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Old March 5th 19, 11:45 AM posted to alt.comp.os.windows-10
Carlos E.R.[_3_]
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Posts: 1,356
Default Lost space on HDD.

On 04/03/2019 16.57, Ken Blake wrote:
On Mon, 4 Mar 2019 09:48:36 -0500, Wolf K
wrote:


NB that 191,291,392 bytes = 182MB. That's because the first number is
the actual number of bytes in decimal notation, but 1MB is a binary
number, equivalent to 1,048,576 bytes or 1,024 kilobytes. 1KB =1,024
bytes. Since 1,024 is "about" 1,000 bytes, it's called kilobyte. This
fudging has caused a lot of grief, but it's irreversible. [1].




Yes. No argument with anything there, but I'll just add my standard
post on the subject:

All hard drive manufacturers define 1TB as 1,000,000,000,000 bytes,
while the rest of the computer world, including Windows, defines it as
2 to the 40th power (1,099,511,637,776) bytes. So a 5 trillion byte
drive is actually around 4.5TB.

Some people point out that the official international standard defines
the "T" of TB as one trillion, not 1,099,511,637,776. Correct though
they are, using the binary value of TB is so well established in the
computer world that I consider using the decimal value of a trillion
to be deceptive marketing on the part of the hard drive manufacturer.


And I consider the HD manufacturers correct and the rest using the wrong
units.

--
Cheers, Carlos.
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