I bought new Western Digital 1TB and its very good i just need to ask its only 930 GB where is reaming 80Gb?
Posted on Jun 02, 2009 under Digital news and reports |i have 160 but it show 149 .. Just wanna know for what is this space is used thank u
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June 2nd, 2009 at 8:29 am
Formatting of the drive!
June 2nd, 2009 at 8:29 am
when they say "1TB" they mean one trillion bytes. For a computer, however, 1TB is 1,099,511,627,776 bytes. Its simple advertising vs reality. You never received the full TB.
* According to the SI standard usage, 1 terabyte (TB) equals 1000000000000bytes = 1000^4 or 10^12 bytes.
* Using the traditional binary interpretation, a terabyte is 1099511627776bytes = 1024^4 or 2^40 bytes = 1 tebibyte (TiB).
The capacities of computer storage devices are typically specified using their standard SI values, but many operating systems and applications report in binary-based values.
June 2nd, 2009 at 8:29 am
This is a common issue among hard drives. It is not purely because of formatting, though the process of partitioning and formatting does take up a little space.
The main problem is the difference between how a hard drive manufacturer calculates a terabyte and how the computer calculates a Terabyte.
The drive manufacturer calculates 1 Terabyte as being 1,000,000,000,000 Bytes, whereas the computer calculates a Terabyte as 1,099,511,627,776 Bytes.
Because of the way computers are designed, and their Binary numbering system, everything has to be able to match well when converting from a base-10 numbering (like we use normally) and the Base-2 or Binary system computers use.
So, when you get a Terabyte, you are missing the 99,511,627,776 bytes that is the difference between the two. That comes out to be about [99,511,627,776 / 1,073,741,824(1Gb) = 92Gb
June 2nd, 2009 at 8:29 am
Johnny you are completely wrong. sorry. the 80gb is from where the manufacturer of the drive estimates the value of a gigabyte to 1000 mb when it is really 1024mb so all those 24s add up and eventually turn into 80gb that isnt really there. =P hope i helped.
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