What Is a Smart Card? How It Works, Types & Uses
Ever tapped your badge on a reader and walked straight through a locked door without touching a key? That small piece of plastic is doing more work than it looks like it is. Chances are, you were holding a smart card. Smart cards have become a normal part of daily life. They open office doors, load transit fares, verify identity, and store loyalty points, all from a chip about the size of your fingernail. If you have ever wondered what makes these cards tick, or why so many businesses in British Columbia and across Canada are switching to them, this guide breaks it down in plain language. What Is a Smart Card? A smart card is a plastic card built around an embedded microchip that stores and processes data. Unlike a plain magnetic stripe card, which just holds a fixed string of information, a smart card can run small programs, encrypt data, and confirm identity on the spot. That extra intelligence is where the name comes from. Think of it as a tiny, secure computer that fits in your wa...