Blue Corporate Executive File Folder

File: A file is the common storage unit in a computer, and all programs and data are "written" into a file and "read" from a file. Folder: A folder holds one or more files, and a folder can be empty until it is filled. A folder can also contain other folders, and there can be many levels of folders within folders.A file folder (or simply folder) is a kind of folder that holds papers together for organization and protection. File folders usually consist of a sheet of heavy paper stock or other thin, but stiff, material which is folded in half, and are used to keep paper documents.The types of files recognized by the system are either regular, directory, or special. However, the operating system uses many variations of these basic types. All file types recognized by the system fall into one of these categories.