Webster's Online Dictionary
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Common Expressions: EXPANDED MEMORY

ExpressionsDefinition
Expanded memoryExpanded Memory is memory on an IBM PC compatible computer that is used through the Expanded Memory Specification ("EMS") memory paging scheme, enabling access to extra RAM above the 1MB conventional and upper memory area while the processor is in real mode. (This was critically important because MS-DOS ran in real mode.) This is accomplished either through an add-on peripheral holding the additional memory, or, in later 386-based computers, through Expanded Memory Manager (EMM) software. (references)

Source: compiled by the editor from various references; see credits.

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Specialty Expressions: EXPANDED MEMORY

ExpressionsDomainDefinition
Expanded memoryArtSee RAM. (references)
Expanded memoryComputingExpanded memory 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). Source: The Free On-line Dictionary of Computing..

Source: compiled by the editor from various references; see credits.

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