Network Types 15 the case. When LANs are connected together with high-speed solutions over a territory that is relatively close together (such as several buildings in a city, region, or county), it can be considered a MAN. A MAN is a group of LANs that are internetworked within a local geographic area, which IEEE defines as being 50 km or less in diameter. Storage Area Network A SAN is used to connect storage devices together using high-speed connections. It is a segment of a network that allows storage devices to be accessed by computers within the larger LAN or WAN. These storage devices consist of hard disks or other methods of storing data and allow users of the network to view and/or save data to a centralized location. Personal Area Network A PAN is a wireless network that allows devices to exchange data with com- puters. Personal digital assistants (PDAs), cell phones, and other devices that someone can carry on their person and support this technology have a wire-