The term DEN DEVICE is a combination of two words, REMOTE and VCR. A REMOTE is a device used to control another device from a distance, usually using radio waves. It is commonly used to control televisions, DVD players, and other electronic devices. A VCR, or video cassette recorder, is an electronic device used to record and play back audio and video recordings on magnetic tape cassettes. It was a popular device in the 1980s and 1990s before being replaced by digital media. Together, these two devices form the term DEN DEVICE, which is used to describe a home entertainment system.