Parity in Computing

Parity in Data Transfer

• Types of Parity: Even parity and odd parity are commonly used for error detection during data transfer.
• Parity Bit Size: Typically, one bit is used as a parity bit when transferring a byte of data (8 bits).
• Purpose of the Parity Bit: The parity bit is used to ensure data integrity by enabling detection of single-bit errors in a byte.

Error Checking Approaches

• Alternative Approach: Instead of using a virtual table with parity bits for each row and column, a simpler method checks overall parity.
• Identification of Errors: Applying parity bits in rows and columns helps identify the specific location of an error within a data grid.

Comparison of Error Checking Methods

• Main Difference: The method using row and column parity provides more detailed error correction capabilities compared to standard parity checking, which typically only checks a single byte's parity.