What is a domain name
Computers connected to the Internet have unique numerical addresses so that electronic information is delivered to the right place. The domain name system (DNS) translates the numerical addresses of computers into more user-friendly names. The resulting domain names are easier to remember and help people to find information on the Internet.
Domain names are used to identify particular web pages. For example, in the web site address "http://www.tznic.or.tz" the domain name is tznic.or.tz