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Delhi Police Constable Exam Model Paper 8
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© examsnet.com
Question : 91
Total: 100
DOS stands for:
Distance Operating System
Direct Operating System
Disk Operating System
Digital Operating System
Validate
Solution:
The correct answer is option 3 i.e.,
Disk Operating System
DOS stands for
Disk Operating System.
It is an
operating system
that runs from a hard-disk drive.
The term can also refer to a particular family of disk operating systems, most commonly
MS-DOS.
DOS primarily consists of
Microsoft's MS-DOS
and a rebranded version under the name of
IBM PC DOS,
both of which were introduced in
1981.
Some of the later compatible systems from other manufacturers include
DR DOS (1988), ROM DOS (1989), Free DOS (1998).
Windows 95
was bundled as a standalone operating system that did not require a separate DOS license.
With
DOS no longer
required to use Windows, the majority of users stopped using it directly.
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