4 definitions found
From WordNet r 1.6 [wn]:
byte
n : a sequence of 8 bits (enough to represent one character of
alphanumeric data) processed as a single unit of
information
From Jargon File (4.2.3, 23 NOV 2000) [jargon]:
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 usually 8 bits, but may be 9 on 36-bit machines. Some older
architectures used `byte' for quantities of 6 or 7 bits, and the
PDP-10 supported `bytes' that were actually bitfields of 1 to 36 bits!
These usages are now obsolete, and even 9-bit bytes have become rare in
the general trend toward power-of-2 word sizes.
Historical note: The term was coined by Werner Buchholz in 1956
during the early design phase for the IBM Stretch computer; originally
it was described as 1 to 6 bits (typical I/O equipment of the period used
6-bit chunks of information). 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. The word was coined by mutating the word `bite' so it
would not be accidentally misspelled as {bit}. See also {nybble}.
From The Free On-line Dictionary of Computing (13 Mar 01) [foldoc]:
Byte
A popular computing magazine.
{Home (http://www.byte.com)}.
(1997-03-27)
From The Free On-line Dictionary of Computing (13 Mar 01) [foldoc]:
byte
/bi:t/ B A component in the machine {data hierarchy}
usually larger than a {bit} and smaller than a {word}; now
most often 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 adds:
I am sure I read in some historical brochure by IBM some 15-20
years ago 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 says:
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}]
(1998-08-06)
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