Final answer:
The I/O boundary in computing defines and controls the flow of data between different storage types within a system.
Explanation:
The I/O boundary is a critical concept in computing that acts as a barrier separating different storage types such as volatile and persistent storage, influencing data flow within a system. It does not just direct data based on address but plays a more significant role in controlling the movement of data in and out of the system.
In essence, the I/O boundary does not just divide storage into inside and outside data but regulates data transfer, ensuring data integrity and system security.
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