base 2 or base 10.

[Chris Jones]

> Both the article above and the Neowin one that it links to claim that
> for most OSs 1 kB is 1024. I find that surprising because OS X 10.6
> made the same proposed change last summer (use 1 kB as the default but
> give the option to use 1 KiB) specifically because, for all other OSs,
> 1 kB is 1000. Maybe for Apple, "all other OSs" means Microsoft.

There is no choice here, only what is correct and what is not. It is 
only correct to use KiB when using base 2 and KB when using base 10. Any 
other combination is just plain incorrect.

Chris