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Memory
This category is display-only which is determined by POST
(Power On Self Test) of the BIOS.
Base Memory
The POST will determine the amount of base
(or conventional) memory installed in the system. The value of
the base memory is typically 512K or 640K based on the
memory installed on the motherboard.
Extended Memory
How much extended memory is present
during the POST. This is the amount of memory located above
1MB in the CPU‘s memory address map.
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 users this area to load device drivers
in an effort to keep as much base memory free for application
programs. The BIOS is the most frequent user of this RAM area
since this is where it shadows RAM.
