Wireless networks transfer data from computer to computer, or from computer to other equipment using radio waves, which can pass through floors and ceilings and around walls. The two main building blocks of the network are access points and client adapters.

Access Points and Bridge Routers
These devices are the data transfer stations in the network. They operate just like a hub in a wired network, connecting multiple computers and devices together, but without wires. They also provide a bridge between the wireless network and a previously existing wired network. Bridge routers are access points that also provide a connection for a high-speed modem and basic routing capability for several computers.

Client Adapters: PC cards, USB devices and modules
Wired or wireless, every network uses adapters. Whether they are removable cards for notebooks or USB adapters for desktops, they are the link between the computer and the network. If you have hardware already integrated with a wireless adapter like many of our Gateway® notebooks, you won't need a separate adapter.



802.11b (WiFi)
The most established wireless LAN technology, it's also the most affordable. Allows wireless connections up to 300 feet from an access point, and can easily be added to existing wired networks. With speeds up to 11 Mbps, performance is comparable to a standard wired Ethernet network. Industry standard 802.11b products are easy to find and compatible with each other.

802.11a
802.11a provides a bigger pipe for data and supports more simultaneous users. Ideal for deployments where speed and bandwidth are important, 802.11a networks can run at up to 54Mbps and support more users per access point than a Wi-Fi solution.

Are they compatible?
802.11a devices do not talk to 802.11b devices, but there are certain access points (usually called dual access points) that enable the use of both types of networks simultaneously. The speed for each user is determined by what kind of adapter the user has in his computer or wireless device.



Multiple users can slow any network - wired or not. A reliable broadband Internet connection is critical for providing the best experience for all of your networked users.