The term "disk space" may also be called "disk quota" or "data storage", yet all these words mean the exact same thing - the volume of data that you'll be able to upload to a website hosting account. The full size of everything you have is determined by accumulating the storage space taken by the content in your account, the most obvious being the types of files that you upload. Two more things can often be ignored by many users, though - email messages as well as databases. Sizeable attachments and databases of large script-driven websites can often require a lot of storage space as well. In order to employ a more familiar analogy, the hard disk space of your computer is taken not only by files you download, but also by docs you generate and programs you install. Likewise, various things are counted in the hard disk space that your information needs on a web hosting server, not only the uploads.