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One is a directory with independent paths in computer disk space, which stores electronic files in a classified way. "Folder" is a directory name, which we will call "electronic folder" for the time being;
It provides the path address corresponding to the disk space, which can have an extension, but it does not have the function of file extension, nor does it use an extension to identify the format like a file. But it has several types, such as documents, pictures, photo albums, music, music collections and so on. The biggest advantage of using folders is that it provides convenience for file sharing and protection.
In order to store files in order, the operating system organizes files into several directories, also called folders. Folders generally adopt multi-level structure (tree structure).
In this structure, each disk has a root folder which contains several files and folders. Folders can not only contain files, but also lower-level folders. The multi-level folder structure formed by analogy can not only help users to classify and store files with different types and functions, but also facilitate file search, and allow files in different folders to have the same file names.