Disk Operating System is a computer OS that provides a file system for operations with files on the storage disk. It has built-in utilities for working with files on disk (copying, creating, editing, deleting and moving). And the built-in interpreter of the Basic language.

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First released 1980
Developed by IBM
Open-source No
Used by BM, Microsoft, MSX

Interesting facts

In common with other versions of DOS, MS-DOS has limited functionality, offering a command-line interface, management of peripheral devices, management of files, and no multitasking. The initial hardware restriction of the IBM PC to a total of 640 Kbytes of memory is embedded in MS-DOS.

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