1GB = 1024MB, why?

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Patalkok Posted messages 295 Status Membre -  
 ddddddd -
Hello,

I would like to know why 1GB = 1024 MB?

It's like saying that 1kg = 1024 g ...

So if I understand correctly, to get the space accurately (for partitioning, for example), I multiply the 1024 by the GB I want to allocate?

Example:

I want 22 GB, so 1024 x 22 = 22528 MB?

Best regards.

Configuration: Windows 7 / Firefox 3.6.8

2 réponses

Pacorabanix Posted messages 4122 Registration date   Status Membre Last intervention   663
 
indeed, these are not the G and K of the metric system

it's a historical problem, memories, etc. being naturally easier to set up in powers of 2

2 ^10 = 1024...

in fact, to standardize, we should nowadays be talking about Kio instead of ko when we mean 1024 instead of 1000. This is supposed to be the standard.

One kio = 1024 bytes
One ko = 1000 bytes

unfortunately, it is not always followed...
24
Pacorabanix Posted messages 4122 Registration date   Status Membre Last intervention   663
 
0
rosa
 
Vous voulez dire quoi par KIO (je veux savoir la différence entre ko et kio)
Est-ce que c'est le kilo-octet ?
Merci
0
Bisbil
 
Cool, thanks for the very effective explanation.
0
ddddddd
 
Merci
0