Magnetic Stripe Cards

Magnetic stripe cards are plastic cards with a dark strip of magnetic material on the back that stores data, such as account information. When swiped through a card reader, the reader's magnetic head detects the data encoded in the stripe's magnetic patterns. This technology is commonly used for credit cards, debit cards, and ID cards, providing a quick way to access or verify information. The data stored is static and can be read multiple times, but it requires proper security measures to prevent unauthorized use. Magnetic stripe cards are widely used due to their simplicity and cost-effectiveness.