Networking involves communication between devices and networks. There are several types of networks including LANs which connect devices within a small area like a home or office, MANs which connect a larger area like a city, and WANs which connect over long distances like between countries. Specialized networks also exist like SANs which connect storage devices, PANs which connect personal devices like phones and computers, GANs which support mobile communication across wireless and satellite areas, and CANs which connect LANs within a campus or building area.