Web Fundamentals Training Series All About the Web

Provided by Central Web Services What We’ll Be Covering… What the Web Is (and Isn’t) The World Wide Web: A Brief History How the Web Works Internet Components Internet Transmission Transmission Optimization How the Web Enhances the Internet What’s to Come

Provided by Central Web Services What the Web Is (and Isn’t) The World Wide Web IS… A global information medium which users can both read and write to via computers The World Wide Web IS NOT… The Internet – The Web is a service on the Internet, like is – The Internet, under different names and forms, has been around significantly longer than the WWW (since the early 1970’s)

Provided by Central Web Services The World Wide Web: A Brief History Originated with and developed by Tim Berners-Lee in 1980’s Originally conceived to link electronic documents together via hypertexthypertext Aug. 1991: World Wide Web publicly released Typically used by university based science departments Aug. 1994: Commercialization of the Web begins First business on Web was Pizza Hut (1994) By 1998, e-business was fairly commonplace Sept. 1994: World Wide Web Consortium (W3C) founded at MIT Now the governing body of the World Wide Web Develops standards for web technology and practices Kept WWW code royalty free and publicly accessible

Provided by Central Web Services The overall concept is simple View files via a browser Click on hyperlinks to move to the area of interest View and/or download the information The technology behind the concept is quite complex Electronics Technology – Computing Devices – Cell Phones Network (Internet) Technology – Wired – Wireless Software Technology – Databases – Games How the Web Works

Provided by Central Web Services Internet Components Many different components are required for the Internet to work and, in turn, provide users with the Web service Additionally, several different transmission methods are now available, adding to the complexity Dial-Up / DSL Broadband Wireless – Satellite – Wi-Fi / WiMAX But, it all boils down to requesting and receiving information

Provided by Central Web Services The Client / Server Relationship Client: some form of user, human or automated, who makes a request for some type of electronic information or resource. Server: stores electronic information in the form of files and “serves” a response to requesting clients

Provided by Central Web Services Internet Transmission Requires a complicated combination of hardware, software, and industry protocols In brief, each Internet transaction that occurs such as: a hyperlink that is clicked on, , Instant Message, or a file that is downloaded, goes through the following process 1.Request / message is broken down into small, electronic packets 2.Packets are numbered by the requestor’s computer 3.Packets are routed through the Internet to the appropriate address 4.Receiver’s computer acknowledges the receipt of each packet 5.Packets are reassembled by receiver’s computer 6.Receiver responds, as necessary 7.Process repeats

Provided by Central Web Services Transmission Optimization Literally, countless trillions of packets are flying through transmission paths all over the world at any given second The bigger the file, the slower the transmission Some multimedia files can be very resource dependent. These files include the following: Still Images Audio Animations & Video In terms of web publications, it’s always a best practice to use the least amount of resources possible. In doing so, you not only better serve your audience, but also make less demands on the system as a whole.

Provided by Central Web Services How the Web Enhances the Internet Prior to the Web and the development of Mosaic, the first web browser, all Internet transmissions were console based and text only. No pictures. No sound This has definitely changed Web pages created to today’s expectations and standards have benefits, but also drawbacks + Visually and audibly appealing + User friendly -High demand on resources -Many “power” users don’t understand supporting system issues Console View Mosaic (1993) Firefox (2008)

Provided by Central Web Services What’s to Come Multimedia is a collection of different media forms which includes various combinations of the following: Text Still Images Audio Video / Animation The tutorial series that follows this presentation is not meant to be comprehensive, but rather a starting point to help a user make the most out of available resources while creating a functional, appealing web page.

Provided by Central Web Services Conclusion This completes the Web Fundamentals tutorial. For additional tutorials, please visit WebTrain, the CWS web publishing training site, at: To submit a Help Ticket to Central Web Services go to: Other OSU resources for web and computer help: