who invented atm card

The system that underpins the modern ATM card and its security, the Personal Identification Number (PIN) technology, was invented by Scottish engineer James Goodfellow. In 1966, he was granted a patent for his design which involved pairing a coded token (precursor to the plastic card) with a multi-character PIN. Although John Shepherd-Barron invented the first cash dispensing machine installed in 1967, his device used single-use, chemically coded cheques. Goodfellow's system, featuring the reusable card and PIN, is the foundation for the ATM technology used by banks worldwide today.