Operating System (OS)
What hole will allocates in "Worst-Fit" algorithm of memory management?

It allocates the smallest hole from the available memory holes
It allocates the exact same size memory hole
It allocates the largest hole from the available memory holes
It allocates the smaller hole than required memory hole

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Operating System (OS)
Memory management is :

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

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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
None of these
they are available on magnetic tapes
they are initially stored on disk
they are memory resident

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