Wi-Fi: A trademark for products that are based on 802.11 wireless computer LAN standards.

Windows Media Center: Media software included in certain versions of the Microsoft Windows Vista operating system (Window Vista Home Premium and Windows Vista Ultimate). Using a PC with Windows Media Center is one of the easiest ways to incorporate a computer into your home theater system.

wireless access point: A device that acts as a base station of a wireless LAN, connecting one or more wireless devices to a wired LAN.

WMA: An acronym for Windows Media Audio. WMA is the standard audio format used by Windows Media Player. Most WMA files use a lossy data compression system.

woofer driver: A type of speaker driver that handles the low-frequency bass range (below 200 Hz).