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Storage space on disc is divided into directories (Windows calls them folders). Every disc, when formatted, has a root directory. When we save work to C:\ we are saving it in the root directory of drive C. You can create directories inside this root directory. For example you could create a directory called docs inside the root directory. To save work in this you would save it in C:\docs A directory created inside another directory is called a subdirectory. You can have subdirectories of subdirectories etc....building a hierarchical structure of directories on the disc.
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The Internet also uses a hierarchical structure of directories on the discs of its servers. For example.. www.myserver.co.uk/members/buster/index.htm refers to a file called index.htm which is stored in the directory buster which is a subdirectory of the directory members stored on the server www.myserver.co.uk.
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File attributes
When a file is saved on backing store, certain properties of the file can be set and stored by the operating system. These are called the file attributes. Commonly used ones are :
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