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In computing, a nibble is 4 bits, or half an octet (an 8- bit byte). Being four 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"). A full byte is represented by two hexadecimal digits; therefore, it is common to display a byte of information as two nibbles.

The term nibble originates from the fact that the term byte is a play on the English word bite. A nibble is a small bite, or half a bite. The term nybble parallels the spelling of byte, in representing 8 nibbles, in the same way a byte represents 8 bits.

In earlier times, when computer storage was at a premium, the practice of optimizing memory at the expense of faster processing was known as nibble byting or byte nibbling.

See also


Nibbles is the name of a video game that is present on many modern mobile phones.





Computer terminology Units of information



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