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Operating System (OS)

Operating System (OS)
The memory resident portion of operating system is called the

API
CMOS
Registry
Kernel

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Operating System (OS)
In which of the storage placement strategies a program is placed in the largest available hole in the main memory?

None of these
first fit
best fit
buddy
worst fit

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Operating System (OS)
Which of the following scheduling objectives should be applied to the following: the system should admit jobs to create a mix that will keep most devices busy

to obey priorities
to balance resource utilization
to be predictable
to be fair
None of these

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Operating System (OS)
In which addressing mode, the address of the location of the operand is given explicitly as a part of the instruction.

immediate mode
index mode
absolute mode
None of these
modulus mode

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Operating System (OS)
UNIX operating system is a(n)

Time sharing operating system
All of the listed here
Multi tasking operating system
Multi user operating system

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Operating System (OS)
....... is the layer of a computer system between the hardware and the user program

System environment
Operating environment
Operating system
None of these

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