John Adrian Shepherd-Barron Scottish inventor of Indian origin Date of Birth: 23.06.1925 Country: Great Britain

1. Biography of John Adrian Shepherd-Barron
2. World War II and Career
3. Recognition and Controversies
4. Invention and Legacy
5. Later Life and Death

Biography of John Adrian Shepherd-Barron

John Adrian Shepherd-Barron was a Scottish inventor of Indian origin. He was born in Shillong, Assam, India. His father, Wilfred Shepherd-Barron, was a chief engineer in Chittagong, East Bengal, and later in East Pakistan and Bangladesh. He eventually became the president of the Institute of Civil Engineers. John's mother, Dorothy, was a renowned Olympic-level tennis player. He received his higher education at the University of Edinburgh and Trinity College, Cambridge.

World War II and Career

During World War II, Shepherd-Barron served in the country's Royal Air Force in the 159th Light Parachute Regiment. In the 1960s, he joined the company 'De La Rue Instruments.' It was during this time that the idea of a device that could dispense paper currency to individuals daily and round the clock came to his mind. As he later told the BBC, the general idea was inspired by a chocolate vending machine. This is how the concept of the ATM was born. The first ATM machine was installed in Enfield, North London, under the patronage of Barclays Bank in 1967. By then, Shepherd-Barron had already become the managing director of 'De La Rue Instruments.' People quickly recognized the usefulness of this device, and ATMs began to be constructed worldwide. According to the ATM Industry Association, there are currently over 1.7 million ATMs installed worldwide.

Recognition and Controversies

In 2005, Shepherd-Barron was awarded the Order of the British Empire for his invention. However, there are certain controversies surrounding the invention of ATMs. It is known that James Goodfellow developed his own technology for creating similar devices based on PIN codes. His creation was actually much closer to modern ATMs than Shepherd-Barron's project. Nevertheless, the credit for introducing the machine into operation undoubtedly belongs to John.

Invention and Legacy

The ATMs built by Shepherd-Barron used a technology that closely resembled modern plastic cards with magnetic stripes. These machines utilized special checks with a radioactive carbon-14 alloy, which emitted radiation that was captured by the ATM and compared with the PIN code entered by the user. Initially, six-digit numbers were planned to be used, similar to the six-digit military codes of that time. However, Shepherd-Barron later switched to four-digit codes because his wife could only remember up to four digits. There were concerns about the safety of such checks since the radioactive emission frightened people. However, Shepherd-Barron stated that, based on his calculations, noticeable harm to the human body would only occur after consuming at least 136,000 checks.

Apart from the ATM, Shepherd-Barron has several other lesser-known inventions to his name. He created a device that simulated the killer whale's cry to deter seals and sea lions from salmon farms. Unfortunately, this invention did not bring any practical benefits as the additional noise only attracted predators to the farms.

Later Life and Death

John Adrian Shepherd-Barron passed away on May 15, 2010, after a brief illness at Raigmore Hospital in Inverness, Scotland. He was 84 years old at the time of his death.