Beep-bop. The sound of the supermarket checkout – a noise Morrisons felt the need to mute after the Queen’s death – is made possible by an invention which turns 70 this week: the barcode.
On 7 October 1952, a patent was granted to American inventors Bernard Silver and Norman Woodland. Four years earlier, a shopkeeper in Pennsylvania went to the local university begging for help. He needed a way to get customers through his store quickly because logistics were stopping him meeting demand since typing in product numbers and prices into tills was cumbersome. An electronic system wasn’t possible, said the university. Silver overheard the conversation, set up shop in his parents’ apartment and enlisted Woodland.
Woodland’s eureka moment came when he was on a Miami beach, drawing morse code in the sand. Looking at his dots and dashes, he realised that differing lines or shapes could be used to encode different numbers.
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