Re: file size and creation date
Re: file size and creation date
- Subject: Re: file size and creation date
- From: Andy Wylie <email@hidden>
- Date: Wed, 13 Mar 2002 11:43:28 +1300
on 13/3/02 9:58 AM, Doug McNutt at email@hidden wrote:
>
At 22:46 +1300 3/12/02, Andy Wylie wrote:
>
> repeat until |size| < 1024
>
> set {|size| ,cnt} to {|size| / 1024, cnt + 1}
>
> end repeat
>
>
Is that right?
>
>
When the MacOS reports a file size in (kilo)bytes or (mega)bytes is it using
>
1024 and 1024^2 for the abbreviations "K" and "M"?
this really isn't the bite I expected when I wrote {"kb", "mb", "gb"}
[1] "kilobyte <unit> (KB) 2^10 = 1024 {bytes}
MB <unit> (Or "Mb") {megabytes} or {megabits}. When referring to
the size or data transfer rate of a storage device which is
accessed in multiples of eight bits (e.g. {RAM}, {hard disk})
this almost certainly means megabytes, but when referring to
the data transfer rate of a communications system it probably
means {megabits}. Some years ago, it is claimed, "MB" always
meant megabytes and "Mb" meant megabits but recently this
useful distinction has been lost." ;
>
The metric standard as promulgated by www.nist.gov says "k" means 1000(10) and
>
"M" means 1,000,000(10). Little "m" means 0.001(10).
>
damn gumint ;
>
In some computer circles capital "K" seems to mean 1024(10) rather than its
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NIST meaning of degrees Kelvin (a unit of absolute temperature). Little "k",
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the NIST standard, never means that.
>
>
Capital M when it refers to disk size is pretty much always 1,000,000(10)
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because that makes the number look bigger in the eyes of an advertising agency
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in the employ of disk manufacturers. Surely a GB is always 10^9 bytes for that
>
reason.
[1] "gigabyte <unit> 2^30 = 1,073,741,824 {byte}s = 1024 {megabytes}."
Roughly twice the amount of data required to encode half a human gene
sequence (including all the redundant codons)
>
>
All this from a fellow who used to refer to the 65536 byte addressable memory
>
of a Z80 as 65 kB.
}
a fellow who still refers to a ram as baa___ Andy
[1]The Free Online Dictionary of Computing via MacDICT
http://www.bainsware.com
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