to commonly asked questions.

What hard drive do I need and do I need one per computer?

When I sent it off to repair they asked me if I had backed it on a hard drive. What should I get for a hard drive?

A simple $60 hard drive from Amazon is really all you need. You can get a Seagate 2TB for about that. They’re great.

and does each computer need their own hard drive?

No but humans are lazy and we tend to forget to use drives when sharing between computers so in the long run, each having its own drive is better.
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