I'm trying to help my friend with her Mac (I am only familiar with windows). She has an iMac, model identifier iMac7,1 running OS X 10.5.8 (9L31a). She also currently uses for work Adobe Creative Suite 3. Because adobe switched their software model to subscription, she will need to sign up for that to get the newest versions she needs. The questions I have are is this OS version she is running the latest version, is there a new version, or is this the last version that that model iMac would use? Is there a way on the mac to check for OS updates like on windows? In your Mac opinion, would this computer model/OS support the newest adobe CS programs? She's ready to purchase a MacBook if she needs to for her adobe needs but would like to get as much life as possible on her existing iMac. Thanks for your help!