INTERNET FEATURES.

INTRODUCTION• The Internet, Information Super Highway provides

access to communication services and information resources to millions of users around the global. The Internet services include direct communication (Email, Chat), Online conference (Usenet, Chat, Email discussion), World information resources (World Wise Web) Gopher, Archie, Newsgroup, Bulletin Board, and File Transfer Protocol (FTP) and many other tools and resources. A brief detail of both the features and tools are explained in the presentation.

WORLD WIDE WEB (WWW)• The Web (World Wide Web) consists of information organized into

Web pages containing text and graphic images.• It contains hypertext links, or highlighted keywords and images

that lead to related information.• A collection of linked Web pages that has a common theme or

focus is called a Web site.• The main page that all of the pages on a particular Web site are

organized around and link back to is called the site’s home page.

HYPERTEXT•Hypertext is a method of preparing and publishing text

in which users can choose their own paths through material. The text is broken into small units such as single pages called Nodes. Hyperlink are embedded into the text. Typically user has a graphical user interface (GUI) on which he clicks a button to navigate through different pages.

HYPERLINK•In computing, a hyperlink is a reference to data that the reader can directly follow either by clicking or by hovering. A hyperlink points to a whole document or to a specific element within a document. Hypertext is text with hyperlinks.

WEB BROWSER• A web browser (commonly referred to as a browser) is a software application

for retrieving, presenting, and traversing information resources on the World Wide Web. An information resource is identified by a Uniform Resource Identifier (URI/URL) and may be a web page, image, video or other piece of content. Hyperlinks present in resources enable users easily to navigate their browsers to related resources.• Although browsers are primarily intended to use the World Wide Web, they

can also be used to access information provided by web servers in private networks or files in file systems.• The major web browsers are Firefox, Internet Explorer/Microsoft Edge,Google

Chrome, Opera, and Safari.

WEB PAGE• A web page (or webpage) is a web document that is

suitable for the World Wide Web and the web browser. A web browser displays a web page on a monitor or mobile device. The web page is what displays, but the term also refers to a computer file, usually written in HTML or comparable markup language. Web browsers coordinate the various web resource elements for the written web page, such as style sheets, scripts, and images, to present the web page.

WEBSITE • A website, also written as web site, is a collection of related

web pages, including multimedia content, typically identified with a common domain name, and published on at least one web server. A web site may be accessible via a public Internet Protocol (IP) network, such as the Internet, or a private local area network (LAN), by referencing a uniform resource locator (URL) that identifies the site. All publicly accessible websites collectively constitute the World Wide Web, while private websites are typically a part of an intranet.Web pages, which are the building blocks of websites, are documents, typically composed in plain text interspersed with formatting instructions of Hypertext Markup Language (HTML, XHTML).

HTML ( HYPERTEXT MARKUP LANGUAGE ) • The public files on the web servers are ordinary text files,

much like the files used by word-processing software.• To allow Web browser software to read them, the text must be

formatted according to a generally accepted standard.• The standard used on the web is Hypertext markup language

(HTML).• HTML uses codes, or tags, to tell the Web browser software

how to display the text contained in the document.

HTTP ( HYPERTEXT TRANSFER PROTOCOL)

• The transfer protocol is the set of rules that the computers use to move files from one computer to another on the Internet.• The most common transfer protocol used on the Internet is

the Hypertext Transfer Protocol (HTTP).• Two other protocols that you can use on the Internet are the

File Transfer Protocol (FTP) and the Telnet Protocol

WEB SERVER • A web server is an information technology that processes requests via HTTP, the basic

network protocol used to distribute information on the World Wide Web. The term can refer either to the entire computer system, an appliance, or sCommon features[edit]• Virtual hosting to serve many web sites using one IP address• Large file support to be able to serve files whose size is greater than 2 GB on 32 bit

OS• Bandwidth throttling to limit the speed of responses in order to not saturate the

network and to be able to serve more clients• Server-side scripting to generate dynamic web pages, still keeping web server and

website implementations separate from each interspecifically to the software that accepts and supervises the HTTP requests.

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