Other special characters and punctuation marks were added to the card code, involving as many as three punches per column (and in 1964 with the introduction of EBCDIC as many as six punches per column).
IBM | Orson Scott Card | IBM PC compatible | IBM DB2 | credit card | IBM mainframe | card game | Discover Card | smart card | punched card | IBM System/360 | IBM Personal Computer | QSL card | IBM System/370 | Christmas card | VISA (credit card) | Penalty card | Maestro (debit card) | IBM AIX | United Bank Card | Pokémon Trading Card Game | IBM WebSphere | IBM Selectric typewriter | IBM Research | IBM Rational Quality Manager | IBM Personal Computer/AT | IBM 7090 | debit card | Yu-Gi-Oh! Trading Card Game | Playing card |