What is Internet and E-mail

Internet

             The Internet is a global system of interconnected computer networks that use the standard Internet protocol suite (often called TCP/IP, although not all applications use TCP) to serve billions of users worldwide. It is a network of networks that consists of millions of private, public, academic, business, and government networks, of local to global scope, that are linked by a broad array of electronic, wireless and optical networking technologies. The Internet carries an extensive range of information resources and services, such as the inter-linked hypertext documents of the World Wide Web (WWW) and the infrastructure to support email. 

The internet in simple terms is a network of the interlinked computer networking worldwide, which is accessible to the general public. These interconnected computers work by transmitting data through a special type of packet switching which is known as the IP or the internet protocol.

Internet is such a huge network of several different interlinked networks relating to the business, government, academic, and even smaller domestic networks, therefore internet is known as the network of all the other networks. These networks enable the internet to be used for various important functions which include the several means of communications like the file transfer, the online chat and even the sharing of the documents and web sites on the WWW, or the World Wide Web.


Email 

      Electronic mail, also known as email or e-mail, is a method of exchanging digital messages from an author to one or more recipients. Modern email operates across the Internet or other computer networks. Some early email systems required that the author and the recipient both be online at the same time, in common with instant messaging. Today's email systems are based on a store-and-forward model. Email servers accept, forward, deliver and store messages. Neither the users nor their computers are required to be online simultaneously; they need connect only briefly, typically to an email server, for as long as it takes to send or receive messages. 

The Email (also known as e-mail, eMail, e-post) refers to the transmission of messages over communication networks. As an electronic method of messaging, it is fast and convenient, and includes all the steps of the delivery of a message to a recipient - writing, sending, receiving and saving. A received message can be handled in a variety of ways - it can be stored in a text file, forwarded to other users or just deleted.

The contents of an email message can be some lines of keyboard typed text or files stored on a computer, or both. The Email is the main method of business communication worldwide due to its flexibility and reliability. One of its best features is that a message can be sent to several users simultaneously.
 

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