William Chops Westfield 23:55 2004-04-23:
>On Friday, Apr 23, 2004, at 14:43 US/Pacific, Carey @ NCSRadio wrote:
>
>>
>>Does anybody else find this extraordinary or extraordinarily odd?
>>http://physics.nist.gov/cuu/Units/binary.html
>"In December 1998 the International Electrotechnical Commission (IEC),
>the leading international organization for worldwide standardization in
>electrotechnology, approved as an IEC International Standard names and
>symbols for prefixes for binary multiples for use in the fields of data
>processing and data transmission. "
>
>Heh.  What a good idea.  Too bad it was, oh, 10 years too late for
>anyone to actually start using them...  A PC with 1 Gibibyte of memory.
>(kibi, mebi, gibi...)  Right.
>
>This wasn't a 1-Apr press release, was it?

Of course not!! I just wonder why it is so rarely used.  Maybe books and magazines does not care much of clarity?

Not using a cler way to read and write historically have wrecked many projects due to different people guessing different meaning...  We working with it really need to be clear in documentation etc.

And of course it is important.

If I am in a project and am given a specification to create 1kHz or 1KiHz calibration frequency we will be in the same situation as that mars project that missed mars because of meter/inch misunderstanding, if we cant tell k from Ki.

Another way of differing 1000 from 1024 some of us have used in the past was using k for 1000 (as always) but K for 1024.  That is not possible for mega as both M and m are occupied, i guess that is why they added that "i".

Simple and clear: if you see an "i" after a prefix, "adjust" that prefix to nearest 2^10

So a 4194304 Hz Xtal is more simple to express 4MiHz

(or 2^22Hz, but that is (for me) less clear to read and remember, as i know prefixes like M and thus Mi better than 2^something)

And yes have seen disks "120GiB" large.

/Morgan
--
Morgan Olsson, Kivik, Sweden

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