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windows reporting 320GB as 297GB - Page 3

post #21 of 51
If I remember correctly Mac formats will actually use almost 320gb. Much closer than any windows format.
post #22 of 51
Quote:
Originally Posted by bbaseballboy1234 View Post
its not a rip off, its measurement of harddrives that companies use.
exactly, manufacturers measure a GB as 1 Billion Bytes. Whereas we see the actual storage of 1 Gb as 1x1024x1024x1024 (G,M,k,B) = 1073741824 B

which means that the true capacity of the drive is 0.9313 times the rated capacity
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post #23 of 51
Quote:
Originally Posted by philhalo66 View Post
i never really thought about it it always reads at 477GB on fresh format
To further declarify things...there's a movement to standardize between the binary/decimal debate with different prefixes a la "gigabyte" versus "gibibyte". *Nix OSes have already done this.

...There's a problem though both end up having a very similar abbreviations...and I'll add that NO spell checker on earth recognizes "gibi/m,ebi/ etc.-byte" as a word.
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post #24 of 51
Quote:
Originally Posted by KBcobra View Post
If I remember correctly Mac formats will actually use almost 320gb. Much closer than any windows format.
No it is different units. ALL *Nix OSes use SI prefixes and NOT the binary ones. GB on *Nix is a decimal quatity. GB on Windows is a binary quantity.
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post #25 of 51
Thread Starter 
hmm this is kinda interesting
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post #26 of 51
Quote:
Originally Posted by KBcobra View Post
If I remember correctly Mac formats will actually use almost 320gb. Much closer than any windows format.
That's only on the latest OS X versions (10.6 & later IIRC, but I may be wrong). And it's nothing to do with the format, it's because Apple decided to start displaying capacity using decimal bits (like the HDD manufacturers) rather than binary bits (like pretty much every other OS does - including older Mac versions).

Again - this is not a Windows issue, nor is it a loss of any kind. It's just a terminology issue. If you install OS 10.4 and look at a 320GB drive, it calls it a 297GB drive. If you then install 10.6 the same drive will be called a 320GB drive. If the drive was half full under 10.4 it would show 149.5GB used, but the exact same data would show up as taking up 160GB under 10.6 - ie the capacity hasn't changed, just the description of it.
post #27 of 51
Quote:
Originally Posted by Skripka View Post
No it is different units. ALL *Nix OSes use SI prefixes and NOT the binary ones. GB on *Nix is a decimal quatity. GB on Windows is a binary quantity.
Really? How come I can fit a 7.8 GB file on 8 GB flash drive on an OS X format but I cant put that same file on the same drive with a windows format.

edit:This is 10.6 btw.
Edited by KBcobra - 4/1/11 at 7:54am
post #28 of 51
Oh, you so crazy...

Hard drive manufacturers count megabytes as 1000 KB, but everyone else counts megabytes as 1024 KB.

Get used to it, it will be happening for a while.
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post #29 of 51
Quote:
Originally Posted by KBcobra View Post
Really? How come I can fit a 7.8 GB file on 8 GB flash drive on an OS X format but I cant put that same file on the same drive with a windows format.
It is an issue of units. Not an actual size difference. What are you calling a "GB" and what does that abbreviation actually mean.

The formatting should not matter-as it is the OS which reads out and interprets the capacity.

Quote:
Originally Posted by Concorde105
Oh, you so crazy...

Hard drive manufacturers count megabytes as 1000 KB, but everyone else counts megabytes as 1024 KB.
If by "everyone else" you mean only Windows/computer software people/RAM manufacturers...The entire scientific community has been using decimal prefixes before computer scientists hijacked the prefixes. So technically the HDD people are "right".
Edited by Skripka - 4/1/11 at 7:57am
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post #30 of 51
Quote:
Originally Posted by Skripka View Post
It is an issue of units. Not an actual size difference. What are you calling a "GB" and what does that abbreviation actually mean.

The formatting should not matter-as it is the OS which reads out and interprets the capacity.
Fair enough, learn something new everyday .
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