At 12:47 PM 1/27/2003 -0600, Andy Ball wrote:

>Hello Wojciech,
>
>   WP> you mean 100MB or 100Mb?
>
>Assume the following definitions for anything I write where
>I don't explicitly define otherwise...
>
>   MB = Megabit   = 1,000,000 bits.
>   Mb = Megabyte  = 1,000,000 bytes.
>        (unless I'm talking about memory, where "16Mb"
>         probably implies 2^24 bytes.  ;-)
>   Kb = Kilobyte  = 1,024 bytes (note the upper-case K).
>   kB = kilobit   = 1,000 bits.

Odd, those are exactly the opposite of the way I've always seen B vs b used 
when talking about bandwidth or memory (I always figured the logic was 
something like "b is smaller than B, and bits are smaller than bytes, so b 
= bits and B = bytes"). (BTW, I've never seen any differentiation between 
"K" and "k". "M" of course has to be capitalized, since "m" would mean 
"milli").

Although it isn't an official standards document, here's one anecdotal 
example of this usage of b and B (the first useful thing that came up on 
google):

    http://www.crucial.com/library/mb_vs_mb.asp

>Where practical I try to stick to the SI intepretation of
>prefixes like this.

Where is this defined? I think it would be big news to lots of folks...


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