Parity bit is an extra bit included with the n-bit binary message to make the total number of 1's in this message(including the parity bit) either odd or even.
- Parity bit acts as a check on a set of binary values.
- It is used to find errors that may occur during data transmission.
- Parity bit is added to every data unit that are transmitted.
There are two ways of parity error checking :
Even Parity :
Even parity refers to a parity checking mode, in which the extra bit is set to 1 if there are odd number of 1's in the given data stream.
- If the number of 1's are even number in the data stream then the extra bit is set as 0.
Odd Parity :
Odd parity refers to a parity checking mode, in which the extra bit is set to 1 if there are even number of 1's in the given data stream.
- If the number of 1's are odd number in the data stream then the extra bit is set as 0.
Examples of Even/Odd parity :
0 comments:
Post a Comment