+++ /dev/null
-'\" t
-.\" Copyright (C) 2001 Andries Brouwer <aeb@cwi.nl>
-.\"
-.\" SPDX-License-Identifier: Linux-man-pages-copyleft
-.\"
-.TH units 7 (date) "Linux man-pages (unreleased)"
-.SH NAME
-units \- 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
-q quecto 10\[ha]\-30 = 0.000000000000000000000000000001
-r ronto 10\[ha]\-27 = 0.000000000000000000000000001
-y yocto 10\[ha]\-24 = 0.000000000000000000000001
-z zepto 10\[ha]\-21 = 0.000000000000000000001
-a atto 10\[ha]\-18 = 0.000000000000000001
-f femto 10\[ha]\-15 = 0.000000000000001
-p pico 10\[ha]\-12 = 0.000000000001
-n nano 10\[ha]\-9 = 0.000000001
-\[mc] micro 10\[ha]\-6 = 0.000001
-m milli 10\[ha]\-3 = 0.001
-c centi 10\[ha]\-2 = 0.01
-d deci 10\[ha]\-1 = 0.1
-da deka 10\[ha] 1 = 10
-h hecto 10\[ha] 2 = 100
-k kilo 10\[ha] 3 = 1000
-M mega 10\[ha] 6 = 1000000
-G giga 10\[ha] 9 = 1000000000
-T tera 10\[ha]12 = 1000000000000
-P peta 10\[ha]15 = 1000000000000000
-E exa 10\[ha]18 = 1000000000000000000
-Z zetta 10\[ha]21 = 1000000000000000000000
-Y yotta 10\[ha]24 = 1000000000000000000000000
-R ronna 10\[ha]27 = 1000000000000000000000000000
-Q quetta 10\[ha]30 = 1000000000000000000000000000000
-.TE
-.RE
-.P
-The symbol for micro is the Greek letter mu, often written u
-in an ASCII context where this Greek letter is not available.
-.SS Binary prefixes
-The binary prefixes resemble the decimal ones,
-but have an additional \[aq]i\[aq]
-(and "Ki" starts with a capital \[aq]K\[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\[ha]10 = 1024
-Mi mebi 2\[ha]20 = 1048576
-Gi gibi 2\[ha]30 = 1073741824
-Ti tebi 2\[ha]40 = 1099511627776
-Pi pebi 2\[ha]50 = 1125899906842624
-Ei exbi 2\[ha]60 = 1152921504606846976
-Zi zebi 2\[ha]70 = 1180591620717411303424
-Yi yobi 2\[ha]80 = 1208925819614629174706176
-.TE
-.RE
-.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.
-.P
-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=1000\ k, G=1000\ M.
-.P
-The situation was messy: in the 14k4 modems, k=1000; in the 1.44\ MB
-.\" 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.
-.P
-Thus, today, MB = 1000000\ B and MiB = 1048576\ B.
-.P
-In the free software world programs are slowly
-being changed to conform.
-When the Linux kernel boots and says
-.P
-.in +4n
-.EX
-hda: 120064896 sectors (61473 MB) w/2048KiB Cache
-.EE
-.in
-.P
-the MB are megabytes and the KiB are kibibytes.
-.SH SEE ALSO
-.UR https://www.bipm.org/\:documents/\:20126/\:41483022/\:SI\-Brochure\-9.pdf
-The International System of Units
-.UE .
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