In today’s fast-paced world, it is almost impossible to imagine banking without the convenience of Automated Teller Machines, or ATMs. These machines allow customers to withdraw cash, transfer funds, and conduct a variety of financial transactions at any hour, making everyday life remarkably more convenient.
The concept of the ATM was first proposed by Luther Simjian, who, in 1939, envisioned the so-called “hole-in-the-wall” machine. Simjian applied for 20 patents for his invention, and although the City Bank (now Citibank N.A.) tested it experimentally, customer reluctance led to its closure after just six months.
The path to the modern ATM, however, was paved by Scottish inventor James Goodfellow, who secured a patent in 1966. In 1967, John Shepherd-Barron installed the first successful ATM at Barclays Bank in London. Unlike today’s card-based systems, the initial ATM required a special cheque embedded with a small radioactive isotope called carbon-14. For security purposes, the PIN code associated with the machine was treated as a commercial secret.
The United States followed closely behind. In 1968, Don Wetzel developed an early version of the ATM in a Dallas bank. By 1971, Wetzel and his team had created the “Total Teller,” a machine capable not only of dispensing cash but also of accepting deposits, transferring funds between accounts, and providing advances from credit cards.
The key milestones in ATM development are summarised below:
| Year | Inventor / Key Person | Event |
|---|---|---|
| 1939 | Luther Simjian | Concept of “hole-in-the-wall” machine |
| 1966 | James Goodfellow | Patent for the ATM |
| 1967 | John Shepherd-Barron | First ATM installed in London |
| 1968 | Don Wetzel | Early ATM developed in the United States |
| 1971 | Don Wetzel & team | Creation of the “Total Teller” |
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