Can Apple TV be used as a second monitor?

Yes, Apple TV can be used as a second monitor, albeit indirectly, through a feature known as AirPlay which is available on Mac computers and iOS devices. This functionality allows the user to wirelessly stream or mirror their device's display onto an HDTV connected to an Apple TV. In the context of a Mac, this means that someone can extend or duplicate their desktop onto a larger screen, providing additional real estate for multitasking or presenting content to an audience. However, it should not be confused with traditional monitor usage, as it relies on network connectivity and is subject to the constraints of wireless transmission, such as potential latency and occasional interference. Nevertheless, for many users, AirPlay to Apple TV offers a convenient and flexible way to expand their visual workspace.