A unit prefix is a specifier or mnemonic that is prepended to units of measurement. Units of various sizes are commonly formed by the use of such prefixes. The prefixes of the metric system, such as kilo- and milli-, are well known examples. These represent multiplication by powers of ten. In the information technology field it is common to use binary prefixes, which are based on powers of two. A number of prefixes, have been used or proposed by various sources, but not adopted by any standards organisation. There are also prefixes which official support have been dropped.
Read more about Unit Prefix: Metric Prefixes, Binary Prefixes, Unofficial Prefixes
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“During the Suffragette revolt of 1913 I ... [urged] that what was needed was not the vote, but a constitutional amendment enacting that all representative bodies shall consist of women and men in equal numbers, whether elected or nominated or coopted or registered or picked up in the street like a coroners jury. In the case of elected bodies the only way of effecting this is by the Coupled Vote. The representative unit must not be a man or a woman but a man and a woman.”
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