GEOS SDK TechDocs
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2 The Structure of Memory
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2.2 Main Memory
While GEOS is designed to run on a standard system, it makes efficient use of expanded and extended memory, if it is available. GEOS treats extended memory as a fast and convenient RAM disk, swapping blocks into the extended memory rather than out to a slower disk drive. This incurs none of the usual overhead of a RAM disk such as a directory because it is treated as normal memory. Expanded memory is used in a similar manner.
GEOS SDK TechDocs
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| 2 The Structure of Memory
| 2.2 Main Memory