Q: to upgrade os on Power PC G4 emac to 10.5.6

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

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.

https://discussions.apple.com/docs/DOC-2275 is the latest version of my tip for 10.5.

aanandrose wrote:

 

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.

 Cheers, Tom