QR Code stands for "Quick Response" - and that's exactly what they deliver. Created in 1994 by Japanese company Denso Wave, QR codes are two-dimensional barcodes that can store much more information than traditional linear barcodes.
Think of a QR code as a digital bridge between the physical and online worlds. While a traditional barcode can only store about 20-25 characters, a single QR code can hold up to 4,296 characters - that's enough for a short essay!
Fun Fact: QR codes can store URLs, plain text, phone numbers, email addresses, WiFi passwords, contact information, and even Bitcoin wallet addresses. They're like tiny filing cabinets that can be read instantly.