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Operating System (OS)

Operating System (OS)
The principle of locality of reference justifies the use of

None of these
cache memory
non reusable
virtual memory
reenterable

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

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

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Operating System (OS)
The computational technique used to compute the disk storage address of individual records is called:

key fielding
dynamic reallocation
hashing
bubble memory
None of these

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Operating System (OS)
Scissoring enables

full data display on full area of screen
no data to be displayed
entire data to be displayed
None of these
a part of data to be displayed

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Operating System (OS)
A bar that inform you the available options in your computer, opened applications, background running applications and can be used to switch between applications quickly is

Status bar
Task bar
Tool bar
Menu bar

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Operating System (OS)
Which of the following is not true about the memory management?

paging suffers from internal fragmentation
segmented memory can be paged
virtual memory is used only in multi-user systems
segmentation suffers from external fragmentation
None of these

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