[ILUG] Shameless plug

[Niall O Broin]

On 30 Apr 2008, at 18:33, paul at clubi.ie wrote:

> On Wed, 30 Apr 2008, Rory Browne wrote:
>
>>>  1000 terabytes. It is commonly abbreviated PB. When used with  byte
>>>  multiples, the prefix may indicate a power of either 1000 or  
>>> 1024, so
>>>  the exact number may be either:
>>>
>>>     * 1,000,000,000,000,000 bytes — 1000 ^ 5, or 10 ^ 15, or
>>>     * 1,125,899,906,842,624 bytes — 1024 ^ 5, or 2 ^ 50.
>
> Only scientists who can't count (called "computer scientists") use  
> that latter definition.
>
> To avoid ambiguity, IEC introduced seperate names for the 2^(n*10)  
> prefixes, where typically the first two chars of the 2^(3n) prefix  
> are prepended to "bi", e.g. Kilo -> Kibi, etc. The n==5 prefix is  
> "Pebi".

Ah bless - he did his best, but a demon typo did for him. What Paul  
meant to say (I trust) was:

To avoid ambiguity, IEC introduced seperate names for the 2^(n*10)  
prefixes, where typically the first two chars of the 10^(3n) prefix  
are prepended to "bi", e.g. Kilo -> Kibi, etc. The n==5 prefix is  
"Pebi".


Niall