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Operating System (OS)

Operating System (OS)
Which of the following instruction steps, would be written within the diamond-shaped box, of a flowchart?

PRINT A
DATA X,4Z
S = B - C
IS A
None of these

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Operating System (OS)
A partitioned data set is most used for

None of these
storing ISAM files
a program or source library
storing program data
storing backup information

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Operating System (OS)
When a computer is first turned on or restarted, a special type of absolute loader called

Boot loader
Relating loader
Bootstrap loader
Compile and go loader

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Operating System (OS)
The working set theory of programming behaviour of processes running within an operating system involves

disk scheduling mechanisms
coalescing holes in memory
None of these
assigning the CPU to processes
the collection of pages that a process accesses

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Operating System (OS)
In which addressing mode the operand is given explicitly in the instruction?

None of these
absolute mode
indirect mode
index mode
immediate mode

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Operating System (OS)
Supervisor state is

never used
entered by programs when they enter the processor
None of these
only allowed to the operating system
required to perform any I/O

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