ANSWER I: The e-mail address generally has two parts, user id and the domain name. The @ (at) symbol is used to separate the user id from the domain name in the e-mail address. The e-mail address is in the form,
[email protected] (example:
[email protected]). The domain name is usually the name of the service provider and it cannot be changed. The user name can be changed by creating a new e-mail address. Some websites like www.myownemail.com allow the users to have a domain name of their choice like
[email protected] or
[email protected] or
[email protected] or any other name on earth. The significance of the @ symbol is that it separates the user id from the domain name.
ANSWER II: Email addresses are basically identifiers of users and are unique. They are usually composed of the following parts, namely:
[email protected]. Example:
[email protected]. These addresses can be compared to the addresses of the houses in a huge colony. Examples are Hotmail, Yahoo, Sify and AOL.The domains are in turn classified as sub-domains for the sake of clarity in large organisations. Some of the top-level domains (TLD's) are com, .edu, .net, .gov. The `@' symbol indicates that the user can be reached on the Internet by giving the email address (also called the User's Uniform Resource Locator (URL)).