Q:
         
         
            
               What is Memory-Management Unit (MMU)?
            
                      
         
             Answer
                        Hardware device that maps virtual to physical address. In MMU scheme, the value in the relocation register is added to every address generated by a user process at the time it is sent to memory.
->The user program deals with logical addresses; it never sees the real physical addresses
          
         
         
         
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