# The Barcode That Did Not Need A Computer

# The Barcode That Did Not Need A Computer

THE QR CODE WAS BORN IN JAPAN, NOT THE UNITED STATES. THIS SIMPLE FACT CHANGES EVERYTHING WE ASSUME ABOUT TECHNOLOGY AND ITS ORIGIN.

IN 1994, A COMPANY CALLED DENSO WAVE WORKED FOR THE TOYOTA GROUP. THEY INVENTED A NEW TYPE OF BARCODE THAT COULD HOLD MORE DATA THAN ANYTHING PREVIOUSLY AVAILABLE TO FACTORY FLOORS. WHILE MOST SCANNERS AT THE TIME COULD ONLY READ ONE LINE OF INFORMATION, DENSO WAVE'S DESIGN ALLOWED TWO-DIMENSIONAL DATA STORAGE. THIS MEANT THE CODE COULD CONTAIN A BUNCH OF DETAILS ABOUT A CAR PART, SUCH AS ITS MATERIAL AND THE FACTORY WHERE IT WAS MADE.

THEY NEEDED THIS SYSTEM BECAUSE CAR MANUFACTURING IS EXTREMELY COMPLEX. IF WORKERS LOST TRACK OF WHICH PART BELONGED TO WHICH CAR, WHOLE ASSEMBLIES COULD BE STOPPED. TRADITIONAL BARCODES WERE TOO SMALL TO HOLD ALL THE INFORMATION REQUIRED FOR A SINGLE ENGINE COMPONENT. DENSO WAVE'S SOLUTION WAS TO REPLACE THE HORIZONTAL LINE WITH BOTH VERTICAL AND HORIZONTAL PATTERN BLOCKS. THIS INCREASED THE CAPACITY DRAMATICALLY, ALLOWING THE CODE TO BE RECOGNIZED FROM ANY ANGLE WITHOUT ERROR.

THEY CALLED THIS NEW SYSTEM THE QUICK RESPONSE CODE, OR QR CODE FOR SHORT. IT WAS BORN NOT FROM A GOVERNMENT LABORATORY BUT FROM A PRIVATE COMPANY TRYING TO SOLVE A SPECIFIC PROBLEM WITHIN ITS OWN WORKSHOP. THIS CHOOSES THE PRACTICAL OVER THE THEORETICAL, SHOWING THAT INNOVATION OFTEN ARRIVES FROM A NEED TO FIX A REAL-WORLD GLITCH RATHER THAN FROM PURE SCIENTIFIC CURIOSITY.

TODAY WE CANNOT IMAGINE OUR LIVES WITHOUT THIS JAPANESE INVENTION. FROM PAYING FOR COFFEE AT A NEARBY CAFE TO BOOKING A FLIGHT TICKET ON OUR SMARTPHONE, WE SCAN QR CODES CONSTANTLY. THE ORIGINAL PURPOSE WAS TO COUNT CAR PARTS, BUT NOW IT ACTUALLY CONNECTS US ALL TO THE DIGITAL WORLD. WE USE A SYSTEM DESIGNED FOR METAL BOLTS AND NUTS TO OPEN OUR DIGITAL LIVES.