Which point-of-sale innovation was FIRST widely adopted in airport retail to significantly reduce checkout times during peak travel periods?

Transportation centers like airports, train stations, and bus terminals have evolved from simple transit points to sophisticated retail environments. The integration of advanced point-of-sale systems has transformed how travelers shop during their journeys. This poll tests your knowledge about a groundbreaking POS innovation that changed the retail landscape in transportation hubs worldwide, balancing convenience with the unique challenges of these high-traffic environments.

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Multi-currency biometric payment systems
Mobile POS (mPOS) with roaming associates
Automated grab-and-go with RFID tracking
Virtual queue management with pre-ordering