Blocks of data from the source are subjected to a check bit or parity bit generator form, where parity of :

1 is added to the block if it contains an odd number of 1’s, and
0 is added if it contains an even number of 1’s
This scheme makes the total number of 1’s even, that is why it is called even parity checking.

Parity check

Blocks of data from the source are subjected to a check bit or parity bit generator form, where parity of :

1 is added to the block if it contains an odd number of 1’s, and

0 is added if it contains an even number of 1’s

This scheme makes the total number of 1’s even, that is why it is called even parity checking.

Great