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

Menu bar
Tool bar
Task bar
Status bar

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Operating System (OS)
Which of the following statement is true.

None of these
Thrashing is a natural consequence of virtual memory systems.
Seek analysis is used for analysing control-unit busy problems.
All of these
The LRU algorithm pages out pages that have been used recently

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