Operating System (OS)
Which of the following software types is used to simplify using systems software?

timesharing
operating environment
None of these
multitasking
spreadsheet

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Operating System (OS)
Identify false statement

You can right click and choose Empty Recycle Bin to clean it at once
You can increase free space of disk by sending files in recycle bin
You can find deleted files in recycle bin
You can restore any files in recycle bin if you ever need

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Operating System (OS)
The FIFO algorithm

execute first the job that has been in the queue the longest
executes first the job with the least processor needs
executes first the job that first entered the queue
executes first the job that last entered the queue
None of these

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Operating System (OS)
The LRU algorithm

pages out pages that have been least used recently
None of these
pages out pages that have not been used recently
pages out pages that have been used recently
pages out the first page in a given area

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