Quick Response code

 A QR code (Quick Response code) is a type of two-dimensional barcode that can be read by a smartphone camera.¹

Here's a simple breakdown:

• What they look like: QR codes are square-shaped grids of black and white squares.²
• What they do: When you scan a QR code with your phone's camera, it usually directs you to a website, but it can also:
  • Open a contact in your phone
  • Download an app³
  • Connect to Wi-Fi⁴
  • Display text⁵
  • Show a location on a map⁶

How they work:

• Your phone's camera app (or a dedicated QR code scanner app) reads the pattern of black and white squares.⁷
• The code translates this pattern into information, like a website address.⁸
• Your phone then opens the website or performs the intended action.⁹

Where you might see them:

• Marketing: On advertisements, business cards, product packaging¹⁰
• Menus: In restaurants¹¹
• Events: For ticketing, check-in, and information¹²
• Public places: To provide information about landmarks or historical sites¹³

In essence, QR codes are a quick and easy way to link the physical world to digital information.¹⁴