[X4U] 160 gb drive read as 127.87 gb

["• Paul E. Miller •"]

>At 20:32 -0700 10/28/05, • Paul E. Miller • wrote:
>>My firewire drive is a 160 GB drive and upon reformatting it to use
>>as a storage/backup the newly formatted drive is now listed as:
>>Capacity: 127.87 GB.
>
>There is a difference between computer jargon and scientific usage 
>of the metric prefixes k, M, and G. In the Systeme Internationale 
>(SI) they are factors of 1000 (10). Computer folks often use K -> 
>1024, M -> (1024)^2 and G -> (1024)^3. The difference you quote is 
>too large to be explained by all of that but you should know about 
>it anyway. Merchants will always quote the number that looks bigger.
>
><http://www.physics.nist.gov/cuu/Units/binary.html>   says 100 GiB 
>is a bit more than 107 GB
>
>Note also that it's G, M, and k in the SI. b means bit; B means byte 
>(8 bits). In the SI, K is a Kelvin unit of temperature though it has 
>been used in upper case to mean 1000 (10) of an unspecified 
>something. (ohms of resistance and grams of pot come to mind.)
>
>The meaning of the .87 part of 127.87 is completely obscure. Is it 
>87/100 or 870/1024?
I don't have a clue about the .87 but it would appear that my present 
enclosure is too old and thus I will have to upgrade to a newer 
one...Argosy 360C is the suggested one.
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God bless,
• Paul E. Miller •