Clarence Verge wrote:
>>Roger Turk wrote:
>
> Because *all* PC's had 384 K memory starting at address A0000 whether or not
> "conventional memory" (0000 to 7FFFF) was fully populated. It is *this*
> memory that is reserved for loading video drivers, ROM, BIOS, etc., when the
> computer is booted.
Negative, Roger.
All PCs have the ADDRESS range, sure. The first PCs only had 64k installed.<<
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You are right Clarence in what you said, but we are talking about two
different things. The original PC's *did* have only 64K of *conventional*
memory that could be used by programs, but *also* had 384K of "reserved
memory" that was not useable by programs that started at address A000 and
went to FFFF for use by adaptors, ROM, etc.
Roger Turk
Tucson, Arizona USA
