Wi-Fi is a technology for wireless local area networking that allows electronic devices like the PC, laptop, mobile phone, or tablet to connect at a high speed to the internet without the need for a physical wired connection. The availability of wireless Internet service has changed both the way that people use the Internet and the devices that they use to get online. It has led to the growth and use of tablet computers, smartphones and mobile computing capabilities in MP3 players and other small devices. There are many reasons for the use of wireless Internet both at home or the office Wi-Fi is delivered by three ways and one way is through a dedicated hardware card which fits into a slot on the computer that are provided by mobile service providers to allow users to access the Internet like mobile who make data transmissions or browse the Internet on their phones. The second way is through a secured network that is controlled by users needing a netw...