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

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

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Operating System (OS)
Most of the microcomputer's operating systems like Apple DOS, MS DOS and PC DOS etc. are called disk operating systems because

they are memory resident
they are initially stored on disk
None of these
they are available on magnetic tapes
they are partly in primary memory and partly on disk

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