Easy 72 pin simm question

A 72pin simm with 9, bits I guess they’re called, on it means that it has parity, right? For example, these chips I’m concidering buying
have parity because of the 9 bits, right?

Yeah, odd numbers mean parity.

More or less.

More or less?

Yes, there’s 8 data bits and one parity bit. Parity error checking uses the technique of adding up the vaslues of the 8 data bits and if the result is odd, the parity bit gets set to one and if even, the parity bit is set to zero.

OK, got it, thanks.