When you spend time on the Internet, whether you are browsing or sending emails, you are using the hidden Domain Name System (DNS). The DNS is a unique naming system, which works like a database that is used for computer systems, services and other resources that are connected with the Internet. The DNS system translates domain names, which can easily be remembered by humans, to a numerical identity, that can be used by computers.
Every time you use a domain name you are accessing the Internet’s domain name server. DNS is often associated with a phone book; a human remembers the name and the phone book, similar to the DNS, provides the number or Internet Protocol (IP) address. For example www.trellian.com translates to 216.240.187.4.
