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Overview

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Advantages\Disadvantages

Probably the most useful application of virtual addresses is memory protection. In a memory-protected environment, every process (executable) gets its own address space. To the executable, it looks like it is running alone on the system, no-one else there but the kernel. The bargain is that a misbehaved, malicious, or buggy executable cannot damage / corrupt other processes in the system. If the executable fails, the rest of the system keeps running instead of meeting the Guru Meditation, Blue Screen of Death, or whatever your system tells you when the system gets borked.

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