Question about upgrading iMac and having a back up.

I am going to upgrade a machine that will have zero data that I need. It will be a fresh start if you will. It is a 2011 imac with 20 GB of Ram and an SSD. Do I need any kind of Time Machine or backup if there is no data to transfer? I hope that makes sense.

Also, which OS would you recommend for a mid 2011? Thanks!!

submitted by /u/akamelborne77
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