Operating System (OS)
System maintenance:

always requires several programs
is necessary on all systems, regardless of how good
is usually not necessary
None of these
is not required if the system is well written

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Operating System (OS)
The advantage(s) inherent to using high level languages is (are)

All of these
None of these
Improved debugging capability, and superior documentation
Fewer people, less management and shorter transition in learning time
A greater degree of machine independence

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