What is a wireless network?
A network can be one computer connected to the Internet, or two or more computers connected to each other (and also to the Internet). In a wireless network, the computers are connected by radio signals instead of wires or cables. Advantages of wireless networks include mobility and no unsightly wires. Disadvantages can include a slower connection than a wired network and interference from other wireless devices, such as cordless phones.
Note: This information provided by Microsoft.