Buster Posey and his wife Kristen ride the trolley through San Francisco during a World Series championship parade in 2010. The San Francisco Giants legendary catcher and his wife officially became the parents of twins when Kristen gave birth to twins on Sunday, August 14, 2011.
Confidence votes 118. In RAM, parity is a type of built-in error-checking system. After the 8 bits in a byte receive data, even parity works by adding to total number of 1s. If the number is odd, the parity bit is set to 1; if the number is even, the parity bit is set to 0. When the data is read back, the total is added up again and compared to the first total.
In fact, the same is true for any even number of bit inversions. A parity bit is a weak form of error detection code. It has a small cost (one bit per message), but it is unable to detect many types of possible errors. (By the way, odd parity has the same costs, benefits, and weaknesses as even parity.)