Since perforated tape at the time could record eight bits in one position, it also allowed for a parity bit for error checking if desired.
sˈɪns pˈɜːfɚɹˌeɪɾᵻd tˈeɪp æt ðə tˈaɪm kʊd ɹᵻkˈoːɹd ˈeɪt bˈɪts ɪn wˈʌn pəzˈɪʃən, ɪɾ ˈɔːlsoʊ ɐlˈaʊd fɚɹə pˈæɹᵻɾi bˈɪt fɔːɹ ˈɛɹɚ tʃˈɛkɪŋ ɪf dɪzˈaɪɚd.