What is NAS?

This site explains what Network Attached Storage (NAS) is and how it works. NAS is a file system that is connected to a computer network to provide access to data by different network clients. NAS is usually connected through a network switch or a router. NAS enhances performance and can be used in lower cost systems such as load-balancing and fault-tolerant email and web server systems. NAS can support a number of protocols namely: network files system, file transfer protocol and common internet files system.

The disc formats supported by NAS are SATA and standard ATA. Redundant Arrays of Independent Disks (RAID) can be set up on a NAS to act as a back-up without storing information on a PC.