Re: x64 see's 233GB not 250GB. by VWWall
VWWall
Fri Sep 23 11:57:54 CDT 2005
Rick wrote:
> This is something that has existed since the first hard drives were
> produced. The figures for the capacity for the hard drives are
> expressed in two different manners; one figure is decimal based and the
> other is binary based. The decimal figure is always higher because in
> decimal 1K=1,000. In binary 1K=1,024. You won't get the two to match
> by dividing 250GB by 1,024 though because there is some reserved space
> when the drive is formatted.
Formatting uses very little space on the drive. It is already low level
formatted, and adding the file system partition(s), takes up little more
room.
You need to divide by 1024 three times, since drive makers use 1000 for
each thousand and: 1GB = 1KB X 1KB X 1KB. 250GB/(1024 X 1024 X 1024) =
~232.8GB
>
> My 80GB Hitachi show a capacity of 82,335,019,008 bytes and 76.6 GB in
> the General tab of the system properties. The one in bytes is decimal,
> the on in GB is binary. But is you divide 82,335,019,008 by 1.024 the
> result is 80,405,292,000.
Again: 82.335,019,008 GB/(1024^3) = 76.68GB, as system properties says.
>
> So, there is nothing wrong, or unusual, about you drive capacity figures.
Right answer, but wrong math! :-)
--
Virg Wall