Doubt

Question

Where Does PCB get stored?

a) main memory

b) Kernel

c) both a & b

d) secondary memory

Answer 1

PCB (process control block) is a data structure which is used to store the attributes of a process.As the nature of PCB is dynamic i.e. with context switch the values of concerned attributes is changed so it is necessary that PCB resides in main memory.

Hence A) should be the correct option.

Comments

Please check this out PCB it is saying kernel.

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Kernel is a program which itself stored in MM.

Answer 2

PCB stores all the details about process and it is stored in os kernal( a computer program that constitutes the central core of a computer's operating system. ~wiki) area space of Main memory  not in User area of MM.

So option A is ans.

PS:- kernal is a program which itself stored in MM.

Comments

Ya answer should be a
Kernel is a program stored in mm

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ok,understood

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If process is swapped out (after context switching)  then will pcb will move out?