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When some one says Address space of a process, what exactly he means by that? PCB?

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As far as i know thread has the same address space as main process, that means there is no change in PCB for both...is it right?

posted Jun 19, 2015 by anonymous

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1 Answer

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Address space is the amount of memory allocated for all possible addresses for a process. Or in simple words Address Space refers to all memory a process can address. In general OS isolates address spaces of a process and One process can’t access another’s address space. Address space may refer physical or virtual addresses based on context.

Sample Process in the memory -
Process in Memory

Virtual to Physical Address Mapping -
Sample virtual to physical mapping

answer Jul 4, 2015 by Salil Agrawal
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