In what year was the first self-checkout system patented, marking a revolutionary shift in retail technology?

The invention of self-checkout technology transformed how consumers interact with retail environments. This innovation combines hardware engineering, software development, and consumer psychology to create a streamlined shopping experience. Test your knowledge about this significant retail technology milestone that has now become commonplace in stores worldwide, yet was once considered a radical departure from traditional retail models.

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1984
1992
1997
2001