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Operating System (OS)

Operating System (OS)
What do you mean by dialog box?

Set of controls
Interactive message box
All of these
Group of options

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Operating System (OS)
Which one is not a system tool?

Virus scanning
All of the listed here
Backup
Disk defragment

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Operating System (OS)
Which one of the following is not a layer of operating system?

Kernel
Critical selection
Application program
Shell

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Operating System (OS)
If the number of bits in a virtual address of a program is 16 and the page size is 0.5 K bytes, the number of pages in the virtual address space is

32
None of these
128
16
64

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Operating System (OS)
The operating system of a computer serves as a software interface between the user and

peripheral
None of these
screen
hardware
memory

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Operating System (OS)
Which of the following is not a multitasking operating system ?

Windows
Linux
DOS
Win NT

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