WIFI technology principle
Wireless network in the area of wireless LAN refers to the "wireless compatibility certification," is essentially a commercial certification, but also a wireless networking technology, previously connected to the computer through a network cable, and wireless fidelity is connected by radio waves Network; common is a wireless router, then the wireless router in the effective coverage of the radio coverage can be connected using wireless fidelity networking, if the wireless router is connected to an ADSL line or other Internet access line, it is also known as Hot spots.
A wireless network is a technology that wirelessly connects terminals such as personal computers and handheld devices (such as PDAs and cell phones) to each other.
Wi-Fi is a brand of wireless network communications technology and is held by the Wi-Fi Alliance. The purpose is to improve the interoperability of wireless network products based on the IEEE802.11 standard.