This is a retail boxed DVD used to install Mac OS X Leopard 10.5.1 This product includes all electronic documentation in the box. This disk can be installed on any PowerPC or Intel based Mac which matches the system requirements of 10.5.
If you are installing this software onto a machine which is currently running a version of 10.4 (Tiger) a clean installation is required to update the machine to 10.5. This means that the hard drive will need to be completely erased first before the installation can take place.
Please note that this software does not include any of the iLife or iWork applications.System Requirements:• A PowerPC G4 (867MHz or faster), Power PC G5, Intel Core Duo or Intel Core 2 Duo Processor
• 9GB of free hard drive space
• 512MB of RAM
• DVD drive for installation.