(Wireless Fidelity)

Wi-Fi is short for Wireless Fidelity, which has a standard set of terms that is used for Wireless Local Networks (Wireless Local Area Networks - WLANs) based on IEEE 802.11 specification. Latest from the 802.11a standard specifications or b, such as 802.16 g, is currently in preparation, the latest specification will offer a considerable increase from extented further speed up the transfer.

Wi-Fi was originally intended for the use of wireless devices and networks Local Area (LAN), but now more widely used to access the internet . This enables anyone with a computer with a wireless card (wireless card) or personal digital assistant (PDA) to connect with Internet using an access point (or known as hotspots) nearest

There are 2 mode Wi-Fi access
This connection mode is a mode where multiple computers are connected directly, or better known as Peer-to-Peer . Advantages, cheaper and more practical when connected only two or three computers, without having to buy the access point
Using the Access Points which functions as a regulator of the data traffic, allowing many Clients can be connected via a network ( Network ).