| slovo | definícia |
parity
(encz) | parity,parita n: joe@hw.cz |
parity
(encz) | parity,rovnocennost n: Mgr. Dita Gálová |
parity
(encz) | parity,rovnost n: [eko.] RNDr. Pavel Piskač |
parity
(encz) | parity,shoda n: [eko.] Petr Prášek |
Parity
(gcide) | Parity \Par"i*ty\, n. [L. paritas, fr. par, paris, equal: cf. F.
parit['e]. See Pair, Peer an equal.]
1. The quality or condition of being equal or equivalent; a
like state or degree; equality; equivalence; close
correspondence; analogy; as, parity of reasoning. "No
parity of principle." --De Quincey.
[1913 Webster]
Equality of length and parity of numeration. --Sir
T. Browne.
[1913 Webster]
2. Specifically: (Finance) Equivalence in value to the
currency of another country.
[PJC]
3. (Physics) A property assigned to elementary particles,
conceptualized as a form of symmetry, representing the
fact that no fundamental distinctions can be observed
between right-handed and left-handed systems of particles
in their interactions, and supported by the typical
observation that the total parity of a system is unchanged
as particles are created or annihilated; however, certain
interactions involving the weak force have been shown to
violate the principle of conservation of parity.
[PJC]
4. (Physics) A property of the wave function of a system,
which takes the value of +1 or -1, indicating whether the
value of the wave function changes sign if each of the
variables of the system is replaced by its negative.
[PJC]
5. (Med.) The condition of having borne a child or children,
alive or dead.
[PJC]
6. (Math.) The property of being even or odd; as, 3 has odd
parity, but 6 has even parity.
[PJC]
7. Hence: (Computers) The property of having an even or odd
number of bits set to the value of 1 (as opposed to 0); --
applied to bytes or larger groups of bits in a data
structure. It is used mostly in the process of {parity
checking}. The parity of a data structure can be changed
by changing the value of the parity bit.
[PJC] |
parity
(wn) | parity
n 1: (obstetrics) the number of liveborn children a woman has
delivered; "the parity of the mother must be considered";
"a bipara is a woman who has given birth to two children"
[syn: parity, para]
2: (mathematics) a relation between a pair of integers: if both
integers are odd or both are even they have the same parity;
if one is odd and the other is even they have different
parity; "parity is often used to check the integrity of
transmitted data"
3: (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]
4: (physics) parity is conserved in a universe in which the laws
of physics are the same in a right-handed system of
coordinates as in a left-handed system [syn: parity,
conservation of parity, space-reflection symmetry,
mirror symmetry]
5: functional equality |
parity
(foldoc) | parity
non parity
An extra bit added to a byte or
word to reveal errors in storage (in RAM or disk) or
transmission. Even (odd) parity means that the parity bit is
set so that there are an even (odd) number of one bits in the
word, including the parity bit. A single parity bit can only
reveal single bit errors since if an even number of bits are
wrong then the parity bit will not change. Moreover, it is
not possible to tell which bit is wrong, as it is with more
sophisticated error detection and correction systems.
See also longitudinal parity, checksum, {cyclic redundancy
check}.
(1996-03-01)
|
| | podobné slovo | definícia |
conservation of parity
(encz) | conservation of parity, n: |
disparity
(encz) | disparity,nerovnost n: Zdeněk Broždisparity,rozdílnost n: Zdeněk Brož |
fissiparity
(encz) | fissiparity, n: |
fixed parity
(encz) | fixed parity, |
fixed rate parity
(encz) | fixed rate parity, |
gold parity
(encz) | gold parity, |
oviparity
(encz) | oviparity,vejcorodost n: [zoo.] Jiří Dadák |
ovoviviparity
(encz) | ovoviviparity,vejcoživorodost adj: Jirka Daněk |
parity bit
(encz) | parity bit, n: |
parity check
(encz) | parity check, n: |
pay parity
(encz) | pay parity, |
purchasing power parity
(encz) | purchasing power parity,parita kupní síly [fin.] Mgr. Dita Gálová |
purchasing power parity theory
(encz) | purchasing power parity theory,teorie parity kupní síly [fin.] RNDr.
