Network wireless systems around the world, or Wi-Fi (WLAN = Wireless Local Area Network) is the concept of change anywhere in the world in the Internet connection, wireless as. A universal service by using wireless network communicationThe data communication system wireless this agility. Because use to send radio; radio in RF waves and infrared. To receive and send data between each computer. Through the air. Through walls.Without the requirement of wiring It also can work conveniently. Not like the system LAN wired, it takes time and investment in changing the use of machines. The computer.Between private companies and the government.