Wired Networks:
This is the simplest type. This type of network needs an Ethernet adapter (network Interface card), a router and Ethernet cables. The Ethernet adapter (network Interface card) is fixed into ther computer's motherboard
Wireless Networks
Wireless network does not need wires, which reduces railing of wires all over. Wireless access Points are used to access wireless connection. All wireless connections are password protected because the WPA (Wi-Fi Protected Access) device encrypts the data transferring through and it can be captured and read by someone nearby who also has a wireless adapter in their computer. Wireless network is widely used to connect mobile devices such as a laptop or Wi-Fi-enabled iPod, IPad and mobile phones.
Wireless Network Speeds
Wireless network speeds can also vary from moment to moment, depending on interference from devices such as cordless phones or microwaves.