Operating System (OS)
Process is

None of these
contents of main memory
program in High level language kept on disk
a program in execution
a job in secondary memory

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Operating System (OS)
Semaphores

are used to do I/O
synchronize critical resources to prevent contention
are used for memory management
synchronize critical resources to prevent deadlock
None of these

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Operating System (OS)
Memory

is typically characterized by interactive processing and time-slicing of the CPU
is a device that performs a sequence of operations specified by instructions in memory.
is the device where information is stored
None of these
is a sequence of instructions

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