NAS

1. Short for Network Access Server, NAS is also known as a terminal server and is a computer or network device that communicates you with another computer or service. For example, when you dial in to connect to the Internet, you're dialing into a NAS.
2. Also short for Network Attached Storage, NAS is any type of storage that is connected to a network that only provides a network with additional storage. A NAS will only provide a network with additional storage and does not have any type of processing power, all processing will continue to be done by the server; this means it cannot be used to execute or run network shared programs.

Also see: DAS, Network definitions, RAS