Wireless LANs consist of components similar to traditional Ethernet-wired LANs. In fact, wireless LAN protocols are similar to Ethernet and comply with the same form factors. The big difference, however, is that wireless LANs don't require wires.
Users of wireless LANs operate a multitude of devices, such as PCs, laptops, and PDAs. The use of wireless LANs to network stationary PCs is beneficial because of limited needs for wiring. Laptops and PDAs, however, are commonly equipped with wireless LAN connectivity because of their portable nature. User devices might consist of specialized hardware as well. For example, bar code scanners and patient monitoring devices often have wireless LAN connectivity.