Expanded memory
storage
Memory used through EMS. In systems based on Intel 80386 or later processor expanded memory is part of the extended memory that is mapped into the expanded memory page frame by the processor. The mapping is controlled by the EMM. In earlier systems, a dedicated EMS hardware adaptor is needed to map memory into the page frame. In both cases, an appropriate device driver is needed for the proper communication between hardware and EMM.
(1996-01-10)
Read Also:
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software, storage (EMM) IBM PC memory manager software implementing Expanded Memory Specification, such as EMM386 or QEMM386. EMMs can usually provide UMB as well. (1996-01-10)
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storage The part of the IBM PC reserved memory address space used by EMS. (1996-01-10)
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storage (EMS) An IBM PC memory paging scheme enabling access to memory other than conventional memory in real mode. Expanded memory is provided through a page frame of at least 64 kilobytes in the reserved memory address region. Access to this memory is provided by an expanded memory manager (EMM) software. The EMM functions are […]
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