Wireless Internet access, sometimes called a “hotspot” if it is publicly available, is a local area network (LAN) operated by radio waves instead of wires. It streams from a central hub, which is a wired device that actually carries the internet connection. The hub, located on the main computer system or server, transmits Internet connectivity to clients, which basically includes anyone within receiving range equipped with a wireless LAN card and a password for the network, if protected.
A login interface for a wireless Internet connection.
At home, a desktop system configured for wireless Internet access will broadcast connectivity throughout the immediate area. Any family member with a laptop or desktop computer in another room can connect wirelessly to the Internet to share the main connection. Neighbors can also access this wireless connection, which is why most wireless LANs are configured with password security. In this case, any machine that wants to connect wirelessly must first complete a “handshake” with the LAN, asking for the password. If the correct password is not provided, access will be denied. Security protocols have been enhanced with Wi Fi Protected Access (WPA) and Wi Fi Protected Access 2 (WPA2) options.
With wireless access, computer and mobile device users can move around while online.
While wireless Internet access is great at home, it can be even more so at work. A wired network can not only take a long time to install in a building, but can also be very expensive. Ethernet cables used to connect client machines may need to be routed through walls, ceilings, and floors. In the past, this disadvantage was sometimes overlooked due to the advantages of increased security and faster data transfer speeds over these cables.
Many hotels offer free WiFi Internet for guests.
However, these advantages were greatly mitigated. Wireless LANs can be set up in virtually minutes by almost anyone, are extremely inexpensive, and can have data transfer rates that rival wired Ethernet LANs. Additionally, WPA2 encrypts all traffic on the LAN, solving the eavesdropping problem.
Standard local area networks use cables.
One of the most popular applications for wireless Internet access is the public hotspot. Internet cafes are an example of places where you can sit down with a laptop and have a coffee while you browse the Internet, check email, or do research. Cell phones and personal digital assistants (PDAs) equipped with web browsers can also use these hotspots through public hotspots.
Some locations offer free wireless internet for residents and visitors. Because wireless LANs use radio waves that become distorted over long distances, the radius of the signal is limited, and the farther from the hub, the weaker the signal. Therefore, cities that provide access generally cover a specific area of the city where people can park to gain access.
Wireless LAN technology is constantly improving. When designing a new wireless network, the person setting it up should ensure that they obtain network cards, a wireless hub, and a wireless modem that support the latest protocols and security measures. The instructions must be followed carefully when setting up the wireless network.
Wireless Internet access allows remote employees to continue working on the go.
