Network-attached storage, or NAS, is a smart way to share storage space on your home network without having to devote a whole computer to it. Gizmodo's latest How-To guide explains how to buy, set up, and start streaming media or backing up.
Gizmodo's guide details the different things you can do with a good NAS setup, including access to files from anywhere in the world, serving as a remote Time Machine or other backup software drop spot, streaming video and music to any computer in the house, and offering really crash-proof, RAID-based backup. You could, if you wanted, put an older computer into service as a NAS device, but there are plenty of dedicated NAS boxes out there, too, and some are suggested by Gizmodo's testers.
How To Get the Most Out Of Your NAS [Gizmodo]