Question

What are the functions of Memory Management? State any two types of  continuous Real  Memory Management System. 

Answer 1

 (1) In general, the memory management modules performs following functions :
(i) To keep track of all memory locations free or allocated and if allocated, to which process and how much.
(ii) To decide memory allocation policy i.e. which process should get how memory when and where.
(iii) To use various techniques and algorithms to allocate or dellocate memory locations. Normally, this is achieved with the help of some special hardware.
(2) The following are the memory management systems :
(A) Contiguous, Real Memory Management System :
(i) Single contiguous
(ii) Fixed partitioned
(iii) Variable partitioned
(B) Non-contiguous, Real Memory Management System :
i) Paging
(ii) Segmentation
(iii) Combined
(C) Non-contiguous, Virtual Memory Management System :
(i) Virtual memory