The Domain Name is a unique name that represents each computer on the Internet . (Some machines do have more than one Domain Name. The DNS converts the Domain Name requested by an Internet User into an IP Address . The location of the machine with this IP address is known the information being requested can then be found. "www.yahoo.com" is an example of a Domain Name. The "com" indicates that Yahoo is a commercial Organisation. Other codes include:-
ac - Educational institution
co - Commercial organisation
com - Commercial organisation
edu - Educational institution
gov - Non military government organisations
int - International Organisations
mil - Military government organisations
net - Networks
org - non profit organisation