Mailinglist Archive: opensuse (3893 mails)

["Carlos E. R." <robin.listas@xxxxxxxxxxxxxx>]

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The Tuesday 2007-01-02 at 14:38 -0600, Darryl Gregorash wrote:

> On 2007-01-01 13:27, James Knott wrote:
> > FWIW, when I create a 4000 MB slice, K3B shows it as 3.9 GB and 482 MB
> As we already know, sizes depend on whether you are a programmer, or
> live in the real world:
> 
> 4 GB = 4*1024 MB = 4096 MB, and 4000 MB = 4000/1024 GB = 3.906 GB

Actually, no.

  4 GB = 4*1000 MB = 4000 MB and 4000 MB = 4000/1000 GB = 4.00 GB

And:

 4 GiB = 4*1024 MiB = 4096 MiB, and 4000 MiB = 4000/1024 GiB = 3.906 GiB


Programmers are using the wrong units: prefixes like mega or giga were 
invented way earlier than programmers were born; they (we) must change and 
use the new names (mebibyte).

The easiest reference I can find: <http://en.wikipedia.org/wiki/MiB>:

|  The unit was defined by the International Electrotechnical Commission 
|  (IEC) in December 1998. Use of mebibyte and related units is strongly 
|  endorsed by IEEE and CIPM.

- -- 
Cheers,
       Carlos E. R.
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