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On June 26, 1974, a 10-pack of Wrigley’s Juicy Fruit gum became the first item ever swiped across a supermarket UPC scanner. Come along with as we scan bar codes!
UPC CODES by Janet Spencer N THE BEGINNING..... • The invention of the UPC code began back in 1948, when the president of the Food Fair chain of grocery stores went to see the dean of Philadelphia’s Drexel Institute of Technology to beg him to instigate research on capturing product information automatically at the checkout counter. The dean said no, but the entire conversation had been overheard by a graduate student named Bernard Silver. • Silver was intrigued and mentioned the issue to his friend Joseph Woodland, who was a graduate student and teacher at Drexel. Together the two men began to work on the project.
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• Woodland, who had once worked on the Manhattan Project, had recently been working on a plan to improve Musak through renovations in sound technology. He was mulling over Silver’s product information problem while lounging on Miami Beach one day. He pulled his fingers through the sand, leaving lines. This gave him the idea to begin with Morse code and just extend the lines, so dots became skinny lines and dashes became fat lines— the first bar code! • To read the code, Woodland used the same technology he’d been working with on his Musak project. The technology was originally invented for movie sound tracks: sound was printed in a light-and-dark pattern on a transparent strip along the edges of the film, read by a light, transformed to electric waveforms, converted to sound, and played by loudspeakers. Woodland and Silver filed a patent application on October 20, 1949. Continued...
Vol. I Issue No. 26 VCTidbits.com