USING THE INTERNET AND THE WORLD WIDE WEB RAYMOND ROSE

USING THE INTERNET AND THE WORLD WIDE WEB RAYMOND ROSE

LEARNING OUTCOMES the World Recognize the key elements of Web sites Surf the Internet Use search engines 2

IDENTIFYING THE INTERNET the World Understand the difference between the Internet and the World Wide Web (WWW) The Internet is a worldwide network of computers The World is a set of linked pages containing information and applications that uses the Internet to facilitate online communications 3

KEY ELEMENTS OF A WEBSITE the World The terminology related to the Internet and the World includes: ActiveX Cookie Digital Certificate and Cryptography Domain Home page HTML HTTP/HTTPS and FTP Internet Services Providers (ISPs) Podcast Really Simple Syndication, or RSS SSL Web browser Web cache Weblog (or blog ) Wiki XML 4

KEY ELEMENTS OF A WEBPAGE the World The term Webpage refers to a set of elements such as: Web site address (URL) Text Hyperlinks (text or graphic) Graphics objects Video/media Interactive elements (buttons, text boxes, radio buttons, check boxes menus and lists 5

TYPES OF WEBSITES the World Types of Web sites and the purpose of different types are: Commercial sites.com Academic or educational.edu Organizational (nonprofit).org Governmental sites.gov Search sites Secure vs. unsecure sites https & http Web sites delivering online applications.net Portal sites.info Weblogs blogs Social networking sites Facebook, Twitter, etc. Mapping and geographical imaging sites/applications Google maps Web sites hosted in different countries, the suffix can be:.it Italy.ae Arab Emirates.uk United Kingdom 6

TYPES OF WEBSITES the World From an email address as m.rossi@mit.edu, what kind of information can you learn? And from an address such as www.wikipedia.org? 7

SURFING THE WEB the World Navigate the Web using a browser by: 1. Specifying a URL or IP address in a Web browser 2. Moving from one webpage to another using hyperlinks 3. Using the Web browser s forward and back buttons and address bar 4. Going to a Web site s home page 5. Going to the home page of your Web browser 6. Open a page in another browser window 7. Open a new browser tab 8. Go to a browser tab 9. Close a browser tab 8

SURFING THE WEB the World Reload/Refresh the view of a Web page Show a history of recently visited Web sites Navigate to a previously visited site Delete history of visited sites Find specific information on a Web site 9

SURFING THE WEB the World Keyboards shortcuts used when surfing a webpage are: ALT+ arrow left / right To move on the address bar ALT + M Home F5 Refresh F11 View Full screen 10

SURFING THE WEB the World Manage Bookmarked sites/ favorite sites, including: 1. Adding a Web site or Web page to your list of Bookmarks/Favorites 2. Going to a Bookmarked/ Favorite Web site or page 3. Moving Bookmarks/Favorite sites between folders 4. Identify that Bookmarks/ Favorites can be shared with other users (via social networking sites, for example) 11

SURFING THE WEB the World Copy appropriate elements from a Web site to another application, such as copying text or media to a word processing document or presentation or copying data to a spreadsheet Download a file from a Web site to a specified location Print information from a Web site or Web page 12

BROWSER SETTINGS the World Identify settings that can be modified in a Web browser application, including: 1. Security and privacy settings, including management cookies 2. Changing a browser s default home page 13

SURFING THE WEB the World Identify problems associated with using the Web, including: 1. Page not found errors 2. Slow or interrupted page loading 3. Garbled Web page content 4. Pop-up ads 5. Pop-up ad blocker preventing access to legitimate sites 6. Web-based applications not working because of an outdated browser or missing or outdated plugin program 14

SURFING THE WEB the World 8. Need to download a specific control or add-in program to display or run certain types of content 9. Security issues related to Web sites, such as: a. Site that masquerade their true purpose and identity Spoofing b. Sites or other online communication that try to acquire sensitive information by fraudulently presenting themselves as a trusted entity, such as government bureau phishing 15

INTERNET CONTENT the World Identify ways content is created on the Internet, including: 1. Businesses, schools, governments, institutions and individuals creating Web sites for various purposes (ecommerce, entertainment, etc.) using Web design and programming languages and tools 16

INTERNET CONTENT the World 2. Weblogs blogs, easy-to-use systems that allow individuals and groups to create and edit online journals 17

INTERNET CONTENT the World 3. Wikis, online documents that allow multiple people to edit and track changes to information 18

INTERNET CONTENT the World 4. Social networking sites that allow people who have common interests or other connections to communicate and share information and other resources (contact lists, lists of favorite sites, etc.) 19

INTERNET CONTENT the World 5. Podcasts that allow people to broadcast/distribute audio content to users of computers and portable media players 20

INTERNET CONTENT the World 6. Photo, music and video sharing sites that allow people to post, distribute and share digital images, audio or video content 7. News feeds that allow people to distribute/syndicate their own news stories, press releases and other information to subscribers 21

SEARCH ENGINES the World Identify ways of searching for information, including: 1. Search engines (including general and special purpose search engines) 2. Indexes, list of links, shared bookmarks, and other sets if suggested links available on the Web sites, blogs and social network sites 3. Relevant links located within the body of online content 4. References from information sources not on the web such as library databases, academic journals, books and other publications 22

SEARCH ENGINES the World Use a search engine to search for information, including: 1. Identify effective key words to use in a search 2. Use search strings effectively and strategically 3. Refine a search when the original search generates too many links or links to the wrong type of information 4. Using advanced search tools which allow a search engine user to search and sort by date or other criteria beyond key words 23

ASSESSING INFORMATION ON THE WEB the World Identify issues regarding the quality of information found on the Internet, including: 1. Relevance (Does information relate to specific needs?) 2. Reliability (Does information come from a source that can be trusted to provide true and accurate content?) 3. Validity (Can information be verified from more than one source?) 4. Commercial, political or other bias of the site s owner 5. When information found on the Web is sufficient for a specific purpose 24

ASSESSING INFORMATION ON THE WEB the World Identify how to evaluate the quality of information found on the Web, including: 1. Understanding the nature of an information source, including: a. Institutional missions behind commercial, academic or media sites b. Weblogs which tend to represent the views of the blogs owner c. Wikis which welcome any input, but may not require qualifications or expertise on the part of contributors or editors 2. Communicating with the creator of a site 3. Analyzing internal links within a site 4. Evaluating search engine ranking results 5. Comparing information found on the Internet with other offline sources such as professional journals to clarify ambiguous or incomplete information 25

QUIZ 1. Which of the items listed below is not part of a website? a. Link b. Picture c. Dialog box 2. To which category does a website whose suffix is.com belong? a. Commercial b. Military c. Educational 3. To set the start page for Internet Explorer: a. Click Tools>Internet Options>General and type in the URL b. Click Favorites>Add page 4. What are bookmarks useful for? a. To track the history of visited webpages b. To store favorite websites c. Both of the above 5. What are Meta tags? a. A particular type of browser b. s that allow websites to be easily indexed by search engines 6. Which of the symbols listed below is not an operator used by Internet search engines? a. & b. ^ c. @ 7. What does the word Cookie mean? a. A text file containing information on users habits when surfing the Internet b. A particular type of virus that can infect computers connected to the Internet 26