Operating System (OS)
The file system "NTFS" stands for

New Technology file system
Never Terminated file system
Non terminated file system
New type file system

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

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Operating System (OS)
System generation:

None of these
is always quite simple
is always very difficult
requires extensive tools to be understandable
varies in difficulty between systems

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