Learn in the textbookSystem Configurations for Availability and Reliability
DefinitionNAS is a storage device, connected directly to a LAN, that specializes in sharing files.
ExplanationBecause it has its own built-in functions for managing and serving files, several terminals on the network can read and write the same files without a separate server computer. Many models also build their internal disks as RAID to guard against failure.
AnalogyIt is like a shared bookcase in the middle of the office. Anyone can come over from their own desk to take out or put back the same documents.
Memory hookNAS stands for Network Attached Storage. Read it literally, "storage attached to the network", and the picture is right there.