slovodefinícia
parity bit
(encz)
parity bit, n:
parity bit
(gcide)
parity bit \par"i*ty bit`\, n. (Computers)
The bit within a data structure which is assigned a value of
1 or 0 so as to make the parity[7] of the data structure odd
or even. Data structures may or may not have parity bits,
dpending on whether the system does or does not perform
parity checking. The most commonly used parity bit is the
eigth (higher-order) bit of a byte, which is used when data
transmission uses only the 7 lower-order bits of each byte as
significant data; some memory systems use a ninth bit as a
parity bit for each eight bits (one byte) of significant data
in memory.
[PJC]
parity bit
(wn)
parity bit
n 1: (computer science) a bit that is used in an error detection
procedure in which a 0 or 1 is added to each group of bits
so that it will have either an odd number of 1's or an even
number of 1's; e.g., if the parity is odd then any group of
bits that arrives with an even number of 1's must contain
an error [syn: parity bit, parity, check bit]
parity bit
(foldoc)
parity bit

An extra bit added to a byte or
word to reveal errors.

See parity.

(1996-03-01)
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