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nibble
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Nibble
In computing, a nibble (often nybble or even nyble to simulate the spelling of byte) is a four-bit aggregation, or half an octet. As a nibble contains 4 bits, there are sixteen (24) possible values, so a nibble corresponds to a single hexadecimal digit (thus, it is often referred to as a "hex digit" or "hexit").
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Nibble
Ein Nibble (selten: Nybble) ist eine Datenmenge, die 4 Bits umfasst, es wird auch Halbbyte, Tetrade oder Quadrupel genannt.
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Nibble (informatique)
Un nibble (ou, plus rarement nybble) est, en informatique, un agrégat de 4 bits, soit un demi octet. Un nibble contenant 4 bits, il peut prendre seize (24) valeurs différentes et correspond donc à un seul chiffre hexadécimal, d'où son autre appellation de hex digit ou hexit). Deux chiffres hexadécimaux formant un octet, ce dernier est souvent représenté par deux nibble. On trouve aussi les termes "semioctet" ou "quartet" dans les domaines du réseau ou des télécommunications. Dans certains langages, on peut également rencontrer tétrade du grec tetra ("quatre").
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Nibble
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Nibble
Il nibble è un'unità di misura per indicare quattro bit.
Rappresenta comunemente la metà di un byte, utilizzato specialmente per rappresentare in binario ogni singola cifra esadecimale, potendo esprimere con 4 bit i valori compresi tra [0000,1111] cioè [0,15] o [0,F] in esadecimale. Il nibble era usato in passato quando erano molto diffuse le CPU a 4 bit. Con un nibble è possibile rappresentare una cifra della codifica BCD. Alcune architetture ormai completamente scomparse utilizzavano addirittura dei nibble da 3 bit.
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