An IC card, or integrated circuit card, is a small plastic card embedded with a microchip that stores and processes data. These cards are commonly used for various applications, including payment systems, identification, and access control. They can be contact-based, requiring physical insertion into a reader, or contactless, allowing data transfer through radio frequency. IC cards are widely used in everyday life, such as in credit cards, smart cards, and transportation cards. Their secure data storage and processing capabilities make them a popular choice for enhancing security and convenience in transactions and identification processes.