How do QR codes store information? What’s the difference between a QR code and a barcode? Why did it take so long for QR codes to take off? Join Chris and Jonathan as they break down QR codes in this podcast.Learn more about advertising on the HowStuffWorks podcasts at www.howstuffworks.com/advertisers.htmAnd to learn about your ad choices when listening to podcasts, visit https://www.howstuffworks.com/privacy.htm#ad-choices
