An IC card is a type of smart card that contains an integrated circuit, allowing it to store and process data. These cards are commonly used for various applications, such as public transportation, access control, and electronic payments. They can be contact-based, requiring physical contact with a reader, or contactless, allowing data transfer through radio frequency. IC cards are designed to enhance security and convenience in transactions. They often use encryption to protect sensitive information, making them a popular choice for banking and identification purposes. With their growing use in everyday life, IC cards are becoming essential tools for modern technology.