Which systems are commonly used to store track data?

POS systems, or Point of Sale systems, are designed specifically to record and process sales transactions, making them a critical component in retail and service environments. These systems are equipped to handle various payment methods and capture essential transaction details, such as the items purchased, prices, and payment methods.

When it comes to tracking sensitive data, particularly for payment processing, POS systems often collect and store track data, which includes cardholder information that is essential for processing credit and debit card transactions. This capability underscores their role in seamless transactions and customer service while ensuring compliance with security standards, such as those outlined in the Payment Card Industry Data Security Standard (PCI DSS).

In contrast, while online banking systems, mobile payment apps, and transaction record systems may also handle transactions and store various types of data, they do not specifically function as the primary means for capturing the granular details of sales transactions in a physical retail environment like POS systems do.