+++ /dev/null
-'\" t
-.\" Copyright (C) 2001 Andries Brouwer <aeb@cwi.nl>
-.\"
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-.\"
-.TH UNITS 7 2012-08-05 "Linux" "Linux Programmer's Manual"
-.SH NAME
-units, kilo, kibi, mega, mebi, giga, gibi \- decimal and binary prefixes
-.SH DESCRIPTION
-.SS Decimal prefixes
-The SI system of units uses prefixes that indicate powers of ten.
-A kilometer is 1000 meter, and a megawatt is 1000000 watt.
-Below the standard prefixes.
-.RS
-.TS
-l l l.
-Prefix Name Value
-y yocto 10^-24 = 0.000000000000000000000001
-z zepto 10^-21 = 0.000000000000000000001
-a atto 10^-18 = 0.000000000000000001
-f femto 10^-15 = 0.000000000000001
-p pico 10^-12 = 0.000000000001
-n nano 10^-9 = 0.000000001
-\(mc micro 10^-6 = 0.000001
-m milli 10^-3 = 0.001
-c centi 10^-2 = 0.01
-d deci 10^-1 = 0.1
-da deka 10^ 1 = 10
-h hecto 10^ 2 = 100
-k kilo 10^ 3 = 1000
-M mega 10^ 6 = 1000000
-G giga 10^ 9 = 1000000000
-T tera 10^12 = 1000000000000
-P peta 10^15 = 1000000000000000
-E exa 10^18 = 1000000000000000000
-Z zetta 10^21 = 1000000000000000000000
-Y yotta 10^24 = 1000000000000000000000000
-.TE
-.RE
-
-The symbol for micro is the Greek letter mu, often written u
-in an ASCII context where this Greek letter is not available.
-See also
-.sp
-.RS
-.UR http://physics.nist.gov\:/cuu\:/Units\:/prefixes.html
-.UE
-.RE
-.SS Binary prefixes
-The binary prefixes resemble the decimal ones,
-but have an additional \(aqi\(aq
-(and "Ki" starts with a capital \(aqK\(aq).
-The names are formed by taking the
-first syllable of the names of the decimal prefix with roughly the same
-size, followed by "bi" for "binary".
-.RS
-.TS
-l l l.
-Prefix Name Value
-Ki kibi 2^10 = 1024
-Mi mebi 2^20 = 1048576
-Gi gibi 2^30 = 1073741824
-Ti tebi 2^40 = 1099511627776
-Pi pebi 2^50 = 1125899906842624
-Ei exbi 2^60 = 1152921504606846976
-.TE
-.RE
-
-See also
-.sp
-.UR http://physics.nist.gov\:/cuu\:/Units\:/binary.html
-.UE
-.SS Discussion
-Before these binary prefixes were introduced, it was fairly
-common to use k=1000 and K=1024, just like b=bit, B=byte.
-Unfortunately, the M is capital already, and cannot be
-capitalized to indicate binary-ness.
-
-At first that didn't matter too much, since memory modules
-and disks came in sizes that were powers of two, so everyone
-knew that in such contexts "kilobyte" and "megabyte" meant
-1024 and 1048576 bytes, respectively.
-What originally was a
-sloppy use of the prefixes "kilo" and "mega" started to become
-regarded as the "real true meaning" when computers were involved.
-But then disk technology changed, and disk sizes became arbitrary numbers.
-After a period of uncertainty all disk manufacturers settled on the
-standard, namely k=1000, M=1000k, G=1000M.
-
-The situation was messy: in the 14k4 modems, k=1000; in the 1.44MB
-.\" also common: 14.4k modem
-diskettes, M=1024000; and so on.
-In 1998 the IEC approved the standard
-that defines the binary prefixes given above, enabling people
-to be precise and unambiguous.
-
-Thus, today, MB = 1000000B and MiB = 1048576B.
-
-In the free software world programs are slowly
-being changed to conform.
-When the Linux kernel boots and says
-
-.RS
-.nf
-hda: 120064896 sectors (61473 MB) w/2048KiB Cache
-.fi
-.RE
-
-the MB are megabytes and the KiB are kibibytes.
-.SH COLOPHON
-This page is part of release 3.79 of the Linux
-.I man-pages
-project.
-A description of the project,
-information about reporting bugs,
-and the latest version of this page,
-can be found at
-\%http://www.kernel.org/doc/man\-pages/.
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