Operating System (OS)
Operating system

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

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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 a sequence of instructions
None of these
is the device where information is stored

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