Operating System (OS)
Which of the following is not true about documentation?

All of these
Documentation increases the maintenance time and cost
Documentation, of a system, should be as clear and direct as possible
None of these
Documentation gives better understanding of the problem

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Operating System (OS)
Memory management is :

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

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