Wi-Fi (WiFi) – This is short for wireless fidelity, and is the generic name for any wireless network. A wireless network lets computers communicate with each other and the Internet without “in the wall” cabling. This technology has become very popular with home computer users because it allows two or more home computers to share files, printers, and other equipment without the mess and expense of wiring. It also allows more than one computer to access the Internet at the same time from one account. Laptop computer users are flocking to wireless networking because it gives them access to the Internet from various locations. They can surf the Internet from a lounge chair in the back yard as well as from various Hotspot locations.

Hotspot – Any location that provides public wireless Internet access. Hotspots can often be found in parks, airports, train stations, hotels, and restaurants. Even many McDonald’s restaurants have now become hotspots. Some hotspots are free, while others require a fee. All can be accessed with a computer that has a wireless network card or built-in wireless capability.

Warchalking – This is marking outdoor surfaces like sidewalks, brick walls and signposts with chalk marks that indicate that a wireless network is available at that location. The markings indicate if the area is openly accessible, is protected by a password, or is protected by other security measures. Some people roam around cities and towns looking for Warchalked locations where they can use their wireless laptop computer to hook up to the Internet.