Today we see WiFi connections in almost every house to have an access to the internet. WiFi provides a very high speed internet connection with frequency range between 2.4Ghz to 5Ghz. Wi-Fi is a technology that is used for network connections. The term Wi-Fi stands for wireless fidelity. WiFi provides the network connections by using the radio waves. WiFi can be connected to any device such as smart phones, laptops, tablets and any number of devices can be connected to WiFi simultaneously. The area were a WiFi can be accessed is called as Hotspot which can be either at home or a school, office, restaurant etc. To access hotspot on the computer, user should have a wireless adapter if the computer does not already have a built-in wireless transmitter. The wireless adapter can be plugged into usb slot or a PCI slot after which the wifi signals will be detected automatically.