Second screen

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A second screen involves the use of a computing device to provide a different viewing experience for content on another device.

The term commonly refers to the use of such devices to provide interactive features, like posts on social media platforms that take input from the audience during a broadcast, such as a television program. This type of technology is designed to keep the audience engaged with whatever they are watching^[1] and has been found to support social television and generate an online conversation around specific content.^[2][3] It is a type of screen casting technology that allows a smartphone or tablet to display its contents on another screen. A second screen can also refer to having multiple monitors connected to a computer.