Smart Card Technology refers to a type of plastic card embedded with a microprocessor or memory chip that securely stores and processes data. These cards can be used for various applications, including payment systems, identification, and access control. They enhance security by requiring a personal identification number (PIN) or biometric verification for access. Smart cards come in two main types: contact and contactless. Contact smart cards require physical insertion into a reader, while contactless cards use radio frequency identification (RFID) to communicate wirelessly. This technology is widely adopted in industries such as banking, healthcare, and transportation for its convenience and security features.