What is the meaning of saving document when creating disk file

#What is the meaning of saving a document when creating a disk file?

The meaning of saving the document when creating a disk file is a write operation from memory to external storage.

Disk file system is a structure that organizes, stores and names files. Commonly used ones are MS-DOS and Windows 3.x. The so-called file system is the structure in the operating system by which files are organized, stored and named. The difference between a disk or partition and the file system it contains is important. Most applications operate on file systems and will not work on different file systems.

Disk files are files in the computer. The stored information is not affected by power outages, and the access speed is much slower than that of memory.

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