All About Wi-Fi
Introduction
Computers, laptops, cell phones and palm pilots are examples of mechanisms that can grant the user internet access. Although computers and laptops are capable of having normal internet connection (i.e. Ethernet connection), they are also able to have internet access through wireless technology. Cell phones and palm pilots can only be connected to the internet by wireless connection. Wireless networking is possible through the technology of wireless-fidelity. Wireless-fidelity or WiFi as most people call it allows a ubiquitous internet connection to be broadcasted through radio waves. Its purpose serves directly to the users looking for internet access devoid of any cords or wires.
Summary
Radio waves are the keys which make WiFi networking possible. These radio signals are transmitted from antennas and routers and are picked up by WiFi receivers such as computers and cell phones that are equipped with WiFi cards. Whenever a computer receives any of the signals within the range of a WiFi network which is usually 300 ? 500 feet for antennas and 100 ? 150 feet for routers, the WiFi card will read the signals and thus create an internet connection between the user and the network without the use of a cord. Usually the connection speed is increases as the computer gets closer to the main source of the signal and decreases when the computer gets further away. With that in mind, think of the WiFi card as being an invisible cord that connects your computer to the antenna for a direct connection to the internet. Many new laptops already come with a WiFi card built in and in many cases you don't have to do anything to start WiFi which is one of the best things about it and how simple it is. WiFi cards can be external or internal, m ...