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A Non-Directory File System
[Category : - SOFTWARES]
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The most fundamental reason for the directory structure is that files based on the same filename cannot co-exist in one directory, otherwise, the computer would not be able to distinguish these files when addressing them by filename. Other than that, the directory structure's biggest advantage is categorizing the files. But, if we consider the scenario in life, a directory is equivalent to a box or a shelf, in the case of having two books with the same title, that is, two books with the same name, can only one book be put in a box? Books with the same title are placed together on a shelf in a library, when has it ever been stipulated that the books placed on a shelf cannot have the same title (name)?
No, it was not a must in a file system, there was an operating system called CP/M that had no directory in its file system, it was popular in the 70s to 80s. After that, all file systems were built based on one directory structure which is also the only structure type that exists in a file system (for example, all files in C disk are under the root directory of C or its subdirectories, so they’re all in one directory), and this situation has lasted for about 50 years, all applications and database software developed base on it, until now nearly no new space to develop anymore, what if the only one directory structure being replaced by multiple graph structures which have many kinds of file structures including directory? Would this open a new window for the file system and operating system development?
The Authorized patent "A File System" (in China) presents a non-directory file system scheme that allows files with the same filename to coexist in a directory,
The other related patent titled "A Method for Building File System Graph Structures Using Tags" is still in application in China. This one makes files easily classified into one or more multi-type structures and can be used in either a directory file system or a non-directory file system.
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Patent publications:
CN 111274201
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