Explain main memory Management components of OS with its activities | Operating System Question & Answer

 Main-Memory is a large array of words or bytes.  

 Each word or byte has its own address. 

 Main memory provides storage that can be access directly by the CPU. 

 That is to say for a program to be executed, it must in the main memory. 

The major activities of an operating in regard to memory-management are:  

 Keep track of which part of memory are currently being used and by whom. 

 Decide which processes are loaded into memory when memory space becomes available.  

 Allocate memory space as needed Deallocate memory space as needed.