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WEB PAGES: CREATING AND MAINTAINING **

WEB PAGES: CREATING AND MAINTAINING **. Wednesday: 10:15 -11:30. Instructor: Cajetan Cordeiro TA: Tom Keane. Email: Cordeicf@Udel.Edu. Email: Cordeicf@Udel.Edu. Class Web Site: http://udel.edu/~cordeicf/web. Class Web Site: http://udel.edu/~cordeicf/web.

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WEB PAGES: CREATING AND MAINTAINING **

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  1. WEB PAGES: CREATING AND MAINTAINING ** Wednesday: 10:15 -11:30 Instructor: Cajetan Cordeiro TA: Tom Keane Email: Cordeicf@Udel.Edu Email: Cordeicf@Udel.Edu Class Web Site: http://udel.edu/~cordeicf/web Class Web Site: http://udel.edu/~cordeicf/web

  2. Acknowledgements and Gratitude to Frank Romanelli who developed this course

  3. PCs challenge TVs for leisure attention “ The personal computer souped up with gigahertz of processing power and speedy Internet connections is now a serious competitor for the TV when it comes to how we spend our leisure time at home. ” TheNewsJournal - Oct, 2003 “CoffeeBreak”

  4. Survey of 500 home computer owners Want to spend more time to: • 30% manage & edit digital photos • 21 % edit videos • 17 % burn DVD’s • 32 % want to publish a web site 62 percent, said they expect the amount of things they do on their computer to increase over the next year

  5. So, you want to make a web page… How many web pages are there on the Internet ? Answers to some basic questions…. www.google.com • indexes the greatest number of web pages • provides a free service that searches this index in less than a second. • as of December 2001 !! Google Mar 2009- Searching 25.21 billion web pages May 2009,- over 109.5 million websites operated. over two billion The current estimated World Population is ~6.8 billion people *from the www.census.gov Feb 8, 2010

  6. What is a web page ?? • An HTML file • Located on the World Wide Web • Often hyperlinked to other documents on the Web • May reference other related files A text file with HyperText MarkupLanguage A large network of server and client computers

  7. A depiction of a small portion of the Internet

  8. A root server and IP addresses

  9. Server - Comcast User Server – Udel.edu Server Verizon

  10. C:\Users\Cajetan>tracert udel.edu Tracing route to udel.edu [128.175.13.92] over a maximum of 30 hops: 1 7 ms 1 ms <1 ms 192.xxx.xx.xx 2 * * * Request timed out. 3 9 ms 9 ms 8 ms s01e1.springfield.ga.savannah.comcast.net [68.86.193.85] 4 10 ms 10 ms 10 ms te-1-1-ur01.tyboutscrnr.de.panjde.comcast.net [68.86.209.118] 5 9 ms 8 ms 9 ms 68.85.35.42 6 10 ms 11 ms 11 ms te-0-1-0-7-ar01.newcastle.de.panjde.comcast.net [68.86.153.246] 7 13 ms 11 ms 11 ms pos-0-4-0-0-ar01.401nbroadst.pa.panjde.comcast.net [68.86.210.209] 8 11 ms 11 ms 11 ms te-1-1-ur01.401nbroadst.pa.panjde.comcast.net [68.86.158.154] 9 12 ms 10 ms 11 ms ge-3-2-pr01.philly.pa.core.comcast.net [68.86.153.225] 10 10 ms 10 ms 10 ms 69.241.68.214 11 15 ms 13 ms 13 ms remote.udel1.magpi.net [216.27.98.38] 12 13 ms 11 ms 12 ms chp-rt2-v9.nss.udel.edu [128.175.111.10] 13 13 ms 12 ms 12 ms copland.udel.edu [128.175.13.92] Trace complete.

  11. What is a web page ?? • An HTML file • A Text file with HyperText Markup Language • Located on the World Wide Web • A huge network of servers and clients • Often hyperlinked to other documents on the Web • May reference other related files Access other web pages through links Pictures, sound, videos ...

