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A data card is a removable computer component that contains data or is used for data operations, such as data input, data output, data transformation and data transfer.
Data card memory is nonvolatile (held in an unpowered state) and built with dedicated information security logic. Data cards provide identification, authentication, data storage and application processing.
A data card is also known as a smart card.
Data cards may be classified by their functions:
Data cards feature time tracking through identification systems. They are made of plastic (polyvinyl chloride, acrylonitrile butadiene styrene or polycarbonate) and located in flash memory modules and memory sticks, also known as USB drives, facilitating temporary backup, portability and easy access.