Domain name is the name used in the computer. To search in the system. Domain Name System identifies the IP address of that domain name as the name the user enumerates for the user to visit his or her site. Sometimes, we may use a "website address". "Web Address" instead.
Domain name or domain name is a name that is easy to remember. Because IP addresses are hard to remember. And when the site owner changed the IP address. Users do not need to recognize or remember new IP addresses. Still using the same domain name anyway. Domain name naming convention Characters used in domain naming include English letters, numbers, and "-" (hyphens), separated by "." (Periods) are 1 to 63 characters long, AZ uppercase letters or alphabets. small Same as
Reference: http://en.wikipedia.org/wiki/
When domain name is set to DNS hosting (and hosting must be the domain name that points to it), you will be able to access the domain name. If no domain You will also need to enter the IP address. Of web hosting instead of http://1.2.146.200/~username/ etc.