We have 2 MBA's, and 2 PC's. What would the best option for a physical back up option? I would like it attached to my network. all four devices have 512 drives. Thanks for any input.....
There are a variety of ways to do it. You could get a NAS, a disk drive connected to a router, or a storage device shared by one of the other devices on the network.
i dunno if you want all 4 devices on the network, this means all the files of the 4 devices can be accessed by any one on the network. You can use something like WD simple solution or something more pro like Synology .
I highly suggest you research this before buying or implementing anything, there is always that "I wish I knew this before I made the purchase" thought afterwards.