What is the primary function of magnetic swipe cards?

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The primary function of magnetic swipe cards is to gain access through an electronic access system. These cards contain a magnetic stripe that holds encoded data, which can include identification information that is read by a card reader when the card is swiped. This functionality allows organizations to control and restrict access to secure areas, ensuring that only those with authorized cards can enter.

The encoding on the magnetic stripe typically includes the cardholder's identification data, which the system verifies against a database to grant or deny access. This makes it an effective tool for enhancing security in places where controlled entry is necessary.

While magnetic swipe cards can store information, such as a user's name and ID number, their primary purpose is related to the access control systems they interact with. Proximity systems, on the other hand, function differently by allowing access through radio frequency identification (RFID) without physical swiping. Additionally, using a card to pay a security guard does not align with the typical operation or purpose of a magnetic swipe card.

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