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RE: 180gb Drive Format ?


  • To: <ukha_d@xxxxxxx>
  • Subject: RE: 180gb Drive Format ?
  • From: "Ian Willoughby" <ian@xxxxxxx>
  • Date: Tue, 17 Jun 2003 12:02:35 +0100
  • Mailing-list: list ukha_d@xxxxxxx; contact ukha_d-owner@xxxxxxx
  • Reply-to: ukha_d@xxxxxxx

Correct. It is the same as Miles and Nautical Miles. The disk industry
choose 1000 as their yardstick because geometry of a hardisk has no real
relation to any particular numberbase (Except maybe numbers of heads) and
1000 is a much easier number to base calculations on for us mere mortals
:-)

R's
Ian


-----Original Message-----
From: aashram [mailto:groups@xxxxxxx]
Sent: Tue 17/06/2003 11:34
To: ukha_d@xxxxxxx
Cc:
Subject: RE: [ukha_d] 180gb Drive Format ?



so 180gb is not 180gb it is 171'ish gb



surely this cannot be right ?

how are the hard drive manufacturers getting

away with this







-----Original Message-----

From: Tony Lucas [mailto:tony@xxxxxxx]

Sent: Tue 17/06/2003 11:21

To: 'ukha_d@xxxxxxx'

Cc:

Subject: RE: [ukha_d] 180gb Drive Format ?







> -----Original Message-----

> From: Matt Walker [mailto:matthew.walker@xxxxxxx]

> Sent: 17 June 2003 11:09

> To: ukha_d@xxxxxxx

> Subject: RE: [ukha_d] 180gb Drive Format ?

>

<snip Calculations>

>

> = 193273528320 bytes on a 180gig disk

>

> / 1024 = 188743680 MB on a 180gig disk

>

>



Hard Drive Manufacturers work on MB and GB's being based on base 10 (eg

1000MB's in a GB), rather than base 8 (1024MB in a GB), so you always

end up with less than the indicated amount, as shown with David's

calculations.



Please feel free to correct me if Im wrong but this is certainly how it

used to be.



Regards,



Tony.




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