Since it is not possible to remember each and every numerical value of an IP address, the system of domain names evolved. Domain names are the alphabetic names used to refer to computers on the Internet. A web site address, including a suffix such as .com, .org, .gov or .edu comprises a domain name. The suffix indicates what type of organization is hosting the site. The dominant purpose of the domain name is simply to provide an easy method for remembering another’s electronic address.