IS341 - Week01 the world wide web architecture

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Explain what is world wide web Internet, HTML, and any other concepts necessary to comprehend web building
Explain how web pages are retrieved
Identify some common web site themes

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IS341 - Week01 the world wide web architecture

  1. 1. Johny Hizkia Siringo Ringo BIT (Multimedia Tech.), MIMS (Soft. Dev.) johny.hizkia@istb.ac.id johny.hizkia.ringo@gmail.com www.istb.ac.id IS341 Web Technology The WWW Architecture
  2. 2. johny.hizkia@istb.ac.id www.istb.ac.id 2 Objectives • Explain what is world wide web Internet, HTML, and any other concepts necessary to comprehend web building • Explain how web pages are retrieved • Identify some common web site themes
  3. 3. johny.hizkia@istb.ac.id www.istb.ac.id 3 Contents • Introduction • Defining the web • How does the web work • Web browser • Web server • Hypertext system • Plug in and helper application • HTML • Themes for web site • Hosting options • Summary
  4. 4. johny.hizkia@istb.ac.id www.istb.ac.id 4 The Internet • What is internet? – Collection of giant networks • WWW (World Wide Web) a.k.a Web • Web is NOT Internet
  5. 5. johny.hizkia@istb.ac.id www.istb.ac.id 5 The Web • WWW is an internet application • It is a collection of documents. – These web mostly contains the following • Multimedia rich content (text, graphic, video, sound, animation) • Web uses hypertext • Viewed using software called web browser • The web uses a specific protocol called HTTP (Hyper Text Transfer Protocol)
  6. 6. johny.hizkia@istb.ac.id www.istb.ac.id 6 The Web • How does WWW work – A client (using web browser) sends a HTTP request to a web server for a specific file – A web server contains web pages and files – The web server send the requested file back to the client – The file (mostly web page) is rendered / displayed via the web browsers – The web browsers display the information, based on the HTML code in the file.
  7. 7. johny.hizkia@istb.ac.id www.istb.ac.id 7 The Web
  8. 8. johny.hizkia@istb.ac.id www.istb.ac.id 8 Web Browsers • A web browser is a software application for retrieving, presenting, and traversing information resources on the World Wide Web. • Example of web browsers – Mozilla Firefox – Internet Explorer – Safari (Mac users) – Opera – Many more….
  9. 9. johny.hizkia@istb.ac.id www.istb.ac.id 9 Web Server • A web server is a computer program that delivers (serves) content, such as web pages, using the Hypertext Transfer Protocol (HTTP), over the World Wide Web. • Example of Web Server – Apache (Widely used ~ 54%) – IIS (Second widely used ~ 24%) – Nginx – Lighttpd
  10. 10. johny.hizkia@istb.ac.id www.istb.ac.id 10 Some Terminology • Domain Names – A domain name is an identification label that defines a realm of administrative autonomy, authority, or control on the Internet, based on the Domain Name System (DNS). • DNS (Domain Name System) – it serves as the "phone book" for the Internet by translating human-friendly computer hostnames into IP addresses. For example, www.example.com translates to 192.0.32.10.
  11. 11. johny.hizkia@istb.ac.id www.istb.ac.id 11 Some Terminology • URL (Uniform Resource Locator) – Abbreviation of Uniform Resource Locator, the global address of documents and other resources on the World Wide Web. – The first part of the address is called a protocol identifier and it indicates what protocol to use, and the second part is called a resource name and it specifies the IP address or the domain name where the resource is located. The protocol identifier and the resource name are separated by a colon and two forward slashes. – ftp://www.pcwebopedia.com/stuff.exe – http://www.pcwebopedia.com/index.html
  12. 12. johny.hizkia@istb.ac.id www.istb.ac.id 12 Web 2.0
  13. 13. johny.hizkia@istb.ac.id www.istb.ac.id 13 Web 2.0 • The term "Web 2.0" is commonly associated with web applications that facilitate interactive information sharing, interoperability, user- centered design,[1] and collaboration on the World Wide Web.
  14. 14. johny.hizkia@istb.ac.id www.istb.ac.id 14 Hypertext and Hypermedia • Hypertext is the basis of navigation on the web. • A web page contains hyperlinks (which can be text or an icon) that connect to another section within the web page, to another page or web server. • Provides easy searching and browsing by associating information. • Non-linear non-sequential viewing. • Hypertext that involves multimedia elements are known as hypermedia.
  15. 15. johny.hizkia@istb.ac.id www.istb.ac.id 15 Plug in and helper applications • These programs are used to extend the functions of the browser – Ex: playing video clips, sound and documents (like PDF) • Plug in is closely tied to the browser and launches in the browser window, whereas helper application is a stand alone program that launches in separate window.
  16. 16. johny.hizkia@istb.ac.id www.istb.ac.id 16 Quick Time Player
  17. 17. johny.hizkia@istb.ac.id www.istb.ac.id 17 PDF Reader
  18. 18. johny.hizkia@istb.ac.id www.istb.ac.id 18 Other Plugins
  19. 19. johny.hizkia@istb.ac.id www.istb.ac.id 19 HTML • HyperText Markup Language • Common display language used in web pages • Contains markup tags for display instructions • Can be created using plain text editor • A HTML web page has a html or htm extension
  20. 20. johny.hizkia@istb.ac.id www.istb.ac.id 20 W3Schools says: • We think a Web developer should focus on: – The HTML 4.01 standard (HTML 5.0 ??) – The use of CSS (Style sheets) – The new XHTML – XML and XSL – Server Side Scripting – Managing data with SQL – Running an “information” server
  21. 21. johny.hizkia@istb.ac.id www.istb.ac.id 21 Web Site Themes • Personal interest • Educational interest • Commercial • Online publication and news • Community groups, clubs, organizations • Common interests or ideas
  22. 22. johny.hizkia@istb.ac.id www.istb.ac.id 22 Hosting Web Site • A web site must be stored in a web server which is permanently connected to the internet • Host on our own web server • Use Internet Service Provider’s service • Free hosting on the web
  23. 23. johny.hizkia@istb.ac.id www.istb.ac.id 23 Summary • The World Wide Web is one of the facilities that uses the Internet. • The World Wide Web consists of HTML pages, which are stored in web server and displayed using web browsers. • A web site may have various themes ranging from personal interest, educational to commercial.
  24. 24. johny.hizkia@istb.ac.id www.istb.ac.id 24 Exercise • What is the web? What is the relationship between the web and the Internet? • What is HTML? Is it necessary to learn HTML in order to create a website? • Explain how a browser displays a web page • Give examples of web browsers • What are plug ins and helper applications? What are they for? What are the differences between them?

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