Which company pioneered the first widespread self-service airline check-in kiosks in the late 1990s that revolutionized airport retail point-of-sale systems?

The transportation industry has been revolutionized by technological innovations in retail point of sale systems. From traditional ticket counters to modern self-service kiosks and mobile apps, the way we purchase transportation services has dramatically evolved. Test your knowledge about the companies and technologies that transformed how we buy tickets for planes, trains, and other transit options!

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Continental Airlines (now part of United)
American Airlines
Northwest Airlines (now part of Delta)
JetBlue Airways