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In real mode, the effective memory address is the same as the linear, or physical, memory address. The segment register operates by specifying the base of a 64kb region of memory, each region overlapping the other by 16 bytes.

In protected mode, the effective address is translated by the page table which provides a larger region size and more memory addressibility. The segment register, a/k/a selector, selects the particular page table to use.

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14y ago
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14y ago

The bits path size, real mode works on a 16 bit path size and protect mode works using a 32 bit path size.

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14y ago

= What is the difference between real mode and protected mode =

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12y ago

Real mode processor works as 8086/8088 while Protected mode processsor works as 80286

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4y ago

In real mode it handle automatic through the use of an internal machine together with the segment register.

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Q: What is the difference between CPU working in real mode and protected mode?
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