Pavel Piskač |
sliding parity
(encz) | sliding parity, |
viviparity
(encz) | viviparity,živorodost n: Zdeněk Brož |
teorie parity kupní síly
(czen) | teorie parity kupní síly,purchasing power parity theory[fin.] RNDr.
Pavel Piskač |
Disparity
(gcide) | Disparity \Dis*par"i*ty\, n.; pl. Disparities. [LL.
disparitas, fr. L. dispar unlike, unequal; dis- + par equal:
cf. F. disparit['e]. See Par, Peer.]
Inequality; difference in age, rank, condition, or
excellence; dissimilitude; -- followed by between, in, of, as
to, etc.; as, disparity in, or of, years; a disparity as to
color.
[1913 Webster]
The disparity between God and his intelligent
creatures. --I. Taylor.
[1913 Webster]
The disparity of numbers was not such as ought to cause
any uneasiness. --Macaulay.
Syn: Inequality; unlikeness; dissimilitude; disproportion;
difference.
[1913 Webster] |
Fissiparity
(gcide) | Fissiparity \Fis`si*par"i*ty\, n. (Biol.)
Quality of being fissiparous; fissiparism.
[1913 Webster] |
Gemmiparity
(gcide) | Gemmiparity \Gem`mi*par"i*ty\, n. (Biol.)
Reproduction by budding; gemmation. See Budding.
[1913 Webster] |
Germiparity
(gcide) | Germiparity \Ger`mi*par"i*ty\, n. [Germ + L. parere to produce.]
(Biol.)
Reproduction by means of germs.
[1913 Webster] |
Imparity
(gcide) | Imparity \Im*par"i*ty\, n. [Pref. im- + parity: cf. F.
imparit['e].]
1. Inequality; disparity; disproportion; difference of
degree, rank, excellence, number, etc. --Milton.
[1913 Webster]
2. Lack of comparison, correspondence, or suitableness;
incongruity.
[1913 Webster]
In this region of merely intellectual notion we are
at once encountered by the imparity of the object
and the faculty employed upon it. --I. Taylor.
[1913 Webster]
3. Indivisibility into equal parts; oddness. [R.]
[1913 Webster] |
Omniparity
(gcide) | Omniparity \Om`ni*par"i*ty\, n. [Omni- + -parity.]
Equality in every part; general equality.
[1913 Webster] |
Oviparity
(gcide) | Oviparity \O`vi*par"i*ty\, n. [See Oviparous.] (Biol.)
Generation by means of ova. See Generation.
[1913 Webster] |
Parity
(gcide) | Parity \Par"i*ty\, n. [L. paritas, fr. par, paris, equal: cf. F.
parit['e]. See Pair, Peer an equal.]
1. The quality or condition of being equal or equivalent; a
like state or degree; equality; equivalence; close
correspondence; analogy; as, parity of reasoning. "No
parity of principle." --De Quincey.
[1913 Webster]
Equality of length and parity of numeration. --Sir
T. Browne.
[1913 Webster]
2. Specifically: (Finance) Equivalence in value to the
currency of another country.
[PJC]
3. (Physics) A property assigned to elementary particles,
conceptualized as a form of symmetry, representing the
fact that no fundamental distinctions can be observed
between right-handed and left-handed systems of particles
in their interactions, and supported by the typical
observation that the total parity of a system is unchanged
as particles are created or annihilated; however, certain
interactions involving the weak force have been shown to
violate the principle of conservation of parity.
[PJC]
4. (Physics) A property of the wave function of a system,
which takes the value of +1 or -1, indicating whether the
value of the wave function changes sign if each of the
variables of the system is replaced by its negative.
[PJC]
5. (Med.) The condition of having borne a child or children,
alive or dead.
[PJC]
6. (Math.) The property of being even or odd; as, 3 has odd
parity, but 6 has even parity.
