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PST SC015 Chapter 3 Internet Technology (II) 2017/2018

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Fizaril Amzari Omar
Fizaril Amzari Omar

This document discusses various aspects of the World Wide Web including: - Web browsers allow users to access web pages and web 2.0 programs with examples including Internet Explorer, Firefox, Opera, Safari, and Google Chrome. - Web pages have unique addresses called URLs that identify their location and are composed of protocols, hostnames, domains, paths, and filenames. - Users can navigate web pages through hyperlinks that connect related pages and allow nonlinear access to information. - Web searching is done through search engines that use keyword queries or subject directories that categorize pages by topic.

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Chapter Three 3.2 The Internet 3.2.2 World Wide Web 3.2.2.1 Web Browser At the end of this topic, students should be able to: a. Explain the purpose of Web browser b. List examples of Web browser 1
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, such as documents and pictures which stored on web server. • 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 share, modify, provide information(social network web site, wikis) Discovering Computers : Chapter 2 2 Pages 80 - 81
Web Page • Web page is an electronic document on the Web, which can contain text, graphics, animation, audio, and video and often has built-in connections to other documents, graphics, Web pages, or Web sites • Some Web pages are static (fixed); others are dynamic (changing). • Visitors to a static Web page all see the same content. With a dynamic Web page, by contrast, visitors can customize some or all of the viewed content such as desired stock quotes, weather for a region, or ticket availability for flights. 3
Web Browser • A Web browser, or browser, is application software that allows users to access Web pages and Web 2.0 programs • Most current browsers support tabbed browsing. 4 Internet Explorer Firefox Opera Safari Google Chrome
5
Home Page • 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 such as a web page from a web server on the Internet • Uploading is the process of transferring documents, graphics and other objects from a computer to a server on the Internet. 6 • Some Web pages are designed specifically for micro browsers
Chapter Three 3.2 The Internet 3.2.2 World Wide Web 3.2.2.2 Web Address At the end of this topic, students should be able to: - Identify the components of Web address 1
Web Address • A Web page has a unique address called a uniform Resource Locator (URL) or Web address • For example, the home page for the KMPk Web site has http://www.kmpk.matrik.edu.my as its Web address. A Web browser retrieves a Web page using its Web address. • A Web address consists of a protocol, host name, domain name, path and web page name or file name. Web page addresses begin with http:// or https://. 2
3 Components of Web Address
http:// • The http, which stands for Hypertext Transfer Protocol, is a set of rules that defines how pages transfer on the Internet. https:// • Protocol for secured web pages Other types of protocol • ftp:// – FTP (File Transfer Protocol) is an Internet standard that permits file uploading and downloading with other computers on the Internet. • SMTP (simple mail transfer protocol) used by mail server – is a communications protocol used by some outgoing mail servers. • POP 3(Post Office Protocol ) used by mail clients – is a communications protocol used by some incoming mail servers. 4
Chapter Three 3.2 The Internet 3.2.2 World Wide Web 3.2.2.3 Web Page Navigation At the end of this topic, students should be able to: - Identify different ways of navigation 1
• The home page usually contains links to other documents, Web pages, or Web sites. • A link, short for hyperlink, is a built-in connection to another related Web page or part of a Web page. • Most Web pages contain hypertext or hypermedia links. 2 Navigating Web Pages
• Hypertext refers to links in text-based documents. • Hypermedia combines text-based links with graphic, audio, and video links. • Links allow you to obtain information in a nonlinear way. That is, instead of accessing topics in a specified order, you move directly to a topic of interest. • Branching from one related topic to another in a nonlinear fashion is what makes links so powerful. •Surfing the web - The activity of using links to explore the web 3 Hypertext and Hypermedia
5 Page 84 Figure 2-9
Chapter Three 3.2 The Internet 3.2.2 World Wide Web 3.2.2.4 Web Searching At the end of this topic, students should be able to: - Explain two types of search tools 1
Web Searching • Two types of search tools are search engines and subject directories 2 Search engine A software use to find websites, web pages, images, videos, news, maps and other information related to a specific topic Subject directory Classifies Web pages in an organized set of categories such as sports or shopping
Discovering Computers 2011: Living in a Digital World Chapter 2 3
Discovering Computers 2011: Living in a Digital World Chapter 2 4 Search Engine (Keyword search) • Search engines require that you enter a word or phrase, called search text or search query, that describes the item you want to find. • Each word in the search text is known as a keyword. • Search engines often respond with thousands of results, whose content varies depending on the type of information you are seeking. • A search engine is helpful in locating items such as: Images Videos Audio News Maps People or Businesses Blogs
Discovering Computers 2011: Living in a Digital World Chapter 2 5
• Some Web browsers contain an Instant Search box to eliminate the steps of displaying the search engine’s Web page prior to entering the search text 6
• Search operators can help to refine your search 7
Discovering Computers 2011: Living in a Digital World Chapter 2 8 Subject Directory (Directory search) • A subject directory provides categorized lists of links arranged by subject. • Using this search tool, you locate a particular topic by clicking links through different levels, moving from the general to the specific • Disadvantage with a subject directory is that users have difficulty deciding which categories to choose as they work through the menus of links presented
Discovering Computers 2011: Living in a Digital World Chapter 2 9

