For the amateurs, they may only know that saving a data is only done in hard drives of their computers. If they need those data, they can take them but if they want to delete them, they can do it directly. Nowadays, technology creates something which is called online storage. This kind of invention is used to save data in the internet. This is surely very useful for some people who may have lack of spaces in their hard drives. The technology is called also as cloud computing. The concept is you put your data in some places which are represented as cloud.