To back up a iMac do i need a specific external hard drive or can i use any?

I have been told by an apple support advisor that i need to update the software on my mac. Before i do this i need to back it up using an external hard drive. Can i use any external hard drive or do i need a specific one that is compatable.

iMac, Mac OS X (10.5.8)

Posted on Sep 8, 2016 9:59 AM

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To back up a iMac do i need a specific external hard drive or can i use any?

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