disk op·er·at·ing sys·tem
/disk ˈäpəˌrādiNG ˈsistim,ˈsistəm/
noun
see DOS.
Disk operating system
A disk operating system is a computer operating system that resides on and can use a disk storage device, such as a floppy disk, hard disk drive, or optical disc. Wikipedia
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A disk operating system provides a file system for organizing, reading, and writing files on the storage disk, and a means for loading and running programs ...
Oct 26, 2021 · What is a disk operating system? ... A disk operating system (DOS) is a type of operating system that runs from a disk drive rather than a paper- ...
It is a text-based interface that allows users to directly interact with the operating system using command lines rather than a graphical user interface (GUI).