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Units of information information


In digital computing and telecommunications, a unit of information is the capacity of some standard data storage system or communication channel, used to measure the capacities of other systems and channels. In information theory, units of information are also used to measure information contained in messages and the entropy of random variables.

The most commonly used units of data storage capacity are the bit, the capacity of a system that has only two states, and the byte (or octet), which is equivalent to eight bits. Multiples of these units can be formed from these with the SI prefixes (power-of-ten prefixes) or the newer IEC binary prefixes (power-of-two prefixes).

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Units of information

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and channels. In information theory, units of information are also used to measure information contained in messages and the entropy of random variables...

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Information

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which reduces uncertainty by half'. Other units such as the nat may be used. For example, the information encoded in one "fair" coin flip is log2(2/1)...

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Bit

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otherwise combining the units mathematically, although one may act as a bound on the other. Units of information used in information theory include the shannon...

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Logarithmic scale

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indicates the type of quantity and the base of the logarithm. Examples of logarithmic units include units of information and information entropy (nat, shannon...

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Unit of measurement

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of Units, SI. Among the different systems of units used in the world, the most widely used and internationally accepted one is SI. The base SI units are...

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Information Overload Unit

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Information Overload Unit is the 1981 debut full-length album by the Australian industrial band SPK. Originally released in 1981 by Side Effects, it was...

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File size

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superficially similar terms very incompatible.[citation needed] Units of information Metric prefix Based on the format standard, individual implementations...

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Information content

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self-information an observer would expect to gain about a random variable when measuring it. The information content can be expressed in various units of information...

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Unit prefix

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A unit prefix is a specifier or mnemonic that is prepended to units of measurement to indicate multiples or fractions of the units. Units of various sizes...

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Information theory

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Information theory is the mathematical study of the quantification, storage, and communication of information. The field was originally established by...

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Unit price information in supermarkets

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Unit price information printed on supermarket shelf labels (price tickets) illustrates the quantity of product by a unit of measure (price per 100 g,...

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Megabyte

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System of Units (SI). Therefore, one megabyte is one million bytes of information. This definition has been incorporated into the International System of Quantities...

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List of Nvidia graphics processing units

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This list contains general information about graphics processing units (GPUs) and video cards from Nvidia, based on official specifications. In addition...

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International System of Units

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coherent derived units, which can always be represented as products of powers of the base units. Twenty-two coherent derived units have been provided...

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Byte

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The byte is a unit of digital information that most commonly consists of eight bits. Historically, the byte was the number of bits used to encode a single...

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Qatar Financial Information Unit

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The Qatar Financial Information Unit (QFIU) is a Qatari government regulatory agency responsible for financial intelligence efforts to combat money laundering...

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Protocol data unit

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a protocol data unit (PDU) is a single unit of information transmitted among peer entities of a computer network. It is composed of protocol-specific...

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Channel capacity

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terms of the noisy-channel coding theorem, the channel capacity of a given channel is the highest information rate (in units of information per unit time)...

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Kilobyte

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multiple of the unit byte for digital information. The International System of Units (SI) defines the prefix kilo as a multiplication factor of 1000 (103);...

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Entropy in thermodynamics and information theory

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measure of microstates that does not have a fundamental physical unit other than the units of information, in this case nats, which is just a statement of which...

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Data

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collection of discrete or continuous values that convey information, describing the quantity, quality, fact, statistics, other basic units of meaning, or...

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Quantities of information

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the following formulae determines the unit of information entropy that is used. The most common unit of information is the bit, or more correctly the shannon...

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Information system

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Units of study – Swinburne University of Technology – Melbourne, Australia". "Building IT Systems – RMIT University". "Systems Development – Units of...

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