check bit

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check bit

A computer adds a check bit to a binary data stream.

Definition
  1. Noun:
    • (Computing) A parity bit: A check bit is a single binary digit (0 or 1) added to a set of bits (like a byte or word) to enable the detection of errors during data transmission or storage. Its value is chosen so that the total count of 1s in the data, including the check bit, is either always even (even parity) or always odd (odd parity).
Usage
  • Noun:
    • The system adds a check bit to each data block before sending it over the network.
    • If the receiver calculates an even number of 1s when the system uses odd parity, the check bit indicates a transmission error.
Advanced Usage
  • "Parity checking": The process of using a to verify data integrity.
    • Simple parity checking can detect single-bit errors but cannot correct them.
Variants and Related Words
  • Parity bit (n): A direct synonym for .
  • Error detection and correction (EDAC) (n): A broader field of techniques that includes the use of and more complex codes.
Synonyms
  • Parity bit
Related Phrases
  • To check parity: To verify the data using the .
    • The communication protocol requires the receiver to check the parity of every incoming packet.
check bit

A computer adds a check bit to a binary data stream.

Noun
  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

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