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WEEE Directive (Waste Electrical and Electronic Equipment Directive)

European Directive on waste electrical and electronic equipment (WEEE), valid in Germany since March 2005, which obligates all manufacturers to accept the return of waste equipment. T-Mobile introduced measures aimed at recycling old cell phones in 2003, and was thus one step ahead of the European Directive.


A Wiki  (short for WikiWiki or WikiWeb) is a system for websites whose contents can both be read as well as modified by users online. Usually, a simple markup language is used instead of HTML for editing the contents. The most well-known application is the online encyclopedia Wikipedia.

WiMAX (Worldwide Interoperability for Microwave Access)

WiMax is a new standard for regional radio networks of the third and fourth generation. WiMax is being considered both as a stationary as well as a mobile alternative or complement to DSL lines and UMTS connections.

WLAN (Wireless Local Area Network)

Wireless networks for mobile Internet access. The network can also connect multiple computers to each other or to a central information system, a printer, or a scanner.

WLAN/Wi-Fi hotspots

WLAN (Wireless Local Area Network) or Wi-Fi (a term introduced for marketing purposes) refers to a widespread technology for wireless data exchange including high-speed Internet connection via radio in a computer network. Hotspots give users access to the network.