xref: /netbsd-src/share/man/man7/orders.7 (revision 737bafd6017a8ee9576906852fb3312b53a7c9fa)
1*737bafd6Sjakllsch.\" $NetBSD: orders.7,v 1.7 2022/11/19 22:09:21 jakllsch Exp $
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31b259f8eSjruoho.\" Copyright (c) 2010 The NetBSD Foundation, Inc.
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61b259f8eSjruoho.\" This code is derived from software contributed to The NetBSD Foundation
71b259f8eSjruoho.\" by Jukka Ruohonen.
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30*737bafd6Sjakllsch.Dd November 19, 2022
311b259f8eSjruoho.Dt ORDERS 7
321b259f8eSjruoho.Os
331b259f8eSjruoho.Sh NAME
341b259f8eSjruoho.Nm orders
351b259f8eSjruoho.Nd orders of magnitude
361b259f8eSjruoho.Sh DESCRIPTION
37d2fb482dSjruohoThe following table lists common multiples of bytes.
381b259f8eSjruoho.Bl -column -offset 2n \
391b259f8eSjruoho"Kilobyte" "Prefix" "Power of 2" "Power of 10"
401b259f8eSjruoho.It Sy Name Ta Sy Prefix Ta Sy Power of 2 Ta Sy Power of 10
411b259f8eSjruoho.It Kilobyte Ta kB Ta 2^10 Ta 10^3
421b259f8eSjruoho.It Megabyte Ta MB Ta 2^20 Ta 10^6
431b259f8eSjruoho.It Gigabyte Ta GB Ta 2^30 Ta 10^9
441b259f8eSjruoho.It Terabyte Ta TB Ta 2^40 Ta 10^12
451b259f8eSjruoho.It Petabyte Ta PB Ta 2^50 Ta 10^15
461b259f8eSjruoho.It Exabyte Ta EB Ta 2^60 Ta 10^18
471b259f8eSjruoho.It Zettabyte Ta ZB Ta 2^70 Ta 10^21
481b259f8eSjruoho.It Yottabyte Ta YB Ta 2^80 Ta 10^24
49*737bafd6Sjakllsch.It Ronnabyte Ta RB Ta 2^90 Ta 10^27
50*737bafd6Sjakllsch.It Quettabyte Ta QB Ta 2^100 Ta 10^30
511b259f8eSjruoho.El
521b259f8eSjruoho.Pp
534bd85b43SjruohoThe following table lists common bit rates as a power of ten.
544bd85b43Sjruoho.Bl -column -offset 2n \
554bd85b43Sjruoho"Megabit per second" "Prefix" "Bit per second" "Byte per second"
564bd85b43Sjruoho.It Sy Name Ta Sy Prefix Ta Sy Bit per second Ta Sy Byte per second
574bd85b43Sjruoho.It Bit per second Ta bit/s Ta 1 Ta 0.125
584bd85b43Sjruoho.It Byte per second Ta B/s Ta 8 Ta 1
594bd85b43Sjruoho.It Kilobit per second Ta kbit/s Ta 10^3 Ta 125
604bd85b43Sjruoho.It Kilobyte per second Ta kB/s Ta 8 * 10^3 Ta 1000
614bd85b43Sjruoho.It Megabit per second Ta Mbit/s Ta 10^6 Ta 125000
624bd85b43Sjruoho.It Megabyte per second Ta MB/s Ta 8 * 10^6 Ta 1000000
634bd85b43Sjruoho.It Gigabit per second Ta Gbit/s Ta 10^9 Ta 125000000
644bd85b43Sjruoho.It Gigabyte per second Ta GB/s Ta 8 * 10^9 Ta 1000000000
654bd85b43Sjruoho.It Terabit per second Ta Tbit/s Ta 10^12 Ta 125000000000
664bd85b43Sjruoho.It Terabyte per second Ta TB/s Ta 8 * 10^12 Ta 1000000000000
674bd85b43Sjruoho.El
684bd85b43Sjruoho.Pp
691b259f8eSjruohoThe following table lists common orders of magnitude as a power of ten.
