networking curriculum
support CD for senior
secondary studies

Topics
. Home
. Networking History
. Why network?
. OSI model
. Connecting up
. Protocols
. Technology
. Network types
. Topologies
. Issues
. Design factors
. Economic effects
. www links
. Site map

networking > protocols > http

HTTP

The concept of the web browser tackled three major problems. The distribution of information was rendered in an immediately readable format with flexible formatting and enhancements, the location of files were linkable and hidden from users, transcending the need for many users to understand the actual network system, and finally visual information in the form of graphics and photographs were rendered immediately. The solutions were again not immediately discovered simultaneously but incorporated in a series of improvements.

The Hyper-Text Markup Language is a common first scripting "language" for aficionados of the Internet. The HTML files drive the HTTP protocol. The concept began with a versatile set of statements that controlled the presentation of information on the screen. However the statements were designed for flexible interpretation by clients' browsers and as a result information viewed across a HTTP connection will always to be difficult to predict 100%. The format of the web browser has become so popular that many operating systems have blurred the boundaries between the presentation of local filing system data and remote Internet data.

The popularity of the basic web page structure and delivery has also inspired many add-on features such as CGI, Java Applets, JavaScript, Flash Programs, Active Server Pages, Java Server Pages and many others. In fact some of the systems developed, such as PHP are almost a parallel standard where the powers of the attached or embedded processors in the HTML are much, much more important than the original HTML. As usual the inclusion of these extras to the basic HTML opens up the possibility of security weaknesses.

Similarly the original HTML statements have been greatly improved and enlarged in their scope. One of the most import developments is the use of systems such as Cascading Style Sheets. Style Sheets were developed to allow editing the formatting of many HTML pages simultaneously. This way large sites could have colour or font changes applied consistently across the site. Systems like this are required if large sites are to be created with high uniform quality presentation, and still allow convenient updating and alterations.

worksheets
. history
. why network
. osi model
. connecting
. protocols
. technology
. topologies (tla)
. issues
. network types
. design
. economics
. economics (cs)
   - solutions -

quizzes
. why network
. osi model
. connecting
. protocols
. technology
. topology
. issues
. network types
. design
. economics

| Home | History | Why Network? | OSI Model | Connecting up | Protocols | Technology | Networks Types | Topologies | Issues | Design Factors | Economic effects |
:: copyright | credits | sitemap ::

© 2003 Victorian Information Technology Teachers Association
http://www.vitta.org.au/