| 1. | The 80386 introduced a flat 32-bit memory model with paged memory management.
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| 2. | Usually, with paged memory management, each job runs in its own address space.
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| 3. | Bank switching was later supplanted by 16-bit systems, which in turn gave way to paging memory management units.
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| 4. | However, on the 80386, with its paged memory management unit it is possible to protect individual memory pages against writing.
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