Network Attached Storage

Back Up unit shared across multiple computers on a network.

Time Machine.

May'2013: a friend recommends Synology. The DS1513 is the one to get, but just came out and supply looks backordered; a 1512 or even 1511 (which is what I have, since I bought it >18 months ago) would work fine too.

Edited:    |       |    Search Twitter for discussion