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byte 音标拼音: [b'ɑɪt] n. 字节
n. 位元组 字节位元组 byte 位元组; 数元组的; 拜 B byte 位元组 拜 byte n 1: a sequence of 8 bits (enough to represent one character of alphanumeric data) processed as a single unit of information larger than a {bit} and usually smaller than a {word}; now nearly always eight bits and the smallest addressable unit of storage. A byte typically holds one {character}. A byte may be 9 bits on 36-bit computers. Some older architectures used "byte" for quantities of 6 or 7 bits, and the PDP-10 and IBM 7030 supported "bytes" that were actually {bit-fields} of 1 to 36 (or 64) bits! These usages are now obsolete, and even 9-bit bytes have become rare in the general trend toward power-of-2 word sizes. The term was coined by Werner Buchholz in 1956 during the early design phase for the {IBM} {Stretch} computer. It was a mutation of the word "bite" intended to avoid confusion with "bit". In 1962 he described it as "a group of bits used to encode a character, or the number of bits transmitted in parallel to and from input-output units". The move to an 8-bit byte happened in late 1956, and this size was later adopted and promulgated as a standard by the {System/360} {operating system} (announced April 1964). James S. Jones I am sure I read in a mid-1970's brochure by IBM that outlined the history of computers that BYTE was an acronym that stood for "Bit asYnchronous Transmission E..?" which related to width of the bus between the Stretch CPU and its CRT-memory (prior to Core). Terry Carr In the early days IBM taught that a series of bits transferred together (like so many yoked oxen) formed a Binary Yoked Transfer Element (BYTE). [True origin? First 8-bit byte architecture?] See also {nibble}, {octet}. [{Jargon File}] (2003-09-21) byte: /bi:t/, n. [techspeak] A unit of memory or data equal to the amount used to represent one character; on modern architectures this is invariably 8 bits. Some older architectures used byte for quantities of 6, 7, or (especially) 9 bits, and the PDP-10 supported bytes that were actually bitfields of 1 to 36 bits! These usages are now obsolete, killed off by universal adoption of power-of-2 word sizes.
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