Photos: 20 most important tech inventions of the past 100 years

​What will the future hold?

From the agricultural revolutions to the modern smartphone, the world has changed a lot in the past 100 years, and there's no telling how it will change in the next 100.

New technology trends, like home automation, self-driving cars, and other technology, can already be seen emerging in 2018, but do those items merit inclusion in the most important tech of the past 100 years? We may just have to wait until 2118 to find out.

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Image: phototechno, Getty Images/iStockphoto

By Brandon Vigliarolo

Brandon writes about apps and software for TechRepublic. He's an award-winning feature writer who previously worked as an IT professional and served as an MP in the US Army.