How does Tap to Pay Work?
Rate itMember ratings
Tap to pay, or contactless payment, seems simple: you hold your credit card over the terminal, and a second later the screen says approved. But it's a lot more complicated than that!! The card has no battery or wires, and feels like just a solid piece of plastic. So how does it power up, talk to the terminal, and prove it isn't a fraudulent card - and all in less than a second!
Courtesy of Branch Education on YouTube. Watch on YouTube ↗
Sponsored
More Technology Documentaries
Cicada 3301: An Internet Mystery2018•18m•HD•★8.9
The Internet's Own Boy: The Story of Aaron Swartz2014•1h 45m•HD•★8.7
How Big Oil Conquered the World2017•1h 11m•HD•★8.6
Tesla: Master of Lightning2016•1h 26m•HD•★8.6
Theranos – Silicon Valley’s Greatest Disaster2019•25m•HD•★7.7
Bridges Before Steel: Pre-Industrial Marvels | Mega Bridges | FD Engineering2026•49m•HD•★7.7
AI Agents Are Coming | Qualcomm CEO Cristiano Amon2026•50m•HD•★7.7
Fully autonomous robots are much closer than you think – Sergey Levine2025•1h 28m•HD•★7.7
Tyco Resolute: The Cable-Laying Ship That Keeps the World Connected2022•46m•HD•★8.2
How Modern Engineering Has Learnt From Catastrophic Mistakes2024•2h 23m•HD•★8.0
The Metaverse: The Future of the Internet2022•23m•HD•★7.9
Pax Americana: The Weaponization of Space2026•1h 24m•HD•★7.8Comments
Loading comments…