Glossary

Useful terms and words related to the Internet and related services:

Simply click on the letter that the term you are looking for begins with, and then click on the word when it appears.

DNS (Domain Name System)

DNS is really nothing more than a directory. A DNS operates sort of like a telephone operator. A DNS stores address and name pairs, so that when you request a website by name it can send you directly to the correct address.

DNS plays a major role in e-mail as well as out ability to find websites. If DNS were to fail, you would not be able to find many websites since there is nowhere to look up the address. E-mail would be undeliverable since it has no way of finding its destination. An Internet without DNS would be like a city without the yellow pages.

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