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The Domain Name System (DNS) helps users to find their way around the Internet. Every computer on the Internet has a unique address, called the "IP address". But it is hard to remember everyone's IP address. The DNS makes it easier by allowing a familiar string of letters (the "domain name") to be used instead of the IP address. So instead of typing 220.127.116.11, you can type www.indg.in, which is easier to remember. Domain names have the format: hostname.subdomain.top-level-domain. Eg. www.indg.gov.in. The third set of letters of an address are intended to indicate the type of organization hosting the computer. Domain name &Meaning COM -Commercial organizations GOV- Government institutions NET- Major Network support centers ORG -Organizations other than those above Two letter codes - The final two letter codes indicate the country of origin. Eg:.'in' is used for India