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WWW Wee. San Lee weesan@cs. ucr. edu WWW Wee. San Lee [email protected] ucr. edu

Roadmap n n n n What is WWW? Web Browser What is HTML? Search Roadmap n n n n What is WWW? Web Browser What is HTML? Search Engines Google Search Citing & Referencing Conclusion References

What is WWW? n n n World Wide Web Invented by Tim Berners-Lee in What is WWW? n n n World Wide Web Invented by Tim Berners-Lee in 1991 More than billions of web pages on the Internet today

What is WWW? n n Client-server architecture Server q q n A program that What is WWW? n n Client-server architecture Server q q n A program that serves the webpages Eg. Apache, MS IIS Client q q A program that views the webpages Eg. Browsers

Web Browser n n An application to view web pages from the Internet Eg. Web Browser n n An application to view web pages from the Internet Eg. q q q q Firefox Opera Mozilla Netscape Safari IE (Internet Explorer) …

Web Browser - Example Web Browser - Example

Web Browser - URL n n Uniform/Universal Resource Locator Eg. q http: //www. cs. Web Browser - URL n n Uniform/Universal Resource Locator Eg. q http: //www. cs. ucr. edu/~weesan/ n q https: //moodle. cs. ucr. edu/ n q Hyper. Text Transfer Protocol Secure ftp: //ftp. isi. edu/ n File Transfer Protocol q mailto: [email protected] ucr. edu q file: ///c: /users/weesan/desktop/cs 006/

Web Browser - https example Web Browser - https example

Web Browser - Cache n Some temporary files such as web pages or images Web Browser - Cache n Some temporary files such as web pages or images stored on the HD to speed up browser n Shift-Reload (Shift-F 5) if the page is stale To clear the cache n q Select Tools/Options/Advanced/Network

Web Browser - Bookmarks/Favorites n n Shortcuts to your favorite pages Select Bookmarks/Bookmark this Web Browser - Bookmarks/Favorites n n Shortcuts to your favorite pages Select Bookmarks/Bookmark this page Or press Ctrl-D Use Bookmark Manager to manage your bookmarks

Web Browser - History n A list of visited pages Web Browser - History n A list of visited pages

Web Browser - Plug-ins n n Small programs that provide an environment in your Web Browser - Plug-ins n n Small programs that provide an environment in your browser for a specialized software program to run Eg. Firefox Plug-ins: q q n Adobe Acrobat Reader Adblock Mouse Gesture Tab Effect http: //addons. mozilla. org/

What is HTML? n n n Hyper. Text Markup Language The official format for What is HTML? n n n Hyper. Text Markup Language The official format for the hypertext documents, aka web pages Hypertext documents usually contains q q n Text Hypertext links/hyperlinks Images, eg. gif, jpeg, png, … Multimedia files, eg. mpeg, mov, wmv, mp 3, ra, … Usually with extension. html or. htm

HTML Example <html> <head><title>Hi</title></head> <body> <h 1>Hello World!</h 1> This is just a HTML HTML Example Hi Hello World! This is just a HTML example.

Search Engines n n A web-based application that allows users to search web pages Search Engines n n A web-based application that allows users to search web pages online via keywords Eg. q q q www. google. com www. yahoo. com www. msn. com www. alltheweb. com www. altavista. com www. excite. com

Directory Outlines n A list of topics that can be browsed and searched from Directory Outlines n A list of topics that can be browsed and searched from general to more specific

Bibliographic Databases n n References collections to research materials such as journals and books Bibliographic Databases n n References collections to research materials such as journals and books Usually a paid service, Google scholar is free

Site-Specific Search Engines and Site Maps n Search only the data on a web Site-Specific Search Engines and Site Maps n Search only the data on a web site

Metasearch Engines n An interface to several search engines and consolidating the results Metasearch Engines n An interface to several search engines and consolidating the results

FAQ Pages n Compilations of the most Frequently Asked Questions and their answers FAQ Pages n Compilations of the most Frequently Asked Questions and their answers

General References n Dictionaries q q n Encyclopedias q q q n www. dictionary. General References n Dictionaries q q n Encyclopedias q q q n www. dictionary. com www. tfd. com www. britannica. com www. encyclopedia. com www. wikipedia. com Maps q q q maps. google. com maps. yahoo. com www. mapquest. com

Searching for Jobs n n n www. jobs. com hotjobs. yahoo. com www. monster. Searching for Jobs n n n www. jobs. com hotjobs. yahoo. com www. monster. com

