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Operating System (OS)

Operating System (OS)
...... system is built directly on the hardware

System
Operating
None
Environment

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Operating System (OS)
If the number of bits in a virtual address of a program is 16 and the page size is 0.5 K bytes, the number of pages in the virtual address space is

128
16
32
None of these
64

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Operating System (OS)
A relationship between processes such that each has some part (critical section) which must not be executed while the critical section of another is being executed, is known as

mutual exclusion
multitasking
semaphore
None of these
multiprogramming

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Operating System (OS)
Any files deleted in windows goes into

None of the listed here
Recycle bin
Trash can
Deleted files

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Operating System (OS)
Which of the following systems software does the job of merging the records from two files into one?

Security software
None of these
Documentation system
Utility program
Networking software

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Operating System (OS)
Recently deleted files are stored in

Taskbar
My computer
Desktop
Recycle bin

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