ABSTRACT
In computer systems a ‘file’ is a collection of data in the same computer format. For instance you can have a ‘.txt’ file containing text or a ‘.jpg’ file containing a picture. (Some computer formats can contain both text and graphics but these can usually only be opened and viewed properly using the computer program that created them. Microsoft Word’s ‘.doc’ format is an example.)
To avoid confusion we will use the term ‘folder’ when we are talking about containers for documents, and ‘file’ for individual documents.
