Operating System (OS)
A disk scheduling algorithm in an operating system causes the disk arm to move back and forth across the disk surface in order to service all requests in its path. This is a

First come first served
FIFO
None of these
Scan
Shortest Seek Time First (SSTE)

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Operating System (OS)
Virtual Memory

is a method of allocating processor time.
is a method of memory allocation by which the program is subdivided into equal portions, or pages and core is subdivided into equal portions or blocks.
None of these
consists of those addresses that may be generated by a processor during execution of a computation.
allows multiple programs to reside in separate areas of core at the time.

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Operating System (OS)
A linker

must be run after the loader
is not necessary with variable partitions
creates a load module
None of these
is not needed with a good compiler

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Operating System (OS)
Operating system

provides a layered, user-friendly interface
enables the programmer to draw a flowchart
links a program with the subroutines it references
None of these
All of these

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