Today, June 27th, marks the 40th birthday of the device that has a large impact on the world: the ATM.The Inventor of the cash machine (ATM), John Shepherd-Barron, installed the first automated teller machine, known then as cash machine in Enfield, North England in a Barclays branch.
The cash machine installed used a check authenticated by a four digit PIN, also another invention.
Why four digit when now the industry is moving into 6 digit to improve security? Because John's wife said she can only remember a four digit PIN.
(image from BBC)
Thanks a lot, this article gave me a relief on my thesis :)
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