thomas@mvac.UUCP (Thomas Lapp) (04/01/89)
To begin with the subject is misleading. The 896K boundry only occurs
with a machine with 1 meg. in it.
I posted a question about why a machine with 1 meg. shows that there is only
896K of usable memory in it -- and why I couldn't access the other 128K.
Here is the answer, as told to me by an IBM source:
The compatibility BIOS and the advanced BIOS together equal 128K. These are
stored in ROM and are loaded into RAM at power on. The reason this is done
is to enhance the performance of the machine. As a side note, this is done
for *all* '386 machines (put out by IBM, I assume), and are not limited to
the model 70. Also, it doesn't matter how much memory is in your machine --
you lose 128K from the total amount installed.
There you have it.
- tom
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Internet: mvac!thomas@udel.edu ! excess bits, it throws them under
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thomas%mvac.uucp@udel.edu ! (so THAT's why there are raised
! floors in computer rooms...)
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