You can also add a device by simply connecting it to your Windows 8.1 computer and letting Windows do the setup for you. For example, you might want to connect your MP3 player so that you can easily sync your podcasts and music.
Tieback definition, a strip or loop of material, heavy braid, or the like, used for holding a curtain back to one side. See more.
A more simple definition could be: Biofeedback is the process of gaining greater awareness of many physiological functions primarily using instruments that provide information on the activity of those same systems, with a goal of being able to manipulate them at will.