Off topic: nasobky kB

[David Rohleder]

michal na krause.cz (Michal Krause) writes:

> On 07/06/2000, David Rohleder wrote:
> 
> > :-) To je nesmysl.
> > 
> > Zkratky K, M, ... jsou standardizovane v norme SI jako nasobky
> > 1000. Proto 
> > 
> > 1K = 1000
> > 1M = 1 000 000
> 
> Neni to nahodou tak, ze male k znaci x1000 a velke K x1024 (a analogicky
> pro mega, giga, tera, ...)
> 
> > proste pouziti techto jednotek na KB, Kb je chyba, bohuzel zazita.
> 
> Moc tehle vete nerozumim, ale Kb zadnou chybu tam nevidim (KB je 1024
> bajtu a Kb 1024 bitu).
> 
> > Proc si myslite, ze KB je 1024 (nejake rozumne vysvetleni)? 
> 
> Ze by 2^10?

jenze kilo = 1000 (ze by to bylo z latiny?). Zadne 1000 tady nevidim.

<cite source=International System of Units (SI) SI prefixes>

Because the SI prefixes strictly represent powers of 10, they should
not be used to represent powers of 2. Thus, one kilobit, or 1 kbit, is
1000 bit and not 2^10 bit = 1024 bit. To alleviate this ambiguity,
prefixes for binary multiples have been adopted by the International
Electrotechnical Commission (IEC) for use in information technology.

</cite>
 
http://physics.nist.gov/cuu/Units/prefixes.html


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David Rohleder						davro na ics.muni.cz
Institute of Computer Science, Masaryk University
Brno, Czech Republic
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