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IM thinking your confused, do u mean an imac g4 and g5 or g3 and g4 , and you can install linux off of bootcamp if u want i tried ubuntu and works but im not sure if it works with other linux's

No, when he said g1, he meant the first generation of iMac's. So they are very very old - the old school all in one crt bondi blue etc.
 
"-Too easy to use that a computer newbie can become pro"

Macs can easily become as complicated as any Linux distro or *BSD, depending on what you do.
 
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