Wednesday, July 10, 2013

What is address space?



Address space is the set of virtual address related to the auxiliary memory. The virtual address is the address that is used by the programmer. In another way, address space is the total addressable space that is allocated to the programs from 0 to some maximum. For a system with 1024KB of auxiliary memory the address space is said to be 1024KB. Usually the address space of a system is larger than the memory space. In virtual memory system some part of the address space can be used as memory space to run the programs larger than the physical memory.

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