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11 definitions found
From Jargon File (4.3.1, 29 Jun 2001) : [ jargon ]
quantifiers In techspeak and jargon, the standard metric prefixes used
in the SI (Syste`me International) conventions for scientific
measurement have dual uses. With units of time or things that come in
powers of 10, such as money, they retain their usual meanings of
multiplication by powers of 1000 = 10^3. But when used with bytes or
other things that naturally come in powers of 2, they usually denote
multiplication by powers of 1024 = 2^(10).
Here are the SI magnifying prefixes, along with the corresponding
binary interpretations in common use:
prefix decimal binary
kilo- 1000^1 1024^1 = 2^10 = 1,024
mega- 1000^2 1024^2 = 2^20 = 1,048,576
giga- 1000^3 1024^3 = 2^30 = 1,073,741,824
tera- 1000^4 1024^4 = 2^40 = 1,099,511,627,776
peta- 1000^5 1024^5 = 2^50 = 1,125,899,906,842,624
exa- 1000^6 1024^6 = 2^60 = 1,152,921,504,606,846,976
zetta- 1000^7 1024^7 = 2^70 = 1,180,591,620,717,411,303,424
yotta- 1000^8 1024^8 = 2^80 = 1,208,925,819,614,629,174,706,176
Here are the SI fractional prefixes:
_prefix decimal jargon usage_
milli- 1000^-1 (seldom used in jargon)
micro- 1000^-2 small or human-scale (see micro-)
nano- 1000^-3 even smaller (see nano-)
pico- 1000^-4 even smaller yet (see pico-)
femto- 1000^-5 (not used in jargon---yet)
atto- 1000^-6 (not used in jargon---yet)
zepto- 1000^-7 (not used in jargon---yet)
yocto- 1000^-8 (not used in jargon---yet)
The prefixes zetta-, yotta-, zepto-, and yocto- have been included in
these tables purely for completeness and giggle value; they were adopted
in 1990 by the `19th Conference Generale des Poids et Mesures'. The
binary peta- and exa- loadings, though well established, are not in
jargon use either -- yet. The prefix milli-, denoting multiplication by
1/1000, has always been rare in jargon (there is, however, a standard
joke about the `millihelen' -- notionally, the amount of beauty required
to launch one ship). See the entries on micro-, pico-, and nano-
for more information on connotative jargon use of these terms. `Femto'
and `atto' (which, interestingly, derive not from Greek but from Danish)
have not yet acquired jargon loadings, though it is easy to predict what
those will be once computing technology enters the required realms of
magnitude (however, see attoparsec).
There are, of course, some standard unit prefixes for powers of 10. In
the following table, the `prefix' column is the international standard
suffix for the appropriate power of ten; the `binary' column lists
jargon abbreviations and words for the corresponding power of 2. The
B-suffixed forms are commonly used for byte quantities; the words `meg'
and `gig' are nouns that may (but do not always) pluralize with `s'.
prefix decimal binary pronunciation
kilo- k K, KB, /kay/
mega- M M, MB, meg /meg/
giga- G G, GB, gig /gig/,/jig/
Confusingly, hackers often use K or M as though they were suffix or
numeric multipliers rather than a prefix; thus "2K dollars", "2M of disk
space". This is also true (though less commonly) of G.
Note that the formal SI metric prefix for 1000 is `k'; some use this
strictly, reserving `K' for multiplication by 1024 (KB is thus
`kilobytes').
K, M, and G used alone refer to quantities of bytes; thus, 64G is 64
gigabytes and `a K' is a kilobyte (compare mainstream use of `a G' as
short for `a grand', that is, $1000). Whether one pronounces `gig' with
hard or soft `g' depends on what one thinks the proper pronunciation of
`giga-' is.
Confusing 1000 and 1024 (or other powers of 2 and 10 close in
magnitude) -- for example, describing a memory in units of 500K or 524K
instead of 512K -- is a sure sign of the marketroid. One example of
this: it is common to refer to the capacity of 3.5" microfloppies as
`1.44 MB' In fact, this is a completely bogus number. The correct size
is 1440 KB, that is, 1440 * 1024 = 1474560 bytes. So the `mega' in `1.44
MB' is compounded of two `kilos', one of which is 1024 and the other of
which is 1000. The correct number of megabytes would of course be 1440 /
1024 = 1.40625. Alas, this fine point is probably lost on the world
forever.
[1993 update: hacker Morgan Burke has proposed, to general approval on
Usenet, the following additional prefixes:
groucho
10^(-30)
harpo
10^(-27)
harpi
10^(27)
grouchi
10^(30)
We observe that this would leave the prefixes zeppo-, gummo-, and
chico- available for future expansion. Sadly, there is little immediate
prospect that Mr. Burke's eminently sensible proposal will be ratified.]
[1999 upate: there is an IEC proposal
(ftp://ftp.informatik.uni-erlangen.de/pub/doc/ISO/information-units) for
binary multipliers, but no evidence that any of its proposals are in
live use.]
From English Wiktionary: All languages (2023-07-27) : [ dictinfo.com:wikt-en-ALL-2023-07-27 ]
quantifiers
n.
(plural of en quantifier)
From English Wiktionary: English language only (2023-07-27) : [ dictinfo.com:wikt-en-en-2023-07-27 ]
quantifiers
n.
(plural of en quantifier)
From English Wiktionary: Western, Greek, and Slavonic languages only (2023-07-27) : [ dictinfo.com:wikt-en-Western_Greek_Slavonic-2023-07-27 ]
quantifiers
n.
(plural of en quantifier)
From English Wiktionary: Western languages only (2023-07-27) : [ dictinfo.com:wikt-en-Western-2023-07-27 ]
quantifiers
n.
(plural of en quantifier)
From Swedish Wiktionary: All languages (2023-07-27) : [ dictinfo.com:wikt-sv-ALL-2023-07-27 ]
quantifier's
Engelska n.
(böjning en subst quantifier)
From Swedish Wiktionary: All languages (2023-07-27) : [ dictinfo.com:wikt-sv-ALL-2023-07-27 ]
quantifiers
Engelska n.
(böjning en subst quantifier)
From Swedish Wiktionary: All languages (2023-07-27) : [ dictinfo.com:wikt-sv-ALL-2023-07-27 ]
quantifiers'
Engelska n.
(böjning en subst quantifier)
From English-Arabic FreeDict Dictionary ver. 0.6.3 : [ freedict:eng-ara ]
Quantifiers /kwˈɒntɪfˌaɪəz/
محدّدو الكميّة
From English-Czech dicts.info/FreeDict Dictionary ver. 0.1.3 : [ freedict:eng-ces ]
quantifiers /kwˈɒntɪfˌaɪəz/
kvantifikátory
From English - German Ding/FreeDict dictionary ver. 1.9-fd1 : [ freedict:eng-deu ]
quantifiers /kwˈɒntɪfˌaɪəz/
Quantifikatoren , Quantifizierer , Quantoren
see: quantifier
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