Logical vs. Physical Address Space

        Logical vs. Physical

                Address 

The concept of a logical address space that is bound to a
separate physical address space is central to proper 
memory management

–Logical address – generated by the CPU; also referred to as virtual address

–Physical address – address seen by the memory unit

•Logical and physical addresses are the same in compile-time and load-time address-binding schemes;

 logical (virtual) and physical addresses differ in execution-time address-binding scheme

•Logical address space is the set of all logical addresses generated by a program

•Physical address space is the set of all physical addresses generated by a program