The World-Wide Web Think of it as a system of millions of computers linked together across the globe. Each computer stores electronic files, known as web pages, that you can access from your computer. The Web allows us to communicate in a rich way, by displaying text, full color graphics, photos, sounds and even video. The Web began in 1992 at CERN , the European Laboratory for Particle Physics, as a means of distributing and annotating scientific research. Technical standards are now defined by the World-Wide Web Consortium .
Web documents are ordinary text files that can be created with any word processing program.
They include tags that control their appearance. Tags can also define a word or phrase as a link . Simple and reliable, HTTP is often a more cost-effective solution than traditional paper publishing. A URL is the Internet address for a web document or other file. Later in this tutorial, URLs are discussed in more detail.