The related information when placed is an organized form makes a database. In simple words, an organized collection of related information is known as database. The organization of data/information is necessary because unorganized information has no meaning. There are so many examples of organized information, more precisely and the most common are, the dictionary, the telephone directory, student record register, your own address book and many more. In each of these the data is stored in some particular order i.e. in an organized form.