Our Lady of the Rosary College S3 Computer Literacy

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Presentation transcript:

Our Lady of the Rosary College 2007-2008 S3 Computer Literacy Lesson 9 Web Browser Web-based Software Mr. Ku Heung Chin

Internet and WWW Internet (1970s) WWW – World Wide Web (1990s) a collection of interconnected computer networks i.e. network of networks WWW – World Wide Web (1990s) WWW is one of the services accessible using the Internet. Internet WWW Email File Sharing

WWW Basis How does it work? HyperText Transfer Protocol (HTTP). HyperText Markup Language (HTML). Uniform Resource Locator (URL) How does it work?

How WWW works? World Wide Web <HTML> <HTML> URL: http://www.google.com <HTML> <head><title> Google</title> </head> …….. Google’s web Server Yahoo’s web Server OLR’s web Server HTTP Request HTTP Response <HTML> <head><title> Google</title> </head> ……..

Web-based Software can be accessed using a Web browser only. No need to installing any application software other than a Web browser. Eamples: Webmail Google Docs http://docs.google.com/ Google Maps http://maps.google.com/ Google Translate http://www.google.com/translate