Currently Being ModeratedOct 6, 2012 8:03 PM (in response to aanandrose)
Leopard 10.5 Technical Requirements - http://support.apple.com/kb/SP517
List of Applications Not Compatible with Leopard - http://guides.macrumors.com/List:Applications_Not_Compatible_with_Leopard
Texas Mac Man, Leopard disc sources - https://discussions.apple.com/thread/3636662
"a brody" post about upgrading to Leopard - https://discussions.apple.com/thread/3373795
Currently Being ModeratedOct 7, 2012 7:31 PM (in response to aanandrose)
If this eMac is a 1.0 Ghz model or slower, I would recommend staying on OS X 10.4.11 Tiger.
I do not think you'll like the slower speed of your eMac if you upgrade to OS X 10.5 Leopard.
Currently Being ModeratedNov 8, 2012 10:20 AM (in response to aanandrose)
I am using eMac Power PC G4 with OS 10.4.11
How I can upgrade to OS 10.5 and then 10.5.6 ?
Do I need to upgrade any hardware also ?
Leopard, OS 10.5.x is the max OS for PowerPC processor Macs.