A database, in its simplest form, is an organizer that helps us to manage and access large amounts of information quickly and efficiently. In this tutorial, you'll learn some basics about databases. To examine a topic, click on one of the links below. When you finish with a section, return to this Table of Contents and continue with the next link. A database is an information organizer.
Common databases includes address books, telephone books, and the index in the back of a textbook.
These databases contain subject material arranged in an order which helps us in find information that we need quickly and efficiently. The library card catalog is another example of a database. Before computerized systems, the card catalog contained up to three cards for each book in the library. Books were indexed by title, subject, and author. With computers however, the library has only one entry for each book, saving them time, energy, and money.