TYAN TIGER 133 Manual page 38

Chapter 3
BIOS Configuration
Memory
You cannot change any values in the Memory fields; they are only for your
information. The fields show the total installed random access memory (RAM)
and amounts allocated to base memory, extended memory, and other (high)
memory. RAM is counted in kilobytes (KB: approximately one thousand bytes)
and megabytes (MB: approximately one million bytes).
RAM is the computer's working memory, where the computer stores programs
and data currently being used, so they are accessible to the CPU. Modern
personal computers may contain up to 64 MB, 128 MB, or more.
Base Memory: Typically 640 KB. Also called conventional memory.
The DOS operating system and conventional applications use this
area.
Extended Memory: Above the 1-MB boundary. Early IBM personal
computers could not use memory above 1 MB, but current PCs and
their software can use extended memory.
Other Memory: Between 640 KB and 1 MB; often called high
memory. DOS may load terminate-and-stay-resident (TSR) programs,
such as device drivers, in this area, to free as much conventional
memory as possible for applications. Lines in your config.sys file that
start with loadhigh load programs into high memory.
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