My wife's display went bad and I want to back up her computer so that when we buy her a new one I can "restore from backup". I connected her computer to my Mac using Target Disk Mode and can copy the files onto a separate hard drive but that doesn't seem like the best way to do it since my guess is it is not saved as a "backup" that the new computer will recognize. Right? Could I use Time Machine on the remote computer to make a backup? Stumped. Any thoughts? Thanks.