Single Parity Check

  • Single parity bit is also known as even parity bit or Vertical Redundancy Check (VRC)
  • According to single parity check, a parity bit also known as redundant bit is appended at the end of the data unit, so that the number of 1’s becomes even.

  • Before to transmission of bits, the 1’s bits are calculated by even parity generator which is also called compute the parity bit.
  • At receiving end, again compute the parity bit, if the data still holds even parity bit then there is no error in data.

Performance Of Single Parity

  • It can detect single bit errors easily.
  • It can detect burst error only if the No. of errors is Odd. If even number of bits changed then it cannot detect errors.

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