A DOS, or disk operating system, is an operating system that runs from a disk drive. The term can also refer to a particular family of disk operating systems, most commonly MS-DOS, an acronym for Microsoft DOS. ... DOS is also used to describe several similar command-line disk operating systems.

Is DOS An example of operating system?

Microsoft Disk Operating System, MS-DOS is a non-graphical command line operating system derived from 86-DOS that was created for IBM compatible computers. MS-DOS is one of the oldest and widely used operating system.

Is MS-DOS not an operating system?

MS-DOS (/ˌɛmˌɛsˈdɒs/ em-es-DOSS; acronym for Microsoft Disk Operating System, also known as Microsoft DOS) is an operating system for x86-based personal computers mostly developed by Microsoft. ... IBM licensed and re-released it in 1981 as PC DOS 1.0 for use in its PCs.