701b259f8eSjruoho.Bl -column -offset 2n \
711b259f8eSjruoho"Septillionth" "Order" "Prefix" "Symbol" "Decimal"
721b259f8eSjruoho.It Sy Name Ta Sy Order Ta Sy Prefix Ta Sy Symbol Ta Sy Decimal
73*737bafd6Sjakllsch.It Nonillionth Ta 10^-30 Ta quecto Ta q Ta 0.000000000000000000000000000001
74*737bafd6Sjakllsch.It Octillionth Ta 10^-27 Ta ronto Ta r Ta 0.000000000000000000000000001
75d2fb482dSjruoho.It Septillionth Ta 10^-24 Ta yocto Ta y Ta 0.000000000000000000000001
76d2fb482dSjruoho.It Sextillionth Ta 10^-21 Ta zepto Ta z Ta 0.000000000000000000001
77d2fb482dSjruoho.It Quintillionth Ta 10^-18 Ta atto Ta a Ta 0.000000000000000001
78d2fb482dSjruoho.It Quadrillionth Ta 10^-15 Ta femto Ta f Ta 0.000000000000001
79d2fb482dSjruoho.It Trillionth Ta 10^-12 Ta pico Ta p Ta 0.000000000001
80d2fb482dSjruoho.It Billionth Ta 10^-9 Ta nano Ta n Ta 0.000000001
81d2fb482dSjruoho.It Millionth Ta 10^-6 Ta micro  Ta mu Ta 0.000001
82d2fb482dSjruoho.It Thousandth Ta 10^-3 Ta milli Ta m Ta 0.001
83d2fb482dSjruoho.It Hundredth Ta 10^-2 Ta centi Ta c Ta 0.01
84d2fb482dSjruoho.It Tenth Ta 10^-1 Ta deci Ta d Ta 0.1
85d2fb482dSjruoho.It One Ta 10^0 Ta - Ta - Ta 1
86d2fb482dSjruoho.It Ten Ta 10^1 Ta deca Ta da Ta 10
87d2fb482dSjruoho.It Hundred Ta 10^2 Ta hecto Ta h Ta 100
88d2fb482dSjruoho.It Thousand Ta 10^3 Ta kilo Ta k Ta 1000
89d2fb482dSjruoho.It Million Ta 10^6 Ta mega Ta M Ta 1000000
90d2fb482dSjruoho.It Billion Ta 10^9 Ta giga Ta G Ta 1000000000
91d2fb482dSjruoho.It Trillion Ta 10^12 Ta tera Ta T Ta 1000000000000
92d2fb482dSjruoho.It Quadrillion Ta 10^15 Ta peta Ta P Ta 1000000000000000
93d2fb482dSjruoho.It Quintillion Ta 10^18 Ta exa Ta E Ta 1000000000000000000
94d2fb482dSjruoho.It Sextillion Ta 10^21 Ta zetta Ta Z Ta 1000000000000000000000
95d2fb482dSjruoho.It Septillion Ta 10^24 Ta yotta Ta Y Ta 1000000000000000000000000
96*737bafd6Sjakllsch.It Octillion Ta 10^27 Ta ronna Ta R Ta 1000000000000000000000000000
97*737bafd6Sjakllsch.It Nonillion Ta 10^30 Ta quetta Ta Q Ta 1000000000000000000000000000000
981b259f8eSjruoho.El
99cb2cb67eSwiz.Sh SEE ALSO
100cb2cb67eSwiz.Xr units 1 ,
1015c1bce6bSjruoho.Xr strsuftoll 3 ,
102cb2cb67eSwiz.Xr number 6
1031b259f8eSjruoho.Sh STANDARDS
1041b259f8eSjruohoThere have been various attempts to standardize the set of binary prefixes.
1051b259f8eSjruohoOrganizations such as International Electrotechnical Commission
1061b259f8eSjruoho.Pq Tn IEC
1071b259f8eSjruohohave proposed new prefixes such as
1081b259f8eSjruoho.Dq kibi ,
1091b259f8eSjruoho.Dq mebi ,
1101b259f8eSjruoho.Dq gibi ,
1111b259f8eSjruohoand
1121b259f8eSjruoho.Dq yobi ,
1131b259f8eSjruohobut the adoption has been slow at best.
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