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parity bit
(redirected from Parity block)

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parity bit
n. Computer Science
A bit added to a binary code that indicates parity and is used to check the integrity of data.
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.parity bit - (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
check bit, parity
computer science, computing - the branch of engineering science that studies (with the aid of computers) computable processes and structures
bit - a unit of measurement of information (from binary + digit); the amount of information in a system having two equiprobable states; "there are 8 bits in a byte"
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If errors in D are detected, the system begins not simple repetitions of D, but repetitions of a parity block P(D) of the inner code.
A hybrid ARQ system with erasures correction and parity retransmission by Goldfeld, L.; Hofman, A.; Lyandres, V. / International Journal of Communications, Network and Systems Sciences (IJCNS)
In RAID 5, data is cut into fixed-size strips and separately stored in the hard disks in turn; meanwhile, a parity block will be created in each horizontal stripe or block and is designed to protect other data blocks in horizontal blocks, but can only handle single data block damage.
Improving data availability with RAID 6 by Chien, Hammer / Computer Technology Review
Each parity block contains information that can be used to recreate the information in the other blocks of data within a single stripe.
Conner announces RAID 5 capabilities for nStor CR2 subsystem by Business Wire
 
 
 
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