The difference between logical structure and physical structure of files

The difference between the logical structure and the physical structure of a file:

Logical structure: refers to the form in which a file appears in front of the user. Physical structure: refers to the storage form of files on file storage.

There are two forms of logical structure:

①Record file (with structured file).

②Character stream file (without structured file), also It is called streaming file.

Physical structure: The so-called physical structure of the file system refers to the arrangement shape of the hard disk magnetic particles when the data is stored on the hard disk.

The form of the physical structure:

①Continuous file structure

②Concatenated file structure

③Index file structure

④Hash file structure.

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