parity bit

parity bit
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]

The Collaborative International Dictionary of English. 2000.

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  • Parity bit — 7 bits of data (number of 1s) 8 bits including parity even odd 0000000 (0) 00000000 10000000 1010001 (3) 11010001 01010001 1101001 (4) 01101001 11101001 1111111 (7) 11111111 …   Wikipedia

  • parity bit — Most modems have the capability to send an extra bit for every byte sent, which is used to help sense errors. This is called the parity bit. It can be set to no parity, mark parity, space parity, odd parity, or even parity. Most BBS s use do not… …   Dictionary of telecommunications

  • parity bit — lyginumo bitas statusas T sritis automatika atitikmenys: angl. parity bit; parity check bit vok. Paritätsbit, n; Paritätskontrollbit, n rus. бит четности, m; контрольный двоичный разряд четности, m; проверочный двоичный разряд четности, m pranc.… …   Automatikos terminų žodynas

  • parity bit — lyginumo bitas statusas T sritis informatika apibrėžtis ↑Bitas, papildantis ↑baitą, kompiuterio ↑žodį arba kitokią duomenų porciją taip, kad visų bitų, lygių vienetui, skaičius būtų lyginis. Naudojamas duomenų įrašymui ir persiuntimui patikrinti …   Enciklopedinis kompiuterijos žodynas

  • parity bit — bit that is transmitted along with the information that indicates whether it is odd or even …   English contemporary dictionary

  • Parity-Bit — Codetafel dualergänztes gerades Paritätsbit (E = even = gerade) Codetafel dualergänztes ungerades Paritätsbit (O = odd = ungerade) Die Paritätskontrol …   Deutsch Wikipedia

  • parity bit — noun (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… …   Useful english dictionary

  • Parity Bit — Prüfbit; zusätzliches ⇡ Bit, durch das jedes ⇡ Byte oder ⇡ Wort in der Weise ergänzt wird, dass die Anzahl aller dualen Einsen entweder immer ungerade (Odd Parity) oder immer gerade (Even Parity) ist. Auf diese Weise sollen einfache… …   Lexikon der Economics

  • parity bit — noun Date: 1957 a bit added to an array of bits (as on magnetic tape) to provide parity …   New Collegiate Dictionary

  • parity bit — noun A bit (binary digit) used to indicate whether the number of bits in a given set with value of one is even or odd. Parity bits are used as a simple error detection code …   Wiktionary

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