Beginners Lighting Kit

Introduction to Linear vs. hypertext documents

first thing we consider when designing a document or set of Web pages is that it is a hypertext document and not of a linear document, like maybe a book.

When writing a book, the author arranges the chapters sequentially to match the exposure that he intends to perform. While reading the book can go directly to a chapter in particular, it has been written to be read out line.

On the other hand, when developing a Web document we must consider that it may happen that a user visits a page or set of pages in particular directly without reading the rest of the document.

In a hypertext document find links within the page that will allow us to go directly to any part of the document.

Here's a chart to see the structure of a document designed for the Web:

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World Wide Web

Undoubtedly the great expansion that has suffered in recent years, the Internet is due to the emergence of "web pages."

Words World Wide Web or simply Web, refer to the abstract set of information that can be found in cyberspace.

The World Wide Web creator Tim Bernes-Lee is that in the year of 1989 began to develop a simple way to present multimedia information across the network. The foundation of the Internet is a set of protocols that allow information sharing across the Internet.

The appearance of the first Web browser or reader, was developed by the National Center for Supercomputing (NCSA for its acronym in English) in 1992 and this marked the beginning of the popularization of the World Wide Web.

The protocol used by Web servers and clients is called HTTP (HyperText Transmission Protocol). One reason for the success of the World Wide Web lies in the fact that the HTTP protocol is capable of handling various Internet protocols such as:

• FTP Gopher WAIS

Most web servers are based on UNIX, but now technology-based servers are Windows and Macintosh gradually gaining a greater market share.

In contrast, the dominant operating system for web browsers is the Windows, Internet Explorer remains the most used, followed closely by Firefox and Opera.