Network Attached Storage (NAS) is hard disk
storage that is set up with its own network address rather than being attached to the department computer that is serving applications to a network's workstation users. By removing storage access and its management from the department server, both application programming and files can be served faster because they are not competing for the same processor resources. The network-attached storage device is attached to a local area network (typically, an Ethernet
network) and assigned an IP address
. File requests are mapped by the main server to the NAS file server.