what king of data can be stored in the cloud?

You can store any kind of data on cloud including storage. You can store your database data like MS SQL, MySQL, Access or any other. Apart from this you can also store your data like document in the form of word, excel, ppt, xml, text or any other formatted data. Even you can store unformatted data on cloud. You can store, manage, access, manipulate, arrange, share or edit your data on cloud as per your requirement. Even you can store your personal data like email backup, phone backup, images, song, videos etc on cloud. And the advantages of cloud computing for companies are that they do not need to install server on their own physical location, they do not need to install any software or database management system.