Operating System (OS)
Memory management is :

None of these
not used on multiprogramming systems
critical for even the simplest operating systems
replaced with virtual memory on current systems
not used in modern operating system

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Operating System (OS)
Memory

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

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