The material on the World Wide Web is stored in a system of hypertext (hypertext), located in the computer in the Internet. Hypertext is the technique presented information on a page not sequentially. People read freely in pursuit of the relevant traces through the document by using the predefined connection. In a hypertext environment, can point to (highlight) any links of the document and will immediately jump to the other text documents related to it. On the same page information may need many different data types such as TEXT, images or sound. Lead to the appearance of language HTML (HyperText Markup Language). Next up, the user must use a program called a web browser (web browser) to view the Hypertext. This program will receive information (documents) in the address box (address) the request by the user (information in the address box is called a domain name (domain name)), then the program will automatically send information to the server (web server) and shown on the viewer's computer screen. Users can follow the hypertext link (hyperlink) on each web page to connect with other materials or send feedback according to the server in an interactive process. The search operation following the hyperlinks are often called Web browsing. This process allows the user can surf the web to get information. However precision and endorsement of information cannot be guaranteed. A number of current web browsers include Internet Explorer, Mozilla Firefox, Safari, Opera, Avant Browser, Lynx, Konqueror, Google Chrome, Flock, Arachne, Epiphany, K-Meleon and AOL Explorer.
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