Functions of the World Wide Web

The WWW is based around three core standards: HTTP as the protocol that the browser can request information from the web server. HTML as a document markup language that defines how the information is structured and how the documents are linked (hyperlinks).

URLs as a unique address or name of a resource (e.g. a web page), which is used in hyperlinks. The following standards were added later: Cascading Style Sheets (CSS). Laying down the appearance of the elements of a Web page, with separated presentation from content.

JavaScript is a scripting language of instruction for the browser that can be embedded with the programs (scripts). Web pages using the Document Object Model (DOM) can be dynamically changed. Scripts are usually small programs; but can also take on as a client manager with the help of the DOM to have complete control over the display.

A Microsoft-developed version of JavaScript called JScript. Both languages are similar, but not compatible with each other. This incompatibility of the two languages is a crucial part of the so-called browser war.

Hypertext Transfer Protocol Secure (HTTPS) is a development of HTTP, pushed in the SSL protocol between TCP and HTTP, and is completely encoded in the sequence of data transfer.

The World Wide Web Consortium (or W3C), which today is headed by the inventor of the WWW, Tim Berners-Lee, this developed the HTML and CSS standards, different standards are from the Internet Engineering Task Force, the ECMA or manufacturers such as Sun Microsystems.

The WWW has been and is complemented by other technologies. Very early images were used to illustrate, GIF, PNG and JPEG prevail.

Moreover, almost all file types can be embedded or linked with HTML, and can represent the browser by adding modules. This can be multimedia content from animation to music videos, or constitute an entire application, such as insurance or navigation computer interfaces.

In addition, Java applets allow the embedding of programs which run on the computer of a Web user. Other popular formats are PDF documents for viewing documents or Flash for interactive content and animations.