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Real mode

is the 16-bit, backwards-compatible mode of the Intel 80386 family. Real mode can be summarized as follows:
In real mode all of the CPU's protection features are disabled, paging is not supported, and program addresses correspond to physical memory addresses. The address space is limited to 1 MB of physical memory and uses memory segmentation scheme. Real mode is compatible with the 8086, the 8088, the 80186, and the real mode of the 80286.gif

Paco Hope
Wed Jun 21 23:54:28 EDT 1995