Which groundbreaking product design innovation did Dieter Rams pioneer at Braun that later heavily influenced Apple's design philosophy?

Product design has transformed our daily lives through innovative solutions to complex problems. Some designs are so revolutionary they've changed entire industries or created new ones altogether. This trivia question explores a pivotal moment in product design history that altered how we interact with technology. Test your knowledge of the design decisions that shaped modern tech products!

This is a live public trivia poll on AIPolls.Net. Vote and see real-time results.

The minimalist calculator design (ET44) that became the template for the iPhone calculator app
The click wheel interface that inspired the original iPod controls
The unibody aluminum casing technique used in MacBooks
The sliding unlock mechanism that appeared on early iPhones