More Related Content

PST SC015 Chapter 3 Internet Technology (II) 2017/2018

  • 1. Chapter Three 3.2 The Internet 3.2.2 World Wide Web 3.2.2.1 Web Browser At the end of this topic, students should be able to: a. Explain the purpose of Web browser b. List examples of Web browser 1
  • 2. 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, such as documents and pictures which stored on web server. • 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 share, modify, provide information(social network web site, wikis) Discovering Computers : Chapter 2 2 Pages 80 - 81
  • 3. Web Page • Web page is an electronic document on the Web, which can contain text, graphics, animation, audio, and video and often has built-in connections to other documents, graphics, Web pages, or Web sites • Some Web pages are static (fixed); others are dynamic (changing). • Visitors to a static Web page all see the same content. With a dynamic Web page, by contrast, visitors can customize some or all of the viewed content such as desired stock quotes, weather for a region, or ticket availability for flights. 3
  • 4. Web Browser • A Web browser, or browser, is application software that allows users to access Web pages and Web 2.0 programs • Most current browsers support tabbed browsing. 4 Internet Explorer Firefox Opera Safari Google Chrome
  • 5. 5
  • 6. Home Page • 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 such as a web page from a web server on the Internet • Uploading is the process of transferring documents, graphics and other objects from a computer to a server on the Internet. 6 • Some Web pages are designed specifically for micro browsers
  • 7. Chapter Three 3.2 The Internet 3.2.2 World Wide Web 3.2.2.2 Web Address At the end of this topic, students should be able to: - Identify the components of Web address 1
  • 8. Web Address • A Web page has a unique address called a uniform Resource Locator (URL) or Web address • For example, the home page for the KMPk Web site has http://www.kmpk.matrik.edu.my as its Web address. A Web browser retrieves a Web page using its Web address. • A Web address consists of a protocol, host name, domain name, path and web page name or file name. Web page addresses begin with http:// or https://. 2
  • 10. http:// • The http, which stands for Hypertext Transfer Protocol, is a set of rules that defines how pages transfer on the Internet. https:// • Protocol for secured web pages Other types of protocol • ftp:// – FTP (File Transfer Protocol) is an Internet standard that permits file uploading and downloading with other computers on the Internet. • SMTP (simple mail transfer protocol) used by mail server – is a communications protocol used by some outgoing mail servers. • POP 3(Post Office Protocol ) used by mail clients – is a communications protocol used by some incoming mail servers. 4
  • 11. Chapter Three 3.2 The Internet 3.2.2 World Wide Web 3.2.2.3 Web Page Navigation At the end of this topic, students should be able to: - Identify different ways of navigation 1
  • 12. • The home page usually contains links to other documents, Web pages, or Web sites. • A link, short for hyperlink, is a built-in connection to another related Web page or part of a Web page. • Most Web pages contain hypertext or hypermedia links. 2 Navigating Web Pages
  • 13. • Hypertext refers to links in text-based documents. • Hypermedia combines text-based links with graphic, audio, and video links. • Links allow you to obtain information in a nonlinear way. That is, instead of accessing topics in a specified order, you move directly to a topic of interest. • Branching from one related topic to another in a nonlinear fashion is what makes links so powerful. •Surfing the web - The activity of using links to explore the web 3 Hypertext and Hypermedia
  • 15. Chapter Three 3.2 The Internet 3.2.2 World Wide Web 3.2.2.4 Web Searching At the end of this topic, students should be able to: - Explain two types of search tools 1
  • 16. Web Searching • Two types of search tools are search engines and subject directories 2 Search engine A software use to find websites, web pages, images, videos, news, maps and other information related to a specific topic Subject directory Classifies Web pages in an organized set of categories such as sports or shopping
  • 17. Discovering Computers 2011: Living in a Digital World Chapter 2 3
  • 18. Discovering Computers 2011: Living in a Digital World Chapter 2 4 Search Engine (Keyword search) • Search engines require that you enter a word or phrase, called search text or search query, that describes the item you want to find. • Each word in the search text is known as a keyword. • Search engines often respond with thousands of results, whose content varies depending on the type of information you are seeking. • A search engine is helpful in locating items such as: Images Videos Audio News Maps People or Businesses Blogs
  • 19. Discovering Computers 2011: Living in a Digital World Chapter 2 5
  • 20. • Some Web browsers contain an Instant Search box to eliminate the steps of displaying the search engine’s Web page prior to entering the search text 6
  • 21. • Search operators can help to refine your search 7
  • 22. Discovering Computers 2011: Living in a Digital World Chapter 2 8 Subject Directory (Directory search) • A subject directory provides categorized lists of links arranged by subject. • Using this search tool, you locate a particular topic by clicking links through different levels, moving from the general to the specific • Disadvantage with a subject directory is that users have difficulty deciding which categories to choose as they work through the menus of links presented
  • 23. Discovering Computers 2011: Living in a Digital World Chapter 2 9