Explanation of WiFi Routers
Without WiFi routers, there is a good possibility that Internet would not exist at this point. The router is used to transmit and receive most of the information that flows from one computer to another. The device works by sending signals to other wireless hardware by use of an antenna. It communicates with the Internet by use of a wire. One of the most common uses for WiFi routers is in the sending and receiving of emails around the globe.
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Function
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WiFi is simply a mode of two-way communication conducted across a wireless computer network. It works on the same scientific principle as radio waves. Not only is the technology effective for radios, but also televisions and mobile phones. The process is carried out in two steps. First, a wireless device, called an adapter, decodes information into a radio signal. The radio wave is then transmitted through the air via a wireless antenna. Second, the WiFi router picks up the signal and deciphers it. It in turn conveys the information across the Web by use of a hard-wired connection known as the Ethernet.
Features
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WiFi routers are used for a variety of purposes. Sometimes there are multiple computers in a home or business that are not connected through a network. In some cases, the user may just want to the eliminate cables and wires associated with a wired or Ethernet network. A wireless router is required to accomplish this objective. WiFi routers typically contain the following components: a router; an opening, called a port, to attach the DSL modem or cable; an Ethernet hub or connection spot; a firewall; and a wireless access point.
Wireless routers permits users to link to other computers to a network by the use of Ethernet cables or wireless signals. They can also link computers to the Web or to a printer. Generally, WiFi routers can cover about 30 yards. The signal may be affected by doors, floors and walls. Coverage can be extended with devices called repeaters or extenders.
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Standards
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The standards for wireless routers vary, such as 802.11, 802.11n or 802.11g. The 802.11g is the most common standard used because of its reputation for speed and dependability. Usually, routers can be simply connected into the system and are ready to operate at the vendor's default setting. Some configurations can be changed by the user, including the Service Set Identifier (SSID), which is the name of the network; the channel (the default is usually "6") and security, which is the user name and password.
Security
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Hackers are constantly on the lookout for WiFi routers with an open hotspot; therefore, it's important to take the necessary steps to ensure that your wireless network is secured. The first task is to use the latest security measures available. Currently, the two systems for network security are WiFi Protected Access (WPA) and Media Access Control (MAC). WEP uses a method known as temporal key integrity protocol (TKIP) encryption. TKIP employs a combination of three elements to provide security, including a password. In contrast, MAC uses the unique (MAC) address of the computer to allow access to the network. This system is perhaps the most secure.
Transmitting Data
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WiFi routers have the built-in technology to know exactly where to send data. It looks at each bundle of data (packets) as it is transmitted through the system and determines where to send the information. To complete this process, the router needs two pieces of information: the addresses and the network structure. Armed with this information, the router makes sure that the data goes only where it's needed.
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