Search for People n n www. 411. com www. bigfoot. com www. email-lookup. com Search for People n n www. 411. com www. bigfoot. com www. email-lookup. com people. yahoo. com

Google Search AND (default) cs 6 effective use of world wide web Google Search AND (default) cs 6 effective use of world wide web

Google Search (cont) Double Quote/Exact Phase cs “effective use of world wide web” Domain Google Search (cont) Double Quote/Exact Phase cs “effective use of world wide web” Domain Search cs 6 site: ucr. edu

Google Search (cont) NOT cs 6 site: ucr. edu -doc OR cs 6 OR Google Search (cont) NOT cs 6 site: ucr. edu -doc OR cs 6 OR cs 5 site: ucr. edu

Google Search (cont) n Google Advance Search q http: //www. google. com/intl/en/help/refinesearch. html Google Search (cont) n Google Advance Search q http: //www. google. com/intl/en/help/refinesearch. html

Citing & Referencing n Need to give credit to the original source q n Citing & Referencing n Need to give credit to the original source q n n Otherwise is known as plagiarism Tell readers where to find the information Based on Publication Manual of the American Psychological Association (APA), 5 th ed.

Citing & Referencing - Example n Reference q n Rohrer, F. (2007). Is stealing Citing & Referencing - Example n Reference q n Rohrer, F. (2007). Is stealing wireless wrong? Retrieved Oct 11, 2007, from BBC NEWS Web site: http: //news. bbc. co. uk/2/hi/uk_news/magazine/6960304. stm In-text Reference q Regulations prohibit the use of wireless connectivity without owner’s consent. Some arrests had been made (Rohrer, 2007). According to Rohrer, …

Conclusion n n WWW overview Web browsers - Firefox Various online search resources Google Conclusion n n WWW overview Web browsers - Firefox Various online search resources Google Search Citing and Referencing

References n Internet Effectively q Ch 1 & 3 References n Internet Effectively q Ch 1 & 3

Homework 3 n n Research the following 2 stories, see if you can verify Homework 3 n n Research the following 2 stories, see if you can verify or disprove the claims made. Backup your conclusion with references to specific web sites. For each story, submit 2 screenshots, one from each web site you found, showing that you believe them to be true or false.

Homework 3 - story 1 THIS IS NOT A JOKE. This little boy at Homework 3 - story 1 THIS IS NOT A JOKE. This little boy at the Mayo Clinic is very sick and he knows that he will die. Well you know how they have those "Make a Wish Foundations" that give terminally ill kids a dying wish, well this is kind of like that. He likes computers and his wish is to live forever by having his chain letter be eternally passed on the Internet. This is not some joke. And for those of you who care please send this to as many people as possible so his wish can be granted. (THIS IS NOT A CHAIN LETTER JUST DO SOMETHING NICE FOR ONCE!)

Homework 3 - story 2 Dear Sir, I know this letter will come to Homework 3 - story 2 Dear Sir, I know this letter will come to you as a surprise but suffice it to say that I got your contact from the Nigerian Export Promostion Council who assured me that you are capable and reliable to assist me in this transaction. Before I go into details, I will first introduce myself to you. I am Mr. Joseph Abudulkarim Adisa a son to Minister of Works and Housing of the Federal of Nigeria. Recently, my father was probed, guilty and sentenced to five (5) years imprisonment by the Federal Government, President Olusegun Obasanjo for some misappropriation while he was in office during the last Military regime of Gen. Abudusalam Abubakar. Before his ordeal I successfully get hold of a sum money in one of his duplexes. And since then I have being making arrangement of how to transfer this money which is ($25, 500, 000. 00) Twenty Five, Million five hundred thousand United States dollars to a foreign account. Now, all my father s account is now under government claim except this one that I contacted my friend s who was a Bank Manager to help me lodge the said amount in a bank account in his bank and uncle fortunately for me he agreed to help me if only I can give him 10% of the whole amount. I agree with him on this basis and he has since being making all necessary arrangement to remit the amount to a foreign account which I will provide for him. This is the reason I contacted you to please help me by providing an account where I will deposit this money. I am soliciting you to please help me for this is the only hope I have since my father have been jailed. I also have intention of coming to your country to reside with you immediately after the remittance of the money for my life is uncomfortable here anymore due to what has happened, because the government go to an extent of throwing us out of our house and locked up the house. Please help me I promise to give you 30% of the total amount. If you are interested in helping me please reach me through the above Telephone/Fax number with the Bank Information where I will lodge the money for this is what I urgently need now. …