What is The introduction Of internet

Internet

The internet is a global system of interconnected computer networks that enables the users to share information and various resources with each other. It uses common communication standards and interfaces to provide the physical backbone for a number of interesting applications.

Advantages of the Internet

The internet is a boon to the world. Almost every aspect of our life is touched by the internet Interestingly, the internet provides 24×7 services Some of the common uses of the internet are as follows:

  • Education
  • Media and Entertainment
  • Business
  • E-mail
  • E-Commerce
  • Social Networking
  • Health and Fitness

Disadvantages of the Internet

The internet has become an important and integral part of our personal and professional life today However, it is a tool, which must be handled with caution as its misuse can be very harmful. Some of the threats of the internet are as follows:

  • Virus Threat
  • Cyber Crime
  • Cyber Terrorism
  • Pornography
  • Spamming
  • Time wastage

World Wide Web

The WWW (World Wide Web) or simply web is a means of accessing information over the internet. It contains millions of documents or ‘bunch of pages’ called Web Pages. Each page contains text, graphics, video, audio, and is linked to other web pages via hyperlink. The web uses the HTTP (Hyper Text Transfer Protocol) for the transmission of these documents over the internet.

Web Browser

Web browser is a software that is used to view websites. It is an interface between a user and the World Wide Web. A web browser can have a graphical user interface, eg. Microsoft Edge, Mozilla Firefox, Google Chrome, Opera, or can be text based, e g, Lynx.

The user can navigate files, folders and websites using hyperlinks Multiple tabs and windows of the same browser can be opened. The features and facilities offered by a web browser include downloads, bookmarks, and password management .It also offers functions, like spell checking, search engine tool bars, tabbed browsing, advertisement filtering, HTML access keys, and pop-up blocking.

The most popular web browsers are:- Safari Mozilla Firefox ,Microsoft Edge, OPERA,Google Chrome etc.

Website

A website is a collection of related web pages containing images, videos, or other digital media set under the same domain name. These pages are written in HTML (Hypertext Markup Language) and can be accessed via the internet. A website is hosted on a web server on the World Wide Web. Each site is owned and managed by an individual, a company, or an organisation. Components of a website are:

  • Web Host
  • Content Management System (CMS)
  • Domain Name
  • Site Files

Web Page

Web page is a digital page, which may contain text, hyperlink, videos, audios, images, tables, etc. It is commonly written by using HTML (Hypertext markup language) and is stored on a web server .Each web page is identified by a unique web address called URL (Uniform Resource Locator). Basic elements of a web page are:

  • The Header area
  • Content Area
  • The Navigation Menu
  • Footer
  • Page Title

There are two types of web pages:

  • Static Web Pages:- The contents of static web pages remain stationary irrespective of the number of times it is viewed. Such web pages are suitable for the contents that never or rarely need to be updated.
  • Dynamic Web Pages:- The content of a dynamic web page is generated for the user at the time one request for the page .The document you view exists only for you at that moment, if viewed by someone else at the same time, or by you at a slightly different time, you could get something different.

Difference between Web Page and Website

A website is a collection of web pages, connected by links. It contains information on a subject, whereas a web page is a single page of content on a website, which contains more specific information. You can compare a website with a book and a web page with the particular page of that book.

Protocol

It is a standard set of rules used for communicating or transferring data on the internet. These rules include what type of data may be transmitted, what commands are used to send and receive data, and how data transfers are confirmed.

HTTP

Hpertext Transfer Protocol is an application layer protocol for transmitting hypermedia documents, such as HTML. It is designed to establish communication between web browsers and web servers.

Home Page

It is the first web page of a website .It is the main page where visitors can find hyperlinks to other pages on the site.

Uniform Resource Locator (URL)

The Uniform Resource Locator denotes the global address of the web documents and the web resource Internet communication is the main reason for identifying a resource on the web. The URL has two parts

  • Protocol Identifier:- It tells the internet browser what protocol needs to be followed to access the address.
  • Resource Name:- It specifies the complete address of the resource on the internet.

Example:- http://www.mygov.in

In this example http: is Protocol and www.mygov.in is Resource Name.

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