The Internet consists of many computer networks spread throughout the world. The exact number of computers connected to the internet is still unknown. However, it is certain thathis number reached several million.
The Internet is a decentralized system that does not have a single regulatory authority. Various organizations are dedicated to the development of technical aspects related to these networks and are mandated to create standards for creating applications in them. However, no regulatory body asserts control over the network as a whole. The underlying infrastructure of data transmission on the Internet, referred to as the backbone of the Internet, is under the ownership of private companies.
The method of communication among all computer systems on the Internet involves the use of a series of Transmission Control Protocols/Internet Protocols known by the abbreviation TCP/IP. The client/server architecture is used by computers on the Internet. This indicates that the remote server equipment is providing files and assistance to the user’s closest client equipment. Installation of software on client computers can facilitate the utilization of contemporary access technologies.
The Internet provides a wide range of services to its users which include electronic mail, file transfer, abundant information resources, interest group participation, interactive collaboration, multimedia displays, real-time broadcasting, shopping, breaking news, and various other offerings.
The basic components of the internet consist of a variety of access protocols. Many protocols incorporate applications that facilitate the process of searching and retrieving content available through those protocols.
WORLD WIDE WEB
The World Wide Web (abbreviated Web or WWW) is an Internet server system that supports hypertext to access various Internet protocols through a single interface. Almost all types of protocols available on the Internet can be accessed on the Web. This includes email, FTP, Telnet, and Usenet news. In addition, the World Wide Web has its protocol: HyperText Transfer Protocol, or HTTP.
The World Wide Web provides a single interface to access all these protocols. It provides a comfortable and user-friendly environment. There is no longer a need to be familiar with these protocols in a separate command-level environment. The web unites all these protocols in one system. Because of these features, and because of the Web’s ability to work with multimedia and advanced programming languages, the Web is the fastest-growing component of the Internet.
The web-primarily relies on hypertext as a means of retrieving information. Hypertext is a document that contains words linked to another document. These words are called links and can be selected by the user. A single hypertext document can contain links to many documents. In the context of the Web, words or graphics can serve as links to documents, images, videos, and other sounds. Links may or may not follow a logical path, as each link is programmed by the creator of the source document. Overall, the Web contains complex virtual networks that connect large amounts of documents, graphics, video, and sound.
Hypertext for the web is created by writing documents using a language called HyperText Markup Language, or HTML. With HTML, tags are placed within the text to control document formatting, visual features such as font size, italics and bold, and hypertext link generation. Graphics and multimedia can also be included in HTML documents. HTML is an ever-evolving language, with new tags added as each version of the language is developed and released. The World Wide Web (W3C) consortium, led by Web founder Tim Berners-Lee, coordinated efforts to standardize HTML. The W3C now refers to this language as XHTML and considers it a standard application of the XML language.
The World Wide Web consists of files, called pages or home pages, that contain links to documents and resources across the Internet.
The Web offers a variety of experiences, including multimedia presentations, real-time collaboration, interactive pages, radio and television broadcasts, and automatic “pushing” of information to client computers. Programming languages such as Java, JavaScript, Visual Basic, Cold Fusion, and XML extend the capabilities of the Web. More and more information on the Web is presented dynamically from content stored in databases. Therefore, the Web is not a fixed entity, but one that is constantly evolving and changing.