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Operating System (OS)

Operating System (OS)
In MS-DOS 5.0, which is the number that acts as a code to uniquely identify the software product?

MS
DOS
MS DOS
5
None of these

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Operating System (OS)
Which of the following file menu option saves document to disk?

Save
Create
All of above
Rename

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Operating System (OS)
What is the name of the operating system which was originally designed by scientists and engineers for use by scientists and engineers?

OS/2
None of these
XENIX
UNIX
MS DOS

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Operating System (OS)
Which of the following is not a video file extension?

.wav
.mov
.avi
.mpeg

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Operating System (OS)
Windows can run

Four applications only
All of above
Two applications only
One application only

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Operating System (OS)
How can you optimize performance of your computer?

Defrag disk
Scan for virus
Delete unused files
All of above

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