A domain name is an easy to remember name that refers or points to an IP address where your web services (email, website etc) reside. An IP address is a unique address written in dotted decimals (such as 196.7.164.2) that computers use to determine what website to display.
Imagine that an IP Address is a phone number and the domain name is “speed dial” listing in a cell phone. You do not need to know the person’s phone number to contact the person. All you need is the name of the person in your speed dial listing.
Domain names and IP addresses work the same way. You do not need to know the IP address of a particular website. You simply need to know the domain name. When you type in a domain name in a web browser, you are telling the browser to retrieve the website that is associated with a particular IP address.
PDF 
