classifies webpages in an organized set of categories, such as sports or shopping, and related subcategoriesDiscovering Computers: Chapter 220Pages 67 - 68</p> <p>20</p> <p>Types of WebsitesSearch operators can help to refine your searchDiscovering Computers: Chapter 221Page 68 Table 2-4</p> <p>21</p> <p>The World Wide WebThere are thirteen types of Web sitesDiscovering Computers: Chapter 222Pages 68 72 </p> <p>22</p> <p>The World Wide Web23Pages 72 75</p> <p>Discovering Computers: Chapter 2</p> <p>The World Wide Web24Pages 75 78</p> <p>Discovering Computers: Chapter 2</p> <p>The World Wide WebWeb publishing is the development and maintenance of websites25Pages 78 - 79Discovering Computers: Chapter 2</p> <p>Media on the WebMultimedia refers to any application that combines text with:Discovering Computers: Chapter 226Page 79</p> <p>26</p> <p>Media on the WebA graphic is a digital representation of nontext informationGraphic formats include BMP, GIF, JPEG, PNG, and TIFFDiscovering Computers: Chapter 227Pages 80 81Figure 2-21</p> <p>27</p> <p>Media on the WebAn infographic is a visual representation of data and information, designed to communicate quickly, simplify complex concepts, or present patterns or trendsDiscovering Computers: Chapter 228Pages 80 81Figure 2-22</p> <p>28</p> <p>Media on the WebAnimation is the appearance of motion created by displaying a series of still images in sequenceDiscovering Computers: Chapter 229Page 81</p> <p>29</p> <p>Media on the WebAudio includes music, speech, or any other soundCompressed to reduce file sizeYou listen to audio on your computer using a media playerDiscovering Computers: Chapter 230Page 82 Figure 2-23</p> <p>30</p> <p>Media on the WebVideo consists of images displayed in motionVirtual reality (VR) is the use of computers to simulate a real or imagined environment that appears as a three-dimensional spaceDiscovering Computers: Chapter 231Page 83 Figure 2-24</p> <p>31</p> <p>Media on the WebDiscovering Computers: Chapter 232Page 83</p> <p>32</p> <p>Other Internet ServicesEmail is the transmission of messages and files via a computer networkAn email program allows you to create, send, receive, forward, store, print, and delete email messagesDiscovering Computers: Chapter 233Page 84</p> <p>33</p> <p>Other Internet ServicesDiscovering Computers: Chapter 234Page 85Figure 2-25</p> <p>34</p> <p>Other Internet ServicesAn email list is a group of email addresses used for mass distribution of a messageDiscovering Computers: Chapter 235Page 86Figure 2-26</p> <p>35</p> <p>Other Internet ServicesInstant messaging (IM) is a real-time Internet communications serviceDiscovering Computers: Chapter 236Page 86Figure 2-27</p> <p>36</p> <p>Other Internet ServicesA chat is a real-time typed conversation that takes place on a computer or mobile deviceA chat room is a website or application that permits users to chat with others who are online at the same timeDiscovering Computers: Chapter 237Page 87Figure 2-30</p> <p>37</p> <p>Other Internet ServicesA discussion forum is an online area in which users have written discussions about a particular subject38Page 87Figure 2-29Discovering Computers: Chapter 2</p> <p>38</p> <p>Other Internet ServicesVoIP (Voice over IP) enables users to speak to other users over the InternetDiscovering Computers: Chapter 239Page 88Figure 2-31</p> <p>39</p> <p>Other Internet ServicesFTP (File Transfer Protocol) is an Internet standard that permits file uploading and downloading to and from other computers on the InternetMany operating systems include FTP capabilitiesAn FTP server is a computer that allows users to upload and/or download files using FTPDiscovering Computers: Chapter 240Page 88</p> <p>40</p> <p>NetiquetteNetiquette is the code of acceptable Internet behaviorDiscovering Computers: Chapter 241Page 90Figure 2-30</p> <p>41</p> <p>SummaryDiscovering Computers: Chapter 242Page 91</p> <p>42</p> <p>Chapter 2 Complete</p> <p>Chapter 2</p> <p>The InternetDiscovering ComputersTechnology in a World of Computers, Mobile Devices, and the Internet</p> <p>43</p>

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