hard disk capacity

  • Thread starter Thread starter gonu
  • Start date Start date
(message (Hello 'gonu)
(you :wrote :on '(19 Jan 2007 06:50:48 -0800))
(

g> i have 80 gb samsung hard disk while partioning it shows only 75 gb .
g> why?

80 GB is 75 GiB. Windows shows you size in GiBs erroneously saying it's in
GB, while disk manufacturers show size in GB.
so, Windows is incorrect here, it uses names that is NOT according to
international standards, such as IEC 60027-2.

http://en.wikipedia.org/wiki/GiB
http://en.wikipedia.org/wiki/Binary_prefix

1 GiB = 1,073,741,824 bytes ~= 1.073 GB
75 GiB = 80.475 GB

additionally, some size is allocated for filesystem structures.

)
(With-best-regards '(Alex Mizrahi) :aka 'killer_storm)
"People who lust for the Feel of keys on their fingertips (c) Inity")
 
gonu said:
i have 80 gb samsung hard disk while partioning it shows only 75 gb . why?
Click to expand...

Usual reason, hard drive manufacturers use decimal GBs, 1,000,000,000 bytes.
The size in the OS is usually shown using binary GBs, 1,073,741,824 bytes.
 
The UNFormatted capacity is 80 GB. After you format the harddrive you are
correctly left with 75 GB.
 
gonu said:
i have 80 gb samsung hard disk while partioning it shows only 75 gb .
why?
Click to expand...

80GB = many manufactures use 1-KB = 1000 Bytes
75GB = computer/software uses real number 1-KB = 1024 Bytes
 
(message (Hello 'Joel)
(you :wrote :on '(Sat, 20 Jan 2007 01:06:35 -0600))
(

J> 75GB = computer/software uses real number 1-KB = 1024 Bytes

but only ignorant companies, who don't care about standards -- like
Microsoft -- call that GB. it's GiB according to IEC 60027-2.

)
(With-best-regards '(Alex Mizrahi) :aka 'killer_storm)
"People who lust for the Feel of keys on their fingertips (c) Inity")
 
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