General Doc

Published: Jan 16th, 2012

Re-Posted: Apr 24th, 2017

How to tell what Mac OS version you are running

Select the Apple Menu and then "About this Macintosh" to find out what version of System Software you are running as shown below.

Old Mac OS

Figure 1

Older Macs

Mac OS 8+

Figure 2

Mac OS 8 and above

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