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4.2.5 Memory
This option is for the display-only which is determined by POST (Power On Self Test) of the
BIOS
.
4.2.6 Base
Memory
The POST of the BIOS will determine the amount of base (or conventional) memory installed
in the system. The value of the base memory is typically 512K for systems with 512K memories
installed on the motherboard, or 640K for systems with 640K or more memory installed on the
motherboard.
4.2.7 Extended
Memory
The BIOS determines how much extended memory is existing during the POST. This is the
amount of memory located above 1MB in the CPU’s memory address map.
4.2.8 Other
Memory
This refers to the memory located in the 640K to 1024K-address space. This is memory that
can be used for different applications. DOS uses this area to load device drivers to keep as much
base memory free for application programs. Most use for this area is Shadow RAM.
4.2.9 Total
Memory
System total memory is the sum of basic memory, extended memory, and other memory.
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