  12. Dial-up Cable DSL FIOS How do I access a web page ? Connected to a Server – Internet Service Provider U of D Comcast Verizon AOL Juno EarthLink

  13. Netscape Mozilla FireFox Opera Ace Explorer Google Chrome How do I access a web page ? Connected to a Server – Internet Service Provider Located on YOUR computer Browser - A program that provides a means of viewing thecontents of web pages and of navigating from onepage to another.

  14. Netscape Mozilla FireFox Opera Ace Explorer Chrome What’s a Browser do ? A browser must be able to read files (e,g, written in HTML, CSS, Javascript), from many different types of computers (PC's. Mac, PDA) & Operating Systems (e.g. Windows, MAC-OS, Linux) Specifications developed / maintained by an international consortium of developers / software companies www.w3.org

  15. Browser - Internet Explorer Address: http://www.udel.edu SuffixThe Domain Name Server (DNS) How does a browser access a web page ? I.P. Address Example 128.175.13.63

  16. The Beauty of Domain Name Servers DNS is a rather amazing distributed database. It handles billions of requests for billions of names every day through a network of millions of name servers administered by millions of people. Every time you send an e-mail message or view a URL, you are making requests to multiple name servers scattered all over the globe. What's amazing is that the process is usually completely invisible and extremely reliable! howstuffworks.com Internet Explorer Address: Server at the University of Delaware Type .com .edu .net .gov .org Locn. .ca .jp .in .cn http://www.udel.edu The Domain Name Server (DNS)

  17. Browser - Internet Explorer Address: http://www.udel.edu/index.html Default page - “ index.html ” File Name

  18. Files and Folders

  19. A: Drive C: Drive D: Drive Root Directory Windows Documents & Settings Program Files My Documents My Webfiles webfile1.html webfile2.html webfile3.html

  20. Internet Explorer Address: Sub-domain “www” Suffix “edu” Domain “udel.edu” Sub-folder name & File name An Internet Address http://www.udel.edu/academy/index.html

  21. Internet Explorer Address: Browser files can be: On a web server http://www.udel.edu/academy/index.html On your own computer C:/my documents/my webfiles/index.html

  22. Internet Explorer Address: http://udel.edu/academy/index.html

  23. Internet Explorer Address: hypertext transport protocol http://www.udel.edu/academy/index.html Other protocols include : FTP – File transfer protocol

  24. WEB PAGES: CREATING AND MAINTAINING ** • L19 • Wednesday: 10:15 a.m.-11:15 a.m. • Instructor: Cajee Cordeiro • This fast-paced, in-depth course challenges students to learn the skills necessary to design, create, and publish a Web site using various programming methods with emphasis on learning HTML. • Limited to 12 students. with emphasis on learning HTML Amount of outside preparation required for each class: *  0-1 hours **  1-2 hours ***  more than 2 hours

  25. Tools! • Computer • Internet Connection • Browser ( to view ) • Software Program ( to create ) with emphasis on learning HTML Notepad • Microsoft Front Page • Netscape (Mozilla) Composer • MS WORD • Power Point • Etc, etc etc … WYSIWYG Editors

  26. Steps in creating a Basic Web Site Plan Your Site Plan Your Site Plan Your Site Plan Your Site Plan Your Site Plan Your Site Plan Your Site Plan Your Site Plan Your Site Enter Your Text and Headlines Add Graphics Use Tables to Organize Information Add “links” to other pages Get a Host Domain Name Publish Your Web Site

  27. Discussion… Questions… Dial-Up Web Pages DSL HTML W.W.W. index.html Browser DNS I.S.P. Client Server HTTP

  28. http://udel.edu/~cordeicf/web Frank Romanelli’s Sample Sites Civic League Frank and Ronni’s Family CPAW Pencader Heritage Yahoo! Web Site - Examples

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