extended memory
extended memory (XMS memory) A way of accessing IBM-PC-type memory above 1 Mbyte, used by Intel 80386 processors and above in protected mode and by the 80286 in emulation. These processors can address the high memory directly, but the XMS protocol allows a number of programs to share this resource without destructive interactions. XMS memory was developed by Lotus, Intel, Microsoft, and AST.
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extended memory