[PJC]
7. Hence: (Computers) The property of having an even or odd
number of bits set to the value of 1 (as opposed to 0); --
applied to bytes or larger groups of bits in a data
structure. It is used mostly in the process of {parity
checking}. The parity of a data structure can be changed
by changing the value of the parity bit.
[PJC] |
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 check
(gcide) | parity check \par"i*ty check`\, n. (Computers)
The act or process of testing whether a byte or other data
structure has an even or odd number of bits set to the value
of 1; -- it is used primarily to detect errors in data,
especially in memory banks or in data transmitted over a
communications line. The parity can be changed by assigning
one bit in each data structure as the parity bit, so that
the total number of bits set to the value of 1 is odd (odd
parity) or even (even parity). If parity is used for error
checking the writing and reading systems must first agree on
which type of parity (odd or even) to use; if the reading
system detects a deviation from the agreed parity, it signals
an error, to be handled by the error-handling processes of
the system.
[PJC] |
parity checking
(gcide) | parity checking \par"i*ty check`ing\, n. (Computers)
The process of performing a parity check.
[PJC] |
Scissiparity
(gcide) | Scissiparity \Scis`si*par"i*ty\, n. [L. scissus (p. p. of
scindere to split) + parere to bring forth: cf. F.
scissiparit['e].] (Biol.)
Reproduction by fission.
[1913 Webster] |
Viviparity
(gcide) | Viviparity \Viv`i*par"i*ty\, n. (Biol.)
The quality or condition of being viviparous. --H. Spencer.
[1913 Webster]
[1913 Webster] |
conservation of parity
(wn) | conservation of parity
n 1: (physics) parity is conserved in a universe in which the
laws of physics are the same in a right-handed system of
coordinates as in a left-handed system [syn: parity,
conservation of parity, space-reflection symmetry,
mirror symmetry] |
disparity
(wn) | disparity
n 1: inequality or difference in some respect |
fissiparity
(wn) | fissiparity
n 1: reproduction of some multicellular organisms by division,
as in the case of some starfish
2: the tendency to break into parts; "the fissiparity of
religious sects" |
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 check
(wn) | parity check
n 1: a system of checking for errors in computer functioning
[syn: parity check, redundancy check, odd-even check] |
longitudinal parity
(foldoc) | longitudinal parity
An extra byte (or word) appended
to a block of data in order to reveal corruption of the data.
Bit n of this byte indicates whether there was an even or odd
number of "1" bits in bit position n of the bytes in the
block. The parity byte is computed by XORing the data bytes
in the block. Longitudinal parity allows single bit errors to
be detected.
(1996-03-01)
|
non parity
(foldoc) | parity
non parity
An extra bit added to a byte or
word to reveal errors in storage (in RAM or disk) or
transmission. Even (odd) parity means that the parity bit is
set so that there are an even (odd) number of one bits in the
word, including the parity bit. A single parity bit can only
reveal single bit errors since if an even number of bits are
wrong then the parity bit will not change. Moreover, it is
not possible to tell which bit is wrong, as it is with more
sophisticated error detection and correction systems.
See also longitudinal parity, checksum, {cyclic redundancy
check}.
(1996-03-01)
|
parity bit
(foldoc) | parity bit
An extra bit added to a byte or
word to reveal errors.
See parity.
(1996-03-01)
|
parity error
(foldoc) | parity error
An error discovered by the inclusion
of a parity bit.
(1996-03-01)
|
parity errors
(jargon) | parity errors
pl.n.
Little lapses of attention or (in more severe cases) consciousness, usually
brought on by having spent all night and most of the next day hacking. “I
need to go home and crash; I'm starting to get a lot of parity errors.”
Derives from a relatively common but nearly always correctable transient
error in memory hardware. It predates RAM; in fact, this term is reported
to have already have been in use in its jargon sense back in the 1960s when
magnetic cores ruled. Parity errors can also afflict mass storage and
serial communication lines; this is more serious because not always
correctable.
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