Answers/Solutions to Exercises in Chapter 2, Exercise 3

E3: What is the difference between logical address and physical address?

A3: In some special situations, there is no difference. In general, a logical address (or relative address) is an address expressed in terms of the offset from a reference point (usually the beginning of the object module or a section of the object module). The physical address (or the absolute address) is the actual (hardware address). It is usually computed from the logical address by knowing the physical address of the reference point and adding to it the logical address. 

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