The Encore PCI TV Tuner Adapter with FM Radio is a hardware device that allows your computer to receive over-the-air television broadcasts and FM radio signals. This adapter typically connects to your PC via a PCI slot and provides TV and FM radio functionality through compatible software, such as video player applications or media center programs.

To get this device working on a Windows computer, you need to install the proper drivers that allow your system to recognize and interact with the hardware. The drivers act as intermediaries between the TV tuner hardware and the software that allows you to watch TV and listen to FM radio.