Which voting machine innovation was first widely deployed in U.S. elections during the 1960s, revolutionizing how votes were tabulated?

Throughout political history, the technology behind voting systems has undergone remarkable innovation. From paper ballots to modern electronic systems, the 'retail' experience of voting has transformed dramatically to address security concerns, accessibility needs, and counting efficiency. This trivia question explores a significant milestone in the evolution of these critical democratic tools that changed how citizens interact with their government at the ballot box.

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Direct-recording electronic (DRE) touchscreen voting machines
Punch card voting systems
Optical scan paper ballot systems
Blockchain-based digital voting platforms