One area that saw significant developments in 2021 was artificial intelligence (AI). AI technologies, such as machine learning and natural language processing, were being applied to a wide range of applications, including autonomous vehicles, personal assistants, and healthcare.

Another area of technological advancement in 2021 was the Internet of Things (IoT), which refers to the interconnectedness of physical devices and objects through the internet. This technology was being used to improve efficiency and automation in a variety of industries, including manufacturing, transportation, and agriculture.

Other emerging technologies in 2021 included virtual and augmented reality, which were being used in gaming, training, and education, as well as 3D printing, which was being used to manufacture a wide range of products, from medical devices to aerospace components.

Overall, 2021 was a time of significant technological advancement and there were many exciting developments